/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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:07:32,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:07:32,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:07:32,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:07:32,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:07:32,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:07:32,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:07:32,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:07:32,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:07:32,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:07:32,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:07:32,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:07:32,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:07:32,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:07:32,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:07:32,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:07:32,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:07:32,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:07:32,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:07:32,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:07:32,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:07:32,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:07:32,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:07:32,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:07:32,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:07:32,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:07:32,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:07:32,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:07:32,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:07:32,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:07:32,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:07:32,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:07:32,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:07:32,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:07:32,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:07:32,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:07:32,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:07:32,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:07:32,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:07:32,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:07:32,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:07:32,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:07:32,561 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:07:32,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:07:32,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:07:32,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:07:32,564 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:07:32,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:07:32,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:07:32,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:07:32,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:07:32,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:07:32,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:07:32,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:07:32,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:07:32,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:07:32,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:07:32,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:07:32,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:07:32,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:07:32,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:07:32,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:07:32,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:07:32,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:07:32,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:07:32,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:07:32,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:07:32,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:07:32,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:07:32,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:07:32,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:07:32,983 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:07:32,984 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:07:32,985 INFO L432 ainManager$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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2020-12-22 15:07:33,079 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de83559b2/ec28169a1a014e24bfb1cf9ebef197ad/FLAG15b02d061 [2020-12-22 15:07:34,338 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:07:34,339 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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2020-12-22 15:07:34,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de83559b2/ec28169a1a014e24bfb1cf9ebef197ad/FLAG15b02d061 [2020-12-22 15:07:34,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de83559b2/ec28169a1a014e24bfb1cf9ebef197ad [2020-12-22 15:07:34,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:07:34,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:07:34,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:07:34,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:07:34,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:07:34,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:34" (1/1) ... [2020-12-22 15:07:34,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14657f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:34, skipping insertion in model container [2020-12-22 15:07:34,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:07:34" (1/1) ... [2020-12-22 15:07:34,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:07:34,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:07:39,362 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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[485686,485699] [2020-12-22 15:07:39,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:07:39,562 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:07:40,322 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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[485686,485699] [2020-12-22 15:07:40,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:07:41,616 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:07:41,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41 WrapperNode [2020-12-22 15:07:41,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:07:41,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:07:41,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:07:41,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:07:41,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:41,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:43,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:07:43,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:07:43,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:07:43,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:07:43,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:43,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:43,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:43,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:44,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:44,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:44,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (1/1) ... [2020-12-22 15:07:45,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:07:45,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:07:45,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:07:45,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:07:45,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (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 15:07:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2020-12-22 15:07:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2020-12-22 15:07:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 15:07:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2020-12-22 15:07:45,249 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2020-12-22 15:07:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:07:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:07:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:07:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:07:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:07:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2020-12-22 15:07:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:07:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 15:07:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:07:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:07:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:07:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:07:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:07:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:07:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:07:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:07:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:08:30,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:08:30,000 INFO L299 CfgBuilder]: Removed 7570 assume(true) statements. [2020-12-22 15:08:30,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:08:30 BoogieIcfgContainer [2020-12-22 15:08:30,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:08:30,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:08:30,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:08:30,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:08:30,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:07:34" (1/3) ... [2020-12-22 15:08:30,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6320617e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:08:30, skipping insertion in model container [2020-12-22 15:08:30,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:07:41" (2/3) ... [2020-12-22 15:08:30,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6320617e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:08:30, skipping insertion in model container [2020-12-22 15:08:30,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:08:30" (3/3) ... [2020-12-22 15:08:30,018 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2020-12-22 15:08:30,024 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:08:30,032 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 40 error locations. [2020-12-22 15:08:30,051 INFO L253 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2020-12-22 15:08:30,101 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:08:30,101 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:08:30,101 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:08:30,101 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:08:30,101 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:08:30,101 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:08:30,102 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:08:30,102 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:08:30,214 INFO L276 IsEmpty]: Start isEmpty. Operand 8185 states. [2020-12-22 15:08:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 15:08:30,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:08:30,237 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] [2020-12-22 15:08:30,237 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:08:30,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:08:30,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1238528597, now seen corresponding path program 1 times [2020-12-22 15:08:30,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:08:30,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014405519] [2020-12-22 15:08:30,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:08:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:08:31,439 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 15:08:31,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014405519] [2020-12-22 15:08:31,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:08:31,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:08:31,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370236587] [2020-12-22 15:08:31,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:08:31,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:08:31,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:08:31,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:08:31,481 INFO L87 Difference]: Start difference. First operand 8185 states. Second operand 2 states. [2020-12-22 15:08:31,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:08:31,830 INFO L93 Difference]: Finished difference Result 16366 states and 22325 transitions. [2020-12-22 15:08:31,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:08:31,833 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-12-22 15:08:31,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:08:31,900 INFO L225 Difference]: With dead ends: 16366 [2020-12-22 15:08:31,900 INFO L226 Difference]: Without dead ends: 7639 [2020-12-22 15:08:31,923 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 15:08:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7639 states. [2020-12-22 15:08:32,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7639 to 7639. [2020-12-22 15:08:32,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7639 states. [2020-12-22 15:08:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7639 states to 7639 states and 9950 transitions. [2020-12-22 15:08:32,208 INFO L78 Accepts]: Start accepts. Automaton has 7639 states and 9950 transitions. Word has length 46 [2020-12-22 15:08:32,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:08:32,208 INFO L481 AbstractCegarLoop]: Abstraction has 7639 states and 9950 transitions. [2020-12-22 15:08:32,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:08:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7639 states and 9950 transitions. [2020-12-22 15:08:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 15:08:32,214 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:08:32,214 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] [2020-12-22 15:08:32,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:08:32,215 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:08:32,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:08:32,216 INFO L82 PathProgramCache]: Analyzing trace with hash 481683929, now seen corresponding path program 1 times [2020-12-22 15:08:32,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:08:32,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028222150] [2020-12-22 15:08:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:08:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:08:32,904 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 15:08:32,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028222150] [2020-12-22 15:08:32,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:08:32,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:08:32,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349383546] [2020-12-22 15:08:32,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:08:32,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:08:32,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:08:32,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:08:32,912 INFO L87 Difference]: Start difference. First operand 7639 states and 9950 transitions. Second operand 3 states. [2020-12-22 15:08:33,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:08:33,789 INFO L93 Difference]: Finished difference Result 20778 states and 27041 transitions. [2020-12-22 15:08:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:08:33,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-12-22 15:08:33,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:08:33,864 INFO L225 Difference]: With dead ends: 20778 [2020-12-22 15:08:33,865 INFO L226 Difference]: Without dead ends: 13152 [2020-12-22 15:08:33,885 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 15:08:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13152 states. [2020-12-22 15:08:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13152 to 12873. [2020-12-22 15:08:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12873 states. [2020-12-22 15:08:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12873 states to 12873 states and 16792 transitions. [2020-12-22 15:08:34,761 INFO L78 Accepts]: Start accepts. Automaton has 12873 states and 16792 transitions. Word has length 46 [2020-12-22 15:08:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:08:34,762 INFO L481 AbstractCegarLoop]: Abstraction has 12873 states and 16792 transitions. [2020-12-22 15:08:34,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:08:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 12873 states and 16792 transitions. [2020-12-22 15:08:34,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 15:08:34,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:08:34,774 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 15:08:34,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:08:34,775 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:08:34,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:08:34,777 INFO L82 PathProgramCache]: Analyzing trace with hash 9914257, now seen corresponding path program 1 times [2020-12-22 15:08:34,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:08:34,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039465274] [2020-12-22 15:08:34,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:08:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:08:35,727 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 15:08:35,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039465274] [2020-12-22 15:08:35,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:08:35,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:08:35,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805236076] [2020-12-22 15:08:35,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:08:35,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:08:35,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:08:35,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:08:35,733 INFO L87 Difference]: Start difference. First operand 12873 states and 16792 transitions. Second operand 4 states. [2020-12-22 15:08:37,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:08:37,318 INFO L93 Difference]: Finished difference Result 53589 states and 70044 transitions. [2020-12-22 15:08:37,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:08:37,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-12-22 15:08:37,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:08:37,462 INFO L225 Difference]: With dead ends: 53589 [2020-12-22 15:08:37,463 INFO L226 Difference]: Without dead ends: 40729 [2020-12-22 15:08:37,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:08:37,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40729 states. [2020-12-22 15:08:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40729 to 20977. [2020-12-22 15:08:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20977 states. [2020-12-22 15:08:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20977 states to 20977 states and 27474 transitions. [2020-12-22 15:08:38,570 INFO L78 Accepts]: Start accepts. Automaton has 20977 states and 27474 transitions. Word has length 67 [2020-12-22 15:08:38,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:08:38,571 INFO L481 AbstractCegarLoop]: Abstraction has 20977 states and 27474 transitions. [2020-12-22 15:08:38,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:08:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 20977 states and 27474 transitions. [2020-12-22 15:08:38,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 15:08:38,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:08:38,581 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 15:08:38,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:08:38,582 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:08:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:08:38,583 INFO L82 PathProgramCache]: Analyzing trace with hash 410844078, now seen corresponding path program 1 times [2020-12-22 15:08:38,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:08:38,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336481178] [2020-12-22 15:08:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:08:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:08:39,297 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 15:08:39,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336481178] [2020-12-22 15:08:39,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:08:39,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:08:39,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341962089] [2020-12-22 15:08:39,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:08:39,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:08:39,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:08:39,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:08:39,299 INFO L87 Difference]: Start difference. First operand 20977 states and 27474 transitions. Second operand 4 states. [2020-12-22 15:08:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:08:41,911 INFO L93 Difference]: Finished difference Result 93947 states and 123212 transitions. [2020-12-22 15:08:41,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:08:41,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-12-22 15:08:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:08:42,319 INFO L225 Difference]: With dead ends: 93947 [2020-12-22 15:08:42,319 INFO L226 Difference]: Without dead ends: 72983 [2020-12-22 15:08:42,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:08:42,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72983 states. [2020-12-22 15:08:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72983 to 40695. [2020-12-22 15:08:44,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40695 states. [2020-12-22 15:08:44,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40695 states to 40695 states and 53372 transitions. [2020-12-22 15:08:44,163 INFO L78 Accepts]: Start accepts. Automaton has 40695 states and 53372 transitions. Word has length 68 [2020-12-22 15:08:44,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:08:44,165 INFO L481 AbstractCegarLoop]: Abstraction has 40695 states and 53372 transitions. [2020-12-22 15:08:44,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:08:44,165 INFO L276 IsEmpty]: Start isEmpty. Operand 40695 states and 53372 transitions. [2020-12-22 15:08:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 15:08:44,174 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:08:44,175 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 15:08:44,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:08:44,176 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:08:44,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:08:44,176 INFO L82 PathProgramCache]: Analyzing trace with hash -45231279, now seen corresponding path program 1 times [2020-12-22 15:08:44,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:08:44,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664814267] [2020-12-22 15:08:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:08:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:08:44,800 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 15:08:44,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664814267] [2020-12-22 15:08:44,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:08:44,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:08:44,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252556210] [2020-12-22 15:08:44,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:08:44,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:08:44,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:08:44,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:08:44,804 INFO L87 Difference]: Start difference. First operand 40695 states and 53372 transitions. Second operand 4 states. [2020-12-22 15:08:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:08:49,098 INFO L93 Difference]: Finished difference Result 184051 states and 241660 transitions. [2020-12-22 15:08:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:08:49,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2020-12-22 15:08:49,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:08:49,641 INFO L225 Difference]: With dead ends: 184051 [2020-12-22 15:08:49,642 INFO L226 Difference]: Without dead ends: 143369 [2020-12-22 15:08:49,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:08:49,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143369 states. [2020-12-22 15:08:53,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143369 to 78971. [2020-12-22 15:08:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78971 states. [2020-12-22 15:08:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78971 states to 78971 states and 103660 transitions. [2020-12-22 15:08:53,295 INFO L78 Accepts]: Start accepts. Automaton has 78971 states and 103660 transitions. Word has length 69 [2020-12-22 15:08:53,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:08:53,295 INFO L481 AbstractCegarLoop]: Abstraction has 78971 states and 103660 transitions. [2020-12-22 15:08:53,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:08:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 78971 states and 103660 transitions. [2020-12-22 15:08:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 15:08:53,302 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:08:53,302 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] [2020-12-22 15:08:53,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:08:53,303 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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:08:53,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:08:53,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1298663378, now seen corresponding path program 1 times [2020-12-22 15:08:53,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:08:53,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166048402] [2020-12-22 15:08:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:08:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:08:54,073 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 15:08:54,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166048402] [2020-12-22 15:08:54,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:08:54,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:08:54,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748222776] [2020-12-22 15:08:54,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:08:54,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:08:54,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:08:54,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:08:54,076 INFO L87 Difference]: Start difference. First operand 78971 states and 103660 transitions. Second operand 4 states. [2020-12-22 15:09:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:09:01,049 INFO L93 Difference]: Finished difference Result 360771 states and 474008 transitions. [2020-12-22 15:09:01,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:09:01,050 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2020-12-22 15:09:01,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:09:01,745 INFO L225 Difference]: With dead ends: 360771 [2020-12-22 15:09:01,746 INFO L226 Difference]: Without dead ends: 281813 [2020-12-22 15:09:01,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:09:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281813 states. [2020-12-22 15:09:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281813 to 153201. [2020-12-22 15:09:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153201 states. [2020-12-22 15:09:07,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153201 states to 153201 states and 201216 transitions. [2020-12-22 15:09:07,869 INFO L78 Accepts]: Start accepts. Automaton has 153201 states and 201216 transitions. Word has length 70 [2020-12-22 15:09:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:09:07,869 INFO L481 AbstractCegarLoop]: Abstraction has 153201 states and 201216 transitions. [2020-12-22 15:09:07,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:09:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 153201 states and 201216 transitions. [2020-12-22 15:09:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 15:09:07,875 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:09:07,876 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:09:07,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:09:07,878 INFO L429 AbstractCegarLoop]: === Iteration 7 === [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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:09:07,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:09:07,879 INFO L82 PathProgramCache]: Analyzing trace with hash -43585181, now seen corresponding path program 1 times [2020-12-22 15:09:07,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:09:07,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128604920] [2020-12-22 15:09:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:09:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:09:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:09:08,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128604920] [2020-12-22 15:09:08,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:09:08,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:09:08,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264900085] [2020-12-22 15:09:08,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:09:08,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:09:08,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:09:08,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:09:08,543 INFO L87 Difference]: Start difference. First operand 153201 states and 201216 transitions. Second operand 5 states. [2020-12-22 15:09:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:09:19,342 INFO L93 Difference]: Finished difference Result 514001 states and 675232 transitions. [2020-12-22 15:09:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:09:19,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-12-22 15:09:19,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:09:20,320 INFO L225 Difference]: With dead ends: 514001 [2020-12-22 15:09:20,321 INFO L226 Difference]: Without dead ends: 360813 [2020-12-22 15:09:20,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 15:09:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360813 states. [2020-12-22 15:09:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360813 to 153281. [2020-12-22 15:09:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153281 states. [2020-12-22 15:09:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153281 states to 153281 states and 201296 transitions. [2020-12-22 15:09:27,504 INFO L78 Accepts]: Start accepts. Automaton has 153281 states and 201296 transitions. Word has length 79 [2020-12-22 15:09:27,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:09:27,505 INFO L481 AbstractCegarLoop]: Abstraction has 153281 states and 201296 transitions. [2020-12-22 15:09:27,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:09:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 153281 states and 201296 transitions. [2020-12-22 15:09:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 15:09:27,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:09:27,510 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] [2020-12-22 15:09:27,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:09:27,511 INFO L429 AbstractCegarLoop]: === Iteration 8 === [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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:09:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:09:27,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1966847418, now seen corresponding path program 1 times [2020-12-22 15:09:27,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:09:27,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515771695] [2020-12-22 15:09:27,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:09:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:09:28,319 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 15:09:28,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515771695] [2020-12-22 15:09:28,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:09:28,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:09:28,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132282024] [2020-12-22 15:09:28,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:09:28,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:09:28,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:09:28,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:09:28,322 INFO L87 Difference]: Start difference. First operand 153281 states and 201296 transitions. Second operand 3 states. [2020-12-22 15:09:35,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:09:35,769 INFO L93 Difference]: Finished difference Result 357437 states and 469610 transitions. [2020-12-22 15:09:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:09:35,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-22 15:09:35,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:09:36,199 INFO L225 Difference]: With dead ends: 357437 [2020-12-22 15:09:36,199 INFO L226 Difference]: Without dead ends: 204169 [2020-12-22 15:09:36,342 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 15:09:36,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204169 states. [2020-12-22 15:09:43,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204169 to 204057. [2020-12-22 15:09:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204057 states. [2020-12-22 15:09:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204057 states to 204057 states and 268208 transitions. [2020-12-22 15:09:43,862 INFO L78 Accepts]: Start accepts. Automaton has 204057 states and 268208 transitions. Word has length 96 [2020-12-22 15:09:43,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:09:43,862 INFO L481 AbstractCegarLoop]: Abstraction has 204057 states and 268208 transitions. [2020-12-22 15:09:43,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:09:43,863 INFO L276 IsEmpty]: Start isEmpty. Operand 204057 states and 268208 transitions. [2020-12-22 15:09:43,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-22 15:09:43,867 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:09:43,868 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:43,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:09:43,868 INFO L429 AbstractCegarLoop]: === Iteration 9 === [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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:09:43,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:09:43,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1208647144, now seen corresponding path program 1 times [2020-12-22 15:09:43,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:09:43,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964683108] [2020-12-22 15:09:43,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:09:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:09:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 15:09:44,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964683108] [2020-12-22 15:09:44,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:09:44,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:09:44,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989220320] [2020-12-22 15:09:44,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:09:44,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:09:44,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:09:44,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:09:44,519 INFO L87 Difference]: Start difference. First operand 204057 states and 268208 transitions. Second operand 3 states. [2020-12-22 15:09:52,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:09:52,945 INFO L93 Difference]: Finished difference Result 408101 states and 536402 transitions. [2020-12-22 15:09:52,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:09:52,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-12-22 15:09:52,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:09:53,314 INFO L225 Difference]: With dead ends: 408101 [2020-12-22 15:09:53,314 INFO L226 Difference]: Without dead ends: 204057 [2020-12-22 15:09:53,481 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 15:09:53,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204057 states. [2020-12-22 15:10:03,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204057 to 204057. [2020-12-22 15:10:03,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204057 states. [2020-12-22 15:10:03,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204057 states to 204057 states and 268176 transitions. [2020-12-22 15:10:03,786 INFO L78 Accepts]: Start accepts. Automaton has 204057 states and 268176 transitions. Word has length 120 [2020-12-22 15:10:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:10:03,787 INFO L481 AbstractCegarLoop]: Abstraction has 204057 states and 268176 transitions. [2020-12-22 15:10:03,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:10:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 204057 states and 268176 transitions. [2020-12-22 15:10:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 15:10:03,799 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:10:03,800 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:03,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:10:03,804 INFO L429 AbstractCegarLoop]: === Iteration 10 === [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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:10:03,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:10:03,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1594500846, now seen corresponding path program 1 times [2020-12-22 15:10:03,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:10:03,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931010717] [2020-12-22 15:10:03,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:10:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:10:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 15:10:04,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931010717] [2020-12-22 15:10:04,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:10:04,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:10:04,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280509561] [2020-12-22 15:10:04,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:10:04,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:10:04,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:10:04,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:10:04,346 INFO L87 Difference]: Start difference. First operand 204057 states and 268176 transitions. Second operand 3 states. [2020-12-22 15:10:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:10:12,894 INFO L93 Difference]: Finished difference Result 408133 states and 536402 transitions. [2020-12-22 15:10:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:10:12,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 15:10:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:10:13,275 INFO L225 Difference]: With dead ends: 408133 [2020-12-22 15:10:13,275 INFO L226 Difference]: Without dead ends: 204089 [2020-12-22 15:10:13,450 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 15:10:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204089 states. [2020-12-22 15:10:20,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204089 to 204089. [2020-12-22 15:10:20,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204089 states. [2020-12-22 15:10:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204089 states to 204089 states and 268208 transitions. [2020-12-22 15:10:21,299 INFO L78 Accepts]: Start accepts. Automaton has 204089 states and 268208 transitions. Word has length 124 [2020-12-22 15:10:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:10:21,301 INFO L481 AbstractCegarLoop]: Abstraction has 204089 states and 268208 transitions. [2020-12-22 15:10:21,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:10:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 204089 states and 268208 transitions. [2020-12-22 15:10:21,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 15:10:21,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:10:21,312 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:21,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:10:21,317 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:10:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:10:21,318 INFO L82 PathProgramCache]: Analyzing trace with hash -207715436, now seen corresponding path program 1 times [2020-12-22 15:10:21,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:10:21,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457223253] [2020-12-22 15:10:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:10:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:10:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 15:10:21,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457223253] [2020-12-22 15:10:21,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:10:21,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:10:21,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446916918] [2020-12-22 15:10:21,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:10:21,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:10:21,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:10:21,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:10:21,904 INFO L87 Difference]: Start difference. First operand 204089 states and 268208 transitions. Second operand 3 states. [2020-12-22 15:10:30,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:10:30,281 INFO L93 Difference]: Finished difference Result 408197 states and 536466 transitions. [2020-12-22 15:10:30,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:10:30,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 15:10:30,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:10:30,657 INFO L225 Difference]: With dead ends: 408197 [2020-12-22 15:10:30,657 INFO L226 Difference]: Without dead ends: 204121 [2020-12-22 15:10:30,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 15:10:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204121 states. [2020-12-22 15:10:38,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204121 to 204121. [2020-12-22 15:10:38,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204121 states. [2020-12-22 15:10:38,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204121 states to 204121 states and 268240 transitions. [2020-12-22 15:10:38,511 INFO L78 Accepts]: Start accepts. Automaton has 204121 states and 268240 transitions. Word has length 124 [2020-12-22 15:10:38,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:10:38,511 INFO L481 AbstractCegarLoop]: Abstraction has 204121 states and 268240 transitions. [2020-12-22 15:10:38,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:10:38,511 INFO L276 IsEmpty]: Start isEmpty. Operand 204121 states and 268240 transitions. [2020-12-22 15:10:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-12-22 15:10:38,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:10:38,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:10:38,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:10:38,517 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.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 15:10:38,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:10:38,517 INFO L82 PathProgramCache]: Analyzing trace with hash 251217834, now seen corresponding path program 1 times [2020-12-22 15:10:38,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:10:38,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536940314] [2020-12-22 15:10:38,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:10:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:10:39,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:10:39,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536940314] [2020-12-22 15:10:39,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:10:39,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:10:39,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318101137] [2020-12-22 15:10:39,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:10:39,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:10:39,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:10:39,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:10:39,036 INFO L87 Difference]: Start difference. First operand 204121 states and 268240 transitions. Second operand 4 states.