/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-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:17:21,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:17:21,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:17:21,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:17:21,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:17:21,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:17:21,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:17:21,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:17:21,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:17:21,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:17:21,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:17:21,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:17:21,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:17:21,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:17:21,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:17:21,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:17:21,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:17:21,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:17:21,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:17:21,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:17:21,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:17:21,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:17:21,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:17:21,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:17:21,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:17:21,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:17:21,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:17:21,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:17:21,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:17:21,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:17:21,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:17:21,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:17:21,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:17:21,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:17:21,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:17:21,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:17:21,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:17:21,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:17:21,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:17:21,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:17:21,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:17:21,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:17:21,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:17:21,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:17:21,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:17:21,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:17:21,181 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:17:21,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:17:21,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:17:21,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:17:21,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:17:21,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:17:21,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:17:21,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:17:21,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:17:21,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:17:21,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:17:21,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:17:21,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:17:21,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:17:21,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:17:21,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:17:21,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:17:21,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:17:21,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:17:21,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:17:21,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:17:21,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:17:21,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:17:21,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:17:21,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:17:21,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:17:21,657 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:17:21,658 INFO L432 ainManager$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-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2020-12-22 15:17:21,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0b64f5b/8b9f2a16ed274a65a6fdd0f8e60d5de1/FLAGa3260af12 [2020-12-22 15:17:22,719 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:17:22,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2020-12-22 15:17:22,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0b64f5b/8b9f2a16ed274a65a6fdd0f8e60d5de1/FLAGa3260af12 [2020-12-22 15:17:23,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed0b64f5b/8b9f2a16ed274a65a6fdd0f8e60d5de1 [2020-12-22 15:17:23,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:17:23,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:17:23,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:17:23,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:17:23,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:17:23,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:17:23" (1/1) ... [2020-12-22 15:17:23,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eebd71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:23, skipping insertion in model container [2020-12-22 15:17:23,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:17:23" (1/1) ... [2020-12-22 15:17:23,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:17:23,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:17:24,386 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-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2020-12-22 15:17:24,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:17:24,469 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:17:24,786 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-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2020-12-22 15:17:24,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:17:25,078 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:17:25,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25 WrapperNode [2020-12-22 15:17:25,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:17:25,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:17:25,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:17:25,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:17:25,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:25,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:26,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:17:26,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:17:26,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:17:26,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:17:26,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:26,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:26,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:26,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:27,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:27,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:27,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... [2020-12-22 15:17:28,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:17:28,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:17:28,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:17:28,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:17:28,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:17:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:17:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:17:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:17:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:17:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:17:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:17:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:17:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:17:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 15:17:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:17:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:17:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:17:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:17:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:17:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:17:28,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:17:59,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:17:59,164 INFO L299 CfgBuilder]: Removed 7514 assume(true) statements. [2020-12-22 15:17:59,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:17:59 BoogieIcfgContainer [2020-12-22 15:17:59,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:17:59,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:17:59,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:17:59,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:17:59,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:17:23" (1/3) ... [2020-12-22 15:17:59,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d9b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:17:59, skipping insertion in model container [2020-12-22 15:17:59,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:17:25" (2/3) ... [2020-12-22 15:17:59,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d9b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:17:59, skipping insertion in model container [2020-12-22 15:17:59,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:17:59" (3/3) ... [2020-12-22 15:17:59,180 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2020-12-22 15:17:59,187 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:17:59,195 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 42 error locations. [2020-12-22 15:17:59,215 INFO L253 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2020-12-22 15:17:59,263 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:17:59,263 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:17:59,263 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:17:59,263 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:17:59,264 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:17:59,264 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:17:59,264 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:17:59,264 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:17:59,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6445 states. [2020-12-22 15:17:59,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 15:17:59,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:17:59,378 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] [2020-12-22 15:17:59,378 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:17:59,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:17:59,385 INFO L82 PathProgramCache]: Analyzing trace with hash 229863683, now seen corresponding path program 1 times [2020-12-22 15:17:59,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:17:59,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456253577] [2020-12-22 15:17:59,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:17:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:17:59,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:17:59,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456253577] [2020-12-22 15:17:59,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:17:59,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:17:59,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549484916] [2020-12-22 15:17:59,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:17:59,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:17:59,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:17:59,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:17:59,891 INFO L87 Difference]: Start difference. First operand 6445 states. Second operand 2 states. [2020-12-22 15:18:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:18:00,162 INFO L93 Difference]: Finished difference Result 12886 states and 18666 transitions. [2020-12-22 15:18:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:18:00,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 63 [2020-12-22 15:18:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:18:00,218 INFO L225 Difference]: With dead ends: 12886 [2020-12-22 15:18:00,218 INFO L226 Difference]: Without dead ends: 6434 [2020-12-22 15:18:00,236 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 15:18:00,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6434 states. [2020-12-22 15:18:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6434 to 6434. [2020-12-22 15:18:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6434 states. [2020-12-22 15:18:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6434 states to 6434 states and 9224 transitions. [2020-12-22 15:18:00,489 INFO L78 Accepts]: Start accepts. Automaton has 6434 states and 9224 transitions. Word has length 63 [2020-12-22 15:18:00,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:18:00,489 INFO L481 AbstractCegarLoop]: Abstraction has 6434 states and 9224 transitions. [2020-12-22 15:18:00,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:18:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 6434 states and 9224 transitions. [2020-12-22 15:18:00,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 15:18:00,493 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:18:00,493 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] [2020-12-22 15:18:00,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:18:00,494 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:18:00,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:18:00,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1966664585, now seen corresponding path program 1 times [2020-12-22 15:18:00,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:18:00,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632367719] [2020-12-22 15:18:00,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:18:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:18:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:18:00,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632367719] [2020-12-22 15:18:00,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:18:00,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:18:00,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473671991] [2020-12-22 15:18:00,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:18:00,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:18:00,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:18:00,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:18:00,759 INFO L87 Difference]: Start difference. First operand 6434 states and 9224 transitions. Second operand 3 states. [2020-12-22 15:18:01,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:18:01,201 INFO L93 Difference]: Finished difference Result 16860 states and 24158 transitions. [2020-12-22 15:18:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:18:01,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-22 15:18:01,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:18:01,260 INFO L225 Difference]: With dead ends: 16860 [2020-12-22 15:18:01,260 INFO L226 Difference]: Without dead ends: 10485 [2020-12-22 15:18:01,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:18:01,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10485 states. [2020-12-22 15:18:01,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10485 to 10437. [2020-12-22 15:18:01,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10437 states. [2020-12-22 15:18:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10437 states to 10437 states and 14977 transitions. [2020-12-22 15:18:01,784 INFO L78 Accepts]: Start accepts. Automaton has 10437 states and 14977 transitions. Word has length 63 [2020-12-22 15:18:01,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:18:01,786 INFO L481 AbstractCegarLoop]: Abstraction has 10437 states and 14977 transitions. [2020-12-22 15:18:01,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:18:01,786 INFO L276 IsEmpty]: Start isEmpty. Operand 10437 states and 14977 transitions. [2020-12-22 15:18:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 15:18:01,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:18:01,791 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] [2020-12-22 15:18:01,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:18:01,791 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:18:01,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:18:01,795 INFO L82 PathProgramCache]: Analyzing trace with hash -404925101, now seen corresponding path program 1 times [2020-12-22 15:18:01,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:18:01,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828357800] [2020-12-22 15:18:01,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:18:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:18:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:18:02,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828357800] [2020-12-22 15:18:02,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:18:02,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:18:02,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825123652] [2020-12-22 15:18:02,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:18:02,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:18:02,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:18:02,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:18:02,021 INFO L87 Difference]: Start difference. First operand 10437 states and 14977 transitions. Second operand 5 states. [2020-12-22 15:18:06,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:18:06,494 INFO L93 Difference]: Finished difference Result 47549 states and 68047 transitions. [2020-12-22 15:18:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:18:06,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-12-22 15:18:06,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:18:06,644 INFO L225 Difference]: With dead ends: 47549 [2020-12-22 15:18:06,645 INFO L226 Difference]: Without dead ends: 37171 [2020-12-22 15:18:06,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:18:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37171 states. [2020-12-22 15:18:07,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37171 to 36896. [2020-12-22 15:18:07,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36896 states. [2020-12-22 15:18:07,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36896 states to 36896 states and 52633 transitions. [2020-12-22 15:18:07,936 INFO L78 Accepts]: Start accepts. Automaton has 36896 states and 52633 transitions. Word has length 66 [2020-12-22 15:18:07,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:18:07,937 INFO L481 AbstractCegarLoop]: Abstraction has 36896 states and 52633 transitions. [2020-12-22 15:18:07,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:18:07,937 INFO L276 IsEmpty]: Start isEmpty. Operand 36896 states and 52633 transitions. [2020-12-22 15:18:07,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 15:18:07,939 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:18:07,939 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] [2020-12-22 15:18:07,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:18:07,940 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:18:07,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:18:07,940 INFO L82 PathProgramCache]: Analyzing trace with hash 136692814, now seen corresponding path program 1 times [2020-12-22 15:18:07,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:18:07,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680964945] [2020-12-22 15:18:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:18:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:18:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:18:08,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680964945] [2020-12-22 15:18:08,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:18:08,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:18:08,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555028074] [2020-12-22 15:18:08,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:18:08,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:18:08,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:18:08,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:18:08,072 INFO L87 Difference]: Start difference. First operand 36896 states and 52633 transitions. Second operand 5 states. [2020-12-22 15:18:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:18:13,251 INFO L93 Difference]: Finished difference Result 167932 states and 239209 transitions. [2020-12-22 15:18:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:18:13,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-12-22 15:18:13,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:18:13,597 INFO L225 Difference]: With dead ends: 167932 [2020-12-22 15:18:13,598 INFO L226 Difference]: Without dead ends: 131095 [2020-12-22 15:18:13,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:18:13,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131095 states. [2020-12-22 15:18:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131095 to 130777. [2020-12-22 15:18:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130777 states. [2020-12-22 15:18:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130777 states to 130777 states and 185470 transitions. [2020-12-22 15:18:18,302 INFO L78 Accepts]: Start accepts. Automaton has 130777 states and 185470 transitions. Word has length 67 [2020-12-22 15:18:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:18:18,303 INFO L481 AbstractCegarLoop]: Abstraction has 130777 states and 185470 transitions. [2020-12-22 15:18:18,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:18:18,303 INFO L276 IsEmpty]: Start isEmpty. Operand 130777 states and 185470 transitions. [2020-12-22 15:18:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 15:18:18,304 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:18:18,304 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] [2020-12-22 15:18:18,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:18:18,305 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:18:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:18:18,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1320272040, now seen corresponding path program 1 times [2020-12-22 15:18:18,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:18:18,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830107396] [2020-12-22 15:18:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:18:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:18:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:18:18,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830107396] [2020-12-22 15:18:18,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:18:18,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:18:18,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619284823] [2020-12-22 15:18:18,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:18:18,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:18:18,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:18:18,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:18:18,432 INFO L87 Difference]: Start difference. First operand 130777 states and 185470 transitions. Second operand 5 states. [2020-12-22 15:18:30,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:18:30,059 INFO L93 Difference]: Finished difference Result 590105 states and 836150 transitions. [2020-12-22 15:18:30,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:18:30,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-22 15:18:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:18:31,284 INFO L225 Difference]: With dead ends: 590105 [2020-12-22 15:18:31,284 INFO L226 Difference]: Without dead ends: 459387 [2020-12-22 15:18:31,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:18:32,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459387 states. [2020-12-22 15:18:42,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459387 to 458995. [2020-12-22 15:18:42,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458995 states. [2020-12-22 15:18:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458995 states to 458995 states and 647592 transitions. [2020-12-22 15:18:44,268 INFO L78 Accepts]: Start accepts. Automaton has 458995 states and 647592 transitions. Word has length 68 [2020-12-22 15:18:44,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:18:44,268 INFO L481 AbstractCegarLoop]: Abstraction has 458995 states and 647592 transitions. [2020-12-22 15:18:44,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:18:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 458995 states and 647592 transitions. [2020-12-22 15:18:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 15:18:44,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:18:44,270 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] [2020-12-22 15:18:44,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:18:44,270 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:18:44,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:18:44,271 INFO L82 PathProgramCache]: Analyzing trace with hash 550874627, now seen corresponding path program 1 times [2020-12-22 15:18:44,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:18:44,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147181211] [2020-12-22 15:18:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:18:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:18:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:18:44,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147181211] [2020-12-22 15:18:44,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:18:44,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:18:44,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777967300] [2020-12-22 15:18:44,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:18:44,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:18:44,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:18:44,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:18:44,403 INFO L87 Difference]: Start difference. First operand 458995 states and 647592 transitions. Second operand 5 states. [2020-12-22 15:19:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:23,439 INFO L93 Difference]: Finished difference Result 2042515 states and 2879816 transitions. [2020-12-22 15:19:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:19:23,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-12-22 15:19:23,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:30,764 INFO L225 Difference]: With dead ends: 2042515 [2020-12-22 15:19:30,764 INFO L226 Difference]: Without dead ends: 1583579 [2020-12-22 15:19:33,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:19:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583579 states.