/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-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:30:18,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:30:18,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:30:18,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:30:18,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:30:18,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:30:18,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:30:18,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:30:18,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:30:18,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:30:18,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:30:18,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:30:18,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:30:18,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:30:18,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:30:18,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:30:18,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:30:18,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:30:18,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:30:18,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:30:18,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:30:18,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:30:18,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:30:18,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:30:18,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 12:30:18,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 12:30:18,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 12:30:18,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 12:30:18,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 12:30:18,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 12:30:18,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:30:18,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:30:18,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:30:18,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:30:18,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:30:18,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:30:18,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:30:18,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:30:18,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:30:18,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:30:18,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:30:18,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:30:18,627 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:30:18,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:30:18,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:30:18,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:30:18,633 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:30:18,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:30:18,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:30:18,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:30:18,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:30:18,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:30:18,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:30:18,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:30:18,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:30:18,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:30:18,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:30:18,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:30:18,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:30:18,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:30:18,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:30:18,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:30:18,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:30:18,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:30:18,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:30:18,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:30:18,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:30:18,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:30:19,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:30:19,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:30:19,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:30:19,112 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:30:19,113 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:30:19,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2020-12-22 12:30:19,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5b26255/8875ecda1b4f4015b4d6bee28fa02fbb/FLAGf5d602bbf [2020-12-22 12:30:20,301 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:30:20,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2020-12-22 12:30:20,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5b26255/8875ecda1b4f4015b4d6bee28fa02fbb/FLAGf5d602bbf [2020-12-22 12:30:20,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc5b26255/8875ecda1b4f4015b4d6bee28fa02fbb [2020-12-22 12:30:20,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:30:20,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:30:20,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:30:20,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:30:20,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:30:20,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:30:20" (1/1) ... [2020-12-22 12:30:20,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69862e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:20, skipping insertion in model container [2020-12-22 12:30:20,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:30:20" (1/1) ... [2020-12-22 12:30:20,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:30:20,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:30:24,558 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-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i[346041,346054] [2020-12-22 12:30:24,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:30:24,796 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:30:25,635 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-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i[346041,346054] [2020-12-22 12:30:25,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:30:26,802 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:30:26,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26 WrapperNode [2020-12-22 12:30:26,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:30:26,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:30:26,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:30:26,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:30:26,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:30:27,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:30:27,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:30:27,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:30:27,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (1/1) ... [2020-12-22 12:30:27,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:30:27,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:30:27,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:30:27,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:30:27,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (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 12:30:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 12:30:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:30:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 12:30:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 12:30:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:30:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 12:30:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 12:30:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 12:30:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:30:27,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:30:27,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 12:30:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 12:30:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:30:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:30:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:30:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:30:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:34:18,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:34:18,404 INFO L299 CfgBuilder]: Removed 469 assume(true) statements. [2020-12-22 12:34:18,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:34:18 BoogieIcfgContainer [2020-12-22 12:34:18,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:34:18,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:34:18,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:34:18,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:34:18,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:30:20" (1/3) ... [2020-12-22 12:34:18,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d66732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:34:18, skipping insertion in model container [2020-12-22 12:34:18,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:26" (2/3) ... [2020-12-22 12:34:18,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d66732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:34:18, skipping insertion in model container [2020-12-22 12:34:18,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:34:18" (3/3) ... [2020-12-22 12:34:18,418 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2020-12-22 12:34:18,425 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:34:18,431 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-12-22 12:34:18,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-12-22 12:34:18,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:34:18,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:34:18,486 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:34:18,486 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:34:18,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:34:18,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:34:18,487 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:34:18,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:34:18,517 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states. [2020-12-22 12:34:18,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 12:34:18,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:18,529 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] [2020-12-22 12:34:18,529 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:18,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:18,536 INFO L82 PathProgramCache]: Analyzing trace with hash -864054196, now seen corresponding path program 1 times [2020-12-22 12:34:18,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:18,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545057316] [2020-12-22 12:34:18,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:19,738 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 12:34:19,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545057316] [2020-12-22 12:34:19,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:19,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 12:34:19,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307140018] [2020-12-22 12:34:19,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 12:34:19,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:19,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 12:34:19,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 12:34:19,766 INFO L87 Difference]: Start difference. First operand 669 states. Second operand 2 states. [2020-12-22 12:34:19,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:19,867 INFO L93 Difference]: Finished difference Result 1335 states and 1964 transitions. [2020-12-22 12:34:19,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 12:34:19,869 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-12-22 12:34:19,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:19,900 INFO L225 Difference]: With dead ends: 1335 [2020-12-22 12:34:19,901 INFO L226 Difference]: Without dead ends: 665 [2020-12-22 12:34:19,909 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 12:34:19,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-12-22 12:34:19,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2020-12-22 12:34:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2020-12-22 12:34:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 951 transitions. [2020-12-22 12:34:20,004 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 951 transitions. Word has length 51 [2020-12-22 12:34:20,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:20,005 INFO L481 AbstractCegarLoop]: Abstraction has 665 states and 951 transitions. [2020-12-22 12:34:20,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 12:34:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 951 transitions. [2020-12-22 12:34:20,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 12:34:20,007 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:20,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:20,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:34:20,008 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:20,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:20,009 INFO L82 PathProgramCache]: Analyzing trace with hash 867211150, now seen corresponding path program 1 times [2020-12-22 12:34:20,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:20,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10954097] [2020-12-22 12:34:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:20,948 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 12:34:20,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10954097] [2020-12-22 12:34:20,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:20,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:20,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589510566] [2020-12-22 12:34:20,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:20,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:20,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:20,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:20,956 INFO L87 Difference]: Start difference. First operand 665 states and 951 transitions. Second operand 3 states. [2020-12-22 12:34:21,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:21,258 INFO L93 Difference]: Finished difference Result 1292 states and 1863 transitions. [2020-12-22 12:34:21,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:21,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 12:34:21,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:21,269 INFO L225 Difference]: With dead ends: 1292 [2020-12-22 12:34:21,269 INFO L226 Difference]: Without dead ends: 668 [2020-12-22 12:34:21,272 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 12:34:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-12-22 12:34:21,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 667. [2020-12-22 12:34:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-12-22 12:34:21,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 952 transitions. [2020-12-22 12:34:21,309 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 952 transitions. Word has length 51 [2020-12-22 12:34:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:21,310 INFO L481 AbstractCegarLoop]: Abstraction has 667 states and 952 transitions. [2020-12-22 12:34:21,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 952 transitions. [2020-12-22 12:34:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 12:34:21,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:21,314 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] [2020-12-22 12:34:21,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:34:21,315 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:21,318 INFO L82 PathProgramCache]: Analyzing trace with hash 187152780, now seen corresponding path program 1 times [2020-12-22 12:34:21,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:21,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107250646] [2020-12-22 12:34:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:22,085 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 12:34:22,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107250646] [2020-12-22 12:34:22,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:22,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:22,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960155401] [2020-12-22 12:34:22,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:22,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:22,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:22,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:22,095 INFO L87 Difference]: Start difference. First operand 667 states and 952 transitions. Second operand 3 states. [2020-12-22 12:34:24,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:24,459 INFO L93 Difference]: Finished difference Result 667 states and 952 transitions. [2020-12-22 12:34:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:24,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 12:34:24,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:24,464 INFO L225 Difference]: With dead ends: 667 [2020-12-22 12:34:24,464 INFO L226 Difference]: Without dead ends: 657 [2020-12-22 12:34:24,465 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 12:34:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-12-22 12:34:24,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2020-12-22 12:34:24,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-12-22 12:34:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 942 transitions. [2020-12-22 12:34:24,485 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 942 transitions. Word has length 51 [2020-12-22 12:34:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:24,486 INFO L481 AbstractCegarLoop]: Abstraction has 657 states and 942 transitions. [2020-12-22 12:34:24,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 942 transitions. [2020-12-22 12:34:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 12:34:24,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:24,488 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] [2020-12-22 12:34:24,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:34:24,489 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:24,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:24,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1506769559, now seen corresponding path program 1 times [2020-12-22 12:34:24,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:24,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635080373] [2020-12-22 12:34:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:25,102 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 12:34:25,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635080373] [2020-12-22 12:34:25,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:25,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:25,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289482327] [2020-12-22 12:34:25,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:25,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:25,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:25,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:25,107 INFO L87 Difference]: Start difference. First operand 657 states and 942 transitions. Second operand 3 states. [2020-12-22 12:34:27,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:27,367 INFO L93 Difference]: Finished difference Result 657 states and 942 transitions. [2020-12-22 12:34:27,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:27,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-12-22 12:34:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:27,373 INFO L225 Difference]: With dead ends: 657 [2020-12-22 12:34:27,373 INFO L226 Difference]: Without dead ends: 655 [2020-12-22 12:34:27,374 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 12:34:27,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-12-22 12:34:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2020-12-22 12:34:27,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-12-22 12:34:27,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 940 transitions. [2020-12-22 12:34:27,396 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 940 transitions. Word has length 52 [2020-12-22 12:34:27,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:27,396 INFO L481 AbstractCegarLoop]: Abstraction has 655 states and 940 transitions. [2020-12-22 12:34:27,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:27,397 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 940 transitions. [2020-12-22 12:34:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 12:34:27,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:27,398 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] [2020-12-22 12:34:27,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 12:34:27,399 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:27,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:27,400 INFO L82 PathProgramCache]: Analyzing trace with hash -534783242, now seen corresponding path program 1 times [2020-12-22 12:34:27,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:27,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399028597] [2020-12-22 12:34:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:27,973 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 12:34:27,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399028597] [2020-12-22 12:34:27,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:27,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:27,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639153017] [2020-12-22 12:34:27,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:27,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:27,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:27,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:27,979 INFO L87 Difference]: Start difference. First operand 655 states and 940 transitions. Second operand 3 states. [2020-12-22 12:34:30,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:30,232 INFO L93 Difference]: Finished difference Result 655 states and 940 transitions. [2020-12-22 12:34:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:30,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-12-22 12:34:30,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:30,237 INFO L225 Difference]: With dead ends: 655 [2020-12-22 12:34:30,237 INFO L226 Difference]: Without dead ends: 653 [2020-12-22 12:34:30,238 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 12:34:30,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-12-22 12:34:30,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2020-12-22 12:34:30,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-12-22 12:34:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 938 transitions. [2020-12-22 12:34:30,262 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 938 transitions. Word has length 53 [2020-12-22 12:34:30,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:30,265 INFO L481 AbstractCegarLoop]: Abstraction has 653 states and 938 transitions. [2020-12-22 12:34:30,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:30,265 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 938 transitions. [2020-12-22 12:34:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 12:34:30,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:30,268 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] [2020-12-22 12:34:30,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 12:34:30,269 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:30,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:30,269 INFO L82 PathProgramCache]: Analyzing trace with hash 601589377, now seen corresponding path program 1 times [2020-12-22 12:34:30,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:30,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541802533] [2020-12-22 12:34:30,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:30,880 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 12:34:30,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541802533] [2020-12-22 12:34:30,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:30,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:30,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912155906] [2020-12-22 12:34:30,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:30,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:30,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:30,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:30,883 INFO L87 Difference]: Start difference. First operand 653 states and 938 transitions. Second operand 3 states. [2020-12-22 12:34:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:33,154 INFO L93 Difference]: Finished difference Result 653 states and 938 transitions. [2020-12-22 12:34:33,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:33,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-12-22 12:34:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:33,159 INFO L225 Difference]: With dead ends: 653 [2020-12-22 12:34:33,159 INFO L226 Difference]: Without dead ends: 651 [2020-12-22 12:34:33,160 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 12:34:33,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-12-22 12:34:33,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 651. [2020-12-22 12:34:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-12-22 12:34:33,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 936 transitions. [2020-12-22 12:34:33,184 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 936 transitions. Word has length 54 [2020-12-22 12:34:33,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:33,185 INFO L481 AbstractCegarLoop]: Abstraction has 651 states and 936 transitions. [2020-12-22 12:34:33,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:33,185 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 936 transitions. [2020-12-22 12:34:33,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 12:34:33,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:33,186 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] [2020-12-22 12:34:33,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 12:34:33,187 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:33,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1469402208, now seen corresponding path program 1 times [2020-12-22 12:34:33,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:33,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742912459] [2020-12-22 12:34:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:33,751 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 12:34:33,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742912459] [2020-12-22 12:34:33,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:33,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:33,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503762535] [2020-12-22 12:34:33,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:33,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:33,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:33,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:33,754 INFO L87 Difference]: Start difference. First operand 651 states and 936 transitions. Second operand 3 states. [2020-12-22 12:34:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:35,963 INFO L93 Difference]: Finished difference Result 651 states and 936 transitions. [2020-12-22 12:34:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:35,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-12-22 12:34:36,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:36,003 INFO L225 Difference]: With dead ends: 651 [2020-12-22 12:34:36,003 INFO L226 Difference]: Without dead ends: 644 [2020-12-22 12:34:36,004 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 12:34:36,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-12-22 12:34:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2020-12-22 12:34:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-12-22 12:34:36,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 928 transitions. [2020-12-22 12:34:36,032 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 928 transitions. Word has length 55 [2020-12-22 12:34:36,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:36,033 INFO L481 AbstractCegarLoop]: Abstraction has 644 states and 928 transitions. [2020-12-22 12:34:36,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 928 transitions. [2020-12-22 12:34:36,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 12:34:36,039 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:36,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:36,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 12:34:36,040 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:36,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:36,041 INFO L82 PathProgramCache]: Analyzing trace with hash -585540407, now seen corresponding path program 1 times [2020-12-22 12:34:36,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:36,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298680580] [2020-12-22 12:34:36,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:36,660 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 12:34:36,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298680580] [2020-12-22 12:34:36,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:36,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:36,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63550358] [2020-12-22 12:34:36,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:36,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:36,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:36,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:36,670 INFO L87 Difference]: Start difference. First operand 644 states and 928 transitions. Second operand 3 states. [2020-12-22 12:34:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:38,805 INFO L93 Difference]: Finished difference Result 1598 states and 2339 transitions. [2020-12-22 12:34:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:38,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-12-22 12:34:38,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:38,811 INFO L225 Difference]: With dead ends: 1598 [2020-12-22 12:34:38,812 INFO L226 Difference]: Without dead ends: 1003 [2020-12-22 12:34:38,813 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 12:34:38,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2020-12-22 12:34:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 999. [2020-12-22 12:34:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2020-12-22 12:34:38,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1458 transitions. [2020-12-22 12:34:38,860 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1458 transitions. Word has length 66 [2020-12-22 12:34:38,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:38,860 INFO L481 AbstractCegarLoop]: Abstraction has 999 states and 1458 transitions. [2020-12-22 12:34:38,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:38,861 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1458 transitions. [2020-12-22 12:34:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 12:34:38,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:38,862 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 12:34:38,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 12:34:38,862 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_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.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:34:38,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:38,863 INFO L82 PathProgramCache]: Analyzing trace with hash 305008732, now seen corresponding path program 1 times [2020-12-22 12:34:38,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:38,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553340822] [2020-12-22 12:34:38,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:39,500 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 12:34:39,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553340822] [2020-12-22 12:34:39,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:39,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:39,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177209684] [2020-12-22 12:34:39,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:39,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:39,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:39,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:39,503 INFO L87 Difference]: Start difference. First operand 999 states and 1458 transitions. Second operand 3 states.