/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--irda--vlsi_ir.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:03:43,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:03:43,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:03:43,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:03:43,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:03:43,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:03:43,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:03:43,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:03:43,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:03:43,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:03:43,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:03:43,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:03:43,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:03:43,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:03:43,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:03:43,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:03:43,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:03:43,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:03:43,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:03:43,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:03:43,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:03:43,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:03:43,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:03:43,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:03:43,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:03:43,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:03:43,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:03:43,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:03:43,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:03:43,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:03:43,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:03:43,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:03:43,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:03:43,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:03:43,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:03:43,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:03:43,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:03:43,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:03:43,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:03:43,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:03:43,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:03:43,639 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:03:43,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:03:43,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:03:43,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:03:43,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:03:43,703 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:03:43,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:03:43,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:03:43,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:03:43,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:03:43,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:03:43,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:03:43,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:03:43,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:03:43,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:03:43,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:03:43,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:03:43,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:03:43,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:03:43,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:03:43,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:03:43,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:03:43,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:03:43,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:03:43,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:03:43,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:03:43,709 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:03:44,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:03:44,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:03:44,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:03:44,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:03:44,167 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:03:44,168 INFO L432 ainManager$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--irda--vlsi_ir.ko-entry_point.cil.out.i [2020-12-22 15:03:44,245 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d584fa74a/9710e83a461847d2afbc8c58cfee5ee2/FLAGa6c6eb4fb [2020-12-22 15:03:45,469 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:03:45,472 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--irda--vlsi_ir.ko-entry_point.cil.out.i [2020-12-22 15:03:45,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d584fa74a/9710e83a461847d2afbc8c58cfee5ee2/FLAGa6c6eb4fb [2020-12-22 15:03:45,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d584fa74a/9710e83a461847d2afbc8c58cfee5ee2 [2020-12-22 15:03:45,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:03:45,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:03:45,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:03:45,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:03:45,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:03:45,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:45" (1/1) ... [2020-12-22 15:03:45,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24714ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:45, skipping insertion in model container [2020-12-22 15:03:45,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:45" (1/1) ... [2020-12-22 15:03:45,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:03:45,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:03:48,941 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2020-12-22 15:03:49,014 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2020-12-22 15:03:49,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:03:49,153 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:03:49,728 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--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2020-12-22 15:03:49,734 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2020-12-22 15:03:49,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:03:50,253 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:03:50,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50 WrapperNode [2020-12-22 15:03:50,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:03:50,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:03:50,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:03:50,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:03:50,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:50,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:51,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:03:51,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:03:51,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:03:51,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:03:51,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:51,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:51,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:51,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:52,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:52,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:53,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (1/1) ... [2020-12-22 15:03:53,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:03:53,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:03:53,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:03:53,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:03:53,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (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 15:03:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:03:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:03:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:03:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:03:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2020-12-22 15:03:53,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:03:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:03:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:03:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:03:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:03:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:03:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:03:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:03:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 15:03:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:03:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:03:53,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:05:01,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:05:01,936 INFO L299 CfgBuilder]: Removed 5400 assume(true) statements. [2020-12-22 15:05:01,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:05:01 BoogieIcfgContainer [2020-12-22 15:05:01,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:05:01,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:05:01,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:05:01,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:05:01,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:03:45" (1/3) ... [2020-12-22 15:05:01,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145d14e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:05:01, skipping insertion in model container [2020-12-22 15:05:01,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:50" (2/3) ... [2020-12-22 15:05:01,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145d14e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:05:01, skipping insertion in model container [2020-12-22 15:05:01,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:05:01" (3/3) ... [2020-12-22 15:05:01,954 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2020-12-22 15:05:01,961 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:05:01,969 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-22 15:05:01,994 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-22 15:05:02,043 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:05:02,043 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:05:02,043 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:05:02,044 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:05:02,044 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:05:02,044 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:05:02,044 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:05:02,044 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:05:02,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states. [2020-12-22 15:05:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 15:05:02,149 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:02,150 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] [2020-12-22 15:05:02,151 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:02,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1631980527, now seen corresponding path program 1 times [2020-12-22 15:05:02,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:02,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850852330] [2020-12-22 15:05:02,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:03,420 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 15:05:03,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850852330] [2020-12-22 15:05:03,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:03,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:05:03,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950897638] [2020-12-22 15:05:03,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:05:03,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:03,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:05:03,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:05:03,452 INFO L87 Difference]: Start difference. First operand 5212 states. Second operand 2 states. [2020-12-22 15:05:03,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:03,733 INFO L93 Difference]: Finished difference Result 10420 states and 13971 transitions. [2020-12-22 15:05:03,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:05:03,734 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 64 [2020-12-22 15:05:03,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:03,780 INFO L225 Difference]: With dead ends: 10420 [2020-12-22 15:05:03,781 INFO L226 Difference]: Without dead ends: 5146 [2020-12-22 15:05:03,796 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 15:05:03,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2020-12-22 15:05:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 5146. [2020-12-22 15:05:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5146 states. [2020-12-22 15:05:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 6815 transitions. [2020-12-22 15:05:04,041 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 6815 transitions. Word has length 64 [2020-12-22 15:05:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:04,041 INFO L481 AbstractCegarLoop]: Abstraction has 5146 states and 6815 transitions. [2020-12-22 15:05:04,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:05:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 6815 transitions. [2020-12-22 15:05:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 15:05:04,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:04,049 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] [2020-12-22 15:05:04,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:05:04,053 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:04,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1881373433, now seen corresponding path program 1 times [2020-12-22 15:05:04,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:04,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500086463] [2020-12-22 15:05:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:04,752 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 15:05:04,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500086463] [2020-12-22 15:05:04,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:04,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:04,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510379089] [2020-12-22 15:05:04,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:04,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:04,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:04,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:04,757 INFO L87 Difference]: Start difference. First operand 5146 states and 6815 transitions. Second operand 3 states. [2020-12-22 15:05:05,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:05,327 INFO L93 Difference]: Finished difference Result 12709 states and 16862 transitions. [2020-12-22 15:05:05,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:05,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 15:05:05,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:05,374 INFO L225 Difference]: With dead ends: 12709 [2020-12-22 15:05:05,374 INFO L226 Difference]: Without dead ends: 7601 [2020-12-22 15:05:05,390 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 15:05:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7601 states. [2020-12-22 15:05:05,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7601 to 7559. [2020-12-22 15:05:05,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7559 states. [2020-12-22 15:05:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7559 states to 7559 states and 10050 transitions. [2020-12-22 15:05:05,641 INFO L78 Accepts]: Start accepts. Automaton has 7559 states and 10050 transitions. Word has length 64 [2020-12-22 15:05:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:05,642 INFO L481 AbstractCegarLoop]: Abstraction has 7559 states and 10050 transitions. [2020-12-22 15:05:05,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:05,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7559 states and 10050 transitions. [2020-12-22 15:05:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 15:05:05,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:05,647 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] [2020-12-22 15:05:05,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:05:05,648 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:05,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:05,649 INFO L82 PathProgramCache]: Analyzing trace with hash -443608998, now seen corresponding path program 1 times [2020-12-22 15:05:05,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:05,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178622022] [2020-12-22 15:05:05,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:06,228 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 15:05:06,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178622022] [2020-12-22 15:05:06,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:06,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:06,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325695239] [2020-12-22 15:05:06,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:05:06,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:06,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:05:06,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:05:06,249 INFO L87 Difference]: Start difference. First operand 7559 states and 10050 transitions. Second operand 4 states. [2020-12-22 15:05:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:07,336 INFO L93 Difference]: Finished difference Result 31767 states and 42119 transitions. [2020-12-22 15:05:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:05:07,337 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-12-22 15:05:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:07,471 INFO L225 Difference]: With dead ends: 31767 [2020-12-22 15:05:07,472 INFO L226 Difference]: Without dead ends: 24246 [2020-12-22 15:05:07,496 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 15:05:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24246 states. [2020-12-22 15:05:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24246 to 12431. [2020-12-22 15:05:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12431 states. [2020-12-22 15:05:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12431 states to 12431 states and 16490 transitions. [2020-12-22 15:05:08,343 INFO L78 Accepts]: Start accepts. Automaton has 12431 states and 16490 transitions. Word has length 75 [2020-12-22 15:05:08,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:08,344 INFO L481 AbstractCegarLoop]: Abstraction has 12431 states and 16490 transitions. [2020-12-22 15:05:08,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:05:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 12431 states and 16490 transitions. [2020-12-22 15:05:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 15:05:08,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:08,349 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] [2020-12-22 15:05:08,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:05:08,350 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:08,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:08,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1060255281, now seen corresponding path program 1 times [2020-12-22 15:05:08,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:08,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231205950] [2020-12-22 15:05:08,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:09,070 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 15:05:09,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231205950] [2020-12-22 15:05:09,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:09,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:09,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174617217] [2020-12-22 15:05:09,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:05:09,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:09,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:05:09,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:05:09,080 INFO L87 Difference]: Start difference. First operand 12431 states and 16490 transitions. Second operand 4 states. [2020-12-22 15:05:10,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:10,667 INFO L93 Difference]: Finished difference Result 56125 states and 74319 transitions. [2020-12-22 15:05:10,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:05:10,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-12-22 15:05:10,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:10,794 INFO L225 Difference]: With dead ends: 56125 [2020-12-22 15:05:10,795 INFO L226 Difference]: Without dead ends: 43732 [2020-12-22 15:05:10,834 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 15:05:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43732 states. [2020-12-22 15:05:11,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43732 to 24142. [2020-12-22 15:05:11,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24142 states. [2020-12-22 15:05:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24142 states to 24142 states and 32032 transitions. [2020-12-22 15:05:11,909 INFO L78 Accepts]: Start accepts. Automaton has 24142 states and 32032 transitions. Word has length 76 [2020-12-22 15:05:11,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:11,910 INFO L481 AbstractCegarLoop]: Abstraction has 24142 states and 32032 transitions. [2020-12-22 15:05:11,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:05:11,910 INFO L276 IsEmpty]: Start isEmpty. Operand 24142 states and 32032 transitions. [2020-12-22 15:05:11,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 15:05:11,914 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:11,915 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] [2020-12-22 15:05:11,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:05:11,915 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:11,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1298547508, now seen corresponding path program 1 times [2020-12-22 15:05:11,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:11,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652512151] [2020-12-22 15:05:11,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:12,607 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 15:05:12,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652512151] [2020-12-22 15:05:12,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:12,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:12,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689090603] [2020-12-22 15:05:12,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:05:12,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:12,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:05:12,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:05:12,610 INFO L87 Difference]: Start difference. First operand 24142 states and 32032 transitions. Second operand 4 states. [2020-12-22 15:05:12,900 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-22 15:05:15,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:15,733 INFO L93 Difference]: Finished difference Result 110114 states and 145843 transitions. [2020-12-22 15:05:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:05:15,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2020-12-22 15:05:15,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:16,135 INFO L225 Difference]: With dead ends: 110114 [2020-12-22 15:05:16,136 INFO L226 Difference]: Without dead ends: 86010 [2020-12-22 15:05:16,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:05:16,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86010 states. [2020-12-22 15:05:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86010 to 46917. [2020-12-22 15:05:18,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46917 states. [2020-12-22 15:05:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46917 states to 46917 states and 62234 transitions. [2020-12-22 15:05:18,421 INFO L78 Accepts]: Start accepts. Automaton has 46917 states and 62234 transitions. Word has length 77 [2020-12-22 15:05:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:18,422 INFO L481 AbstractCegarLoop]: Abstraction has 46917 states and 62234 transitions. [2020-12-22 15:05:18,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:05:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 46917 states and 62234 transitions. [2020-12-22 15:05:18,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 15:05:18,426 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:18,426 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] [2020-12-22 15:05:18,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:05:18,427 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:18,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1406991017, now seen corresponding path program 1 times [2020-12-22 15:05:18,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:18,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397938309] [2020-12-22 15:05:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:19,066 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 15:05:19,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397938309] [2020-12-22 15:05:19,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:19,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:19,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552827459] [2020-12-22 15:05:19,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:05:19,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:19,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:05:19,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:05:19,070 INFO L87 Difference]: Start difference. First operand 46917 states and 62234 transitions. Second operand 4 states. [2020-12-22 15:05:24,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:24,060 INFO L93 Difference]: Finished difference Result 216143 states and 286229 transitions. [2020-12-22 15:05:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:05:24,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-22 15:05:24,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:24,489 INFO L225 Difference]: With dead ends: 216143 [2020-12-22 15:05:24,491 INFO L226 Difference]: Without dead ends: 169264 [2020-12-22 15:05:24,661 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 15:05:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169264 states. [2020-12-22 15:05:28,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169264 to 91172. [2020-12-22 15:05:28,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91172 states. [2020-12-22 15:05:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91172 states to 91172 states and 120872 transitions. [2020-12-22 15:05:28,693 INFO L78 Accepts]: Start accepts. Automaton has 91172 states and 120872 transitions. Word has length 78 [2020-12-22 15:05:28,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:28,697 INFO L481 AbstractCegarLoop]: Abstraction has 91172 states and 120872 transitions. [2020-12-22 15:05:28,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:05:28,698 INFO L276 IsEmpty]: Start isEmpty. Operand 91172 states and 120872 transitions. [2020-12-22 15:05:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 15:05:28,708 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:28,708 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:05:28,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:05:28,709 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:28,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:28,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1949710532, now seen corresponding path program 1 times [2020-12-22 15:05:28,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:28,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428912247] [2020-12-22 15:05:28,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 15:05:29,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428912247] [2020-12-22 15:05:29,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:29,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:05:29,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747175402] [2020-12-22 15:05:29,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:05:29,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:29,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:05:29,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:05:29,214 INFO L87 Difference]: Start difference. First operand 91172 states and 120872 transitions. Second operand 5 states. [2020-12-22 15:05:36,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:36,506 INFO L93 Difference]: Finished difference Result 307374 states and 407145 transitions. [2020-12-22 15:05:36,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:05:36,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-12-22 15:05:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:37,178 INFO L225 Difference]: With dead ends: 307374 [2020-12-22 15:05:37,178 INFO L226 Difference]: Without dead ends: 216240 [2020-12-22 15:05:37,319 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 15:05:37,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216240 states. [2020-12-22 15:05:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216240 to 91252. [2020-12-22 15:05:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91252 states. [2020-12-22 15:05:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91252 states to 91252 states and 120952 transitions. [2020-12-22 15:05:41,671 INFO L78 Accepts]: Start accepts. Automaton has 91252 states and 120952 transitions. Word has length 83 [2020-12-22 15:05:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:41,671 INFO L481 AbstractCegarLoop]: Abstraction has 91252 states and 120952 transitions. [2020-12-22 15:05:41,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:05:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 91252 states and 120952 transitions. [2020-12-22 15:05:41,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-22 15:05:41,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:41,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:41,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:05:41,676 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:41,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:41,677 INFO L82 PathProgramCache]: Analyzing trace with hash 182111944, now seen corresponding path program 1 times [2020-12-22 15:05:41,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:41,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450638270] [2020-12-22 15:05:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:42,112 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 15:05:42,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450638270] [2020-12-22 15:05:42,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:42,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:42,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874539416] [2020-12-22 15:05:42,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:42,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:42,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:42,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:42,115 INFO L87 Difference]: Start difference. First operand 91252 states and 120952 transitions. Second operand 3 states. [2020-12-22 15:05:47,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:47,894 INFO L93 Difference]: Finished difference Result 239258 states and 317775 transitions. [2020-12-22 15:05:47,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:47,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-12-22 15:05:47,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:48,148 INFO L225 Difference]: With dead ends: 239258 [2020-12-22 15:05:48,148 INFO L226 Difference]: Without dead ends: 148044 [2020-12-22 15:05:48,257 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 15:05:48,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148044 states. [2020-12-22 15:05:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148044 to 147218. [2020-12-22 15:05:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147218 states. [2020-12-22 15:05:53,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147218 states to 147218 states and 195701 transitions. [2020-12-22 15:05:53,963 INFO L78 Accepts]: Start accepts. Automaton has 147218 states and 195701 transitions. Word has length 100 [2020-12-22 15:05:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:53,963 INFO L481 AbstractCegarLoop]: Abstraction has 147218 states and 195701 transitions. [2020-12-22 15:05:53,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 147218 states and 195701 transitions. [2020-12-22 15:05:53,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-12-22 15:05:53,967 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:53,967 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:53,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:05:53,968 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:53,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:53,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1712229894, now seen corresponding path program 1 times [2020-12-22 15:05:53,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:53,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437979858] [2020-12-22 15:05:53,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:05:54,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437979858] [2020-12-22 15:05:54,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:54,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:54,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498887777] [2020-12-22 15:05:54,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:54,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:54,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:54,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:54,381 INFO L87 Difference]: Start difference. First operand 147218 states and 195701 transitions. Second operand 3 states. [2020-12-22 15:06:00,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:00,108 INFO L93 Difference]: Finished difference Result 295006 states and 392255 transitions. [2020-12-22 15:06:00,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:06:00,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-12-22 15:06:00,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:00,529 INFO L225 Difference]: With dead ends: 295006 [2020-12-22 15:06:00,529 INFO L226 Difference]: Without dead ends: 147826 [2020-12-22 15:06:00,704 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 15:06:00,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147826 states. [2020-12-22 15:06:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147826 to 147698. [2020-12-22 15:06:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147698 states. [2020-12-22 15:06:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147698 states to 147698 states and 196405 transitions. [2020-12-22 15:06:06,440 INFO L78 Accepts]: Start accepts. Automaton has 147698 states and 196405 transitions. Word has length 125 [2020-12-22 15:06:06,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:06:06,440 INFO L481 AbstractCegarLoop]: Abstraction has 147698 states and 196405 transitions. [2020-12-22 15:06:06,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:06:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 147698 states and 196405 transitions. [2020-12-22 15:06:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-22 15:06:06,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:06,444 INFO L422 BasicCegarLoop]: trace histogram [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, 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 15:06:06,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:06:06,446 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:06,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:06,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1800796997, now seen corresponding path program 1 times [2020-12-22 15:06:06,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:06,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818406869] [2020-12-22 15:06:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:06:07,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818406869] [2020-12-22 15:06:07,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800772791] [2020-12-22 15:06:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:06:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:10,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 4475 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:06:10,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:06:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 15:06:10,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:06:10,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 15:06:10,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101270307] [2020-12-22 15:06:10,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:06:10,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:10,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:06:10,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:06:10,294 INFO L87 Difference]: Start difference. First operand 147698 states and 196405 transitions. Second operand 3 states. [2020-12-22 15:06:23,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:23,475 INFO L93 Difference]: Finished difference Result 438090 states and 582633 transitions. [2020-12-22 15:06:23,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:06:23,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-12-22 15:06:23,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:24,295 INFO L225 Difference]: With dead ends: 438090 [2020-12-22 15:06:24,296 INFO L226 Difference]: Without dead ends: 290430 [2020-12-22 15:06:24,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:06:24,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290430 states. [2020-12-22 15:06:35,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290430 to 290398. [2020-12-22 15:06:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290398 states. [2020-12-22 15:06:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290398 states to 290398 states and 385807 transitions. [2020-12-22 15:06:35,949 INFO L78 Accepts]: Start accepts. Automaton has 290398 states and 385807 transitions. Word has length 137 [2020-12-22 15:06:35,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:06:35,949 INFO L481 AbstractCegarLoop]: Abstraction has 290398 states and 385807 transitions. [2020-12-22 15:06:35,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:06:35,949 INFO L276 IsEmpty]: Start isEmpty. Operand 290398 states and 385807 transitions. [2020-12-22 15:06:35,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-22 15:06:35,953 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:35,953 INFO L422 BasicCegarLoop]: trace histogram [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, 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 15:06:36,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 15:06:36,167 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:36,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:36,168 INFO L82 PathProgramCache]: Analyzing trace with hash 131065660, now seen corresponding path program 1 times [2020-12-22 15:06:36,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:36,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905761115] [2020-12-22 15:06:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:06:37,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905761115] [2020-12-22 15:06:37,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441240229] [2020-12-22 15:06:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:06:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:39,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 4476 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:06:39,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:06:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 15:06:39,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:06:39,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:06:39,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462913586] [2020-12-22 15:06:39,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:06:39,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:39,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:06:39,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:06:39,994 INFO L87 Difference]: Start difference. First operand 290398 states and 385807 transitions. Second operand 3 states. [2020-12-22 15:06:57,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:57,448 INFO L93 Difference]: Finished difference Result 690100 states and 918070 transitions. [2020-12-22 15:06:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:06:57,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-12-22 15:06:57,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:58,583 INFO L225 Difference]: With dead ends: 690100 [2020-12-22 15:06:58,584 INFO L226 Difference]: Without dead ends: 399740 [2020-12-22 15:06:58,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:06:59,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399740 states.