/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/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:29:57,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:29:57,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:29:57,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:29:57,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:29:57,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:29:57,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:29:57,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:29:57,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:29:57,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:29:57,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:29:57,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:29:57,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:29:57,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:29:57,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:29:57,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:29:57,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:29:57,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:29:57,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:29:57,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:29:57,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:29:57,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:29:57,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:29:57,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:29:57,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 12:29:57,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:29:57,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:29:57,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:29:57,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:29:57,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:29:57,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:29:57,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:29:57,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:29:57,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:29:57,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:29:57,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:29:57,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:29:57,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:29:57,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:29:57,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:29:57,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:29:57,856 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:29:57,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:29:57,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:29:57,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:29:57,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:29:57,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:29:57,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:29:57,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:29:57,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:29:57,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:29:57,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:29:57,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:29:57,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:29:57,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:29:57,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:29:57,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:29:57,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:29:57,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:29:57,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:29:57,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:29:57,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:29:57,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:29:58,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:29:58,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:29:58,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:29:58,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:29:58,342 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:29:58,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i [2020-12-22 12:29:58,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1387db90/b807e495d93f4b57a38f2596e821166b/FLAG68cdf2051 [2020-12-22 12:29:59,550 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:29:59,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i [2020-12-22 12:29:59,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1387db90/b807e495d93f4b57a38f2596e821166b/FLAG68cdf2051 [2020-12-22 12:29:59,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1387db90/b807e495d93f4b57a38f2596e821166b [2020-12-22 12:29:59,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:29:59,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:29:59,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:29:59,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:29:59,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:29:59,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:29:59" (1/1) ... [2020-12-22 12:29:59,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595e05ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:29:59, skipping insertion in model container [2020-12-22 12:29:59,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:29:59" (1/1) ... [2020-12-22 12:29:59,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:30:00,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:30:03,947 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/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i[340889,340902] [2020-12-22 12:30:04,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:30:04,229 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:30:04,962 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/main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i[340889,340902] [2020-12-22 12:30:04,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:30:05,951 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:30:05,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05 WrapperNode [2020-12-22 12:30:05,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:30:05,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:30:05,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:30:05,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:30:05,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:30:06,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:30:06,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:30:06,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:30:06,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (1/1) ... [2020-12-22 12:30:06,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:30:06,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:30:06,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:30:06,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:30:06,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (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 12:30:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 12:30:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:30:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 12:30:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 12:30:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:30:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 12:30:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 12:30:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:30:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:30:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 12:30:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 12:30:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:30:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:30:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:30:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:30:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:33:59,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:33:59,942 INFO L299 CfgBuilder]: Removed 344 assume(true) statements. [2020-12-22 12:33:59,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:33:59 BoogieIcfgContainer [2020-12-22 12:33:59,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:33:59,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:33:59,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:33:59,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:33:59,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:29:59" (1/3) ... [2020-12-22 12:33:59,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0daa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:33:59, skipping insertion in model container [2020-12-22 12:33:59,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05" (2/3) ... [2020-12-22 12:33:59,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0daa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:33:59, skipping insertion in model container [2020-12-22 12:33:59,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:33:59" (3/3) ... [2020-12-22 12:33:59,956 INFO L111 eAbstractionObserver]: Analyzing ICFG main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i [2020-12-22 12:33:59,962 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:33:59,969 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-12-22 12:33:59,987 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-12-22 12:34:00,021 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:34:00,022 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:34:00,022 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:34:00,022 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:34:00,022 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:34:00,022 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:34:00,022 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:34:00,023 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:34:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states. [2020-12-22 12:34:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 12:34:00,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:00,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 12:34:00,067 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 12:34:00,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:00,073 INFO L82 PathProgramCache]: Analyzing trace with hash 936147530, now seen corresponding path program 1 times [2020-12-22 12:34:00,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:00,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792989400] [2020-12-22 12:34:00,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:01,249 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 12:34:01,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792989400] [2020-12-22 12:34:01,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:01,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:01,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951752008] [2020-12-22 12:34:01,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:01,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:01,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:01,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:01,277 INFO L87 Difference]: Start difference. First operand 448 states. Second operand 3 states. [2020-12-22 12:34:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:04,031 INFO L93 Difference]: Finished difference Result 878 states and 1274 transitions. [2020-12-22 12:34:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:04,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 12:34:04,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:04,066 INFO L225 Difference]: With dead ends: 878 [2020-12-22 12:34:04,066 INFO L226 Difference]: Without dead ends: 428 [2020-12-22 12:34:04,080 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 12:34:04,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-12-22 12:34:04,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2020-12-22 12:34:04,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-12-22 12:34:04,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 607 transitions. [2020-12-22 12:34:04,162 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 607 transitions. Word has length 6 [2020-12-22 12:34:04,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:04,163 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 607 transitions. [2020-12-22 12:34:04,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 607 transitions. [2020-12-22 12:34:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 12:34:04,164 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:04,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:04,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:34:04,165 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 12:34:04,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:04,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1044197774, now seen corresponding path program 1 times [2020-12-22 12:34:04,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:04,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526243719] [2020-12-22 12:34:04,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:04,771 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 12:34:04,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526243719] [2020-12-22 12:34:04,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:04,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:04,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444928938] [2020-12-22 12:34:04,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:04,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:04,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:04,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:04,777 INFO L87 Difference]: Start difference. First operand 428 states and 607 transitions. Second operand 3 states. [2020-12-22 12:34:07,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:07,039 INFO L93 Difference]: Finished difference Result 428 states and 607 transitions. [2020-12-22 12:34:07,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:07,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 12:34:07,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:07,043 INFO L225 Difference]: With dead ends: 428 [2020-12-22 12:34:07,043 INFO L226 Difference]: Without dead ends: 426 [2020-12-22 12:34:07,045 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 12:34:07,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-12-22 12:34:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-12-22 12:34:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-12-22 12:34:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 605 transitions. [2020-12-22 12:34:07,103 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 605 transitions. Word has length 7 [2020-12-22 12:34:07,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:07,103 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 605 transitions. [2020-12-22 12:34:07,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:07,104 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 605 transitions. [2020-12-22 12:34:07,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 12:34:07,108 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:07,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:07,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:34:07,109 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 12:34:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:07,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1989607252, now seen corresponding path program 1 times [2020-12-22 12:34:07,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:07,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67406007] [2020-12-22 12:34:07,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:07,659 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 12:34:07,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67406007] [2020-12-22 12:34:07,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:07,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:07,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523429957] [2020-12-22 12:34:07,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:07,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:07,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:07,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:07,670 INFO L87 Difference]: Start difference. First operand 426 states and 605 transitions. Second operand 3 states. [2020-12-22 12:34:09,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:09,911 INFO L93 Difference]: Finished difference Result 426 states and 605 transitions. [2020-12-22 12:34:09,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:09,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 12:34:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:09,915 INFO L225 Difference]: With dead ends: 426 [2020-12-22 12:34:09,915 INFO L226 Difference]: Without dead ends: 424 [2020-12-22 12:34:09,916 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 12:34:09,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-12-22 12:34:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2020-12-22 12:34:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-12-22 12:34:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 603 transitions. [2020-12-22 12:34:09,939 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 603 transitions. Word has length 8 [2020-12-22 12:34:09,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:09,939 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 603 transitions. [2020-12-22 12:34:09,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:09,940 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 603 transitions. [2020-12-22 12:34:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 12:34:09,941 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:09,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:09,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:34:09,941 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 12:34:09,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:09,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1548282556, now seen corresponding path program 1 times [2020-12-22 12:34:09,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:09,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908024619] [2020-12-22 12:34:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:10,503 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 12:34:10,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908024619] [2020-12-22 12:34:10,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:10,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:10,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254160437] [2020-12-22 12:34:10,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:10,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:10,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:10,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:10,507 INFO L87 Difference]: Start difference. First operand 424 states and 603 transitions. Second operand 3 states. [2020-12-22 12:34:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:12,734 INFO L93 Difference]: Finished difference Result 424 states and 603 transitions. [2020-12-22 12:34:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:12,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 12:34:12,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:12,740 INFO L225 Difference]: With dead ends: 424 [2020-12-22 12:34:12,740 INFO L226 Difference]: Without dead ends: 422 [2020-12-22 12:34:12,741 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 12:34:12,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-22 12:34:12,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2020-12-22 12:34:12,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-12-22 12:34:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 601 transitions. [2020-12-22 12:34:12,765 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 601 transitions. Word has length 9 [2020-12-22 12:34:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:12,765 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 601 transitions. [2020-12-22 12:34:12,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 601 transitions. [2020-12-22 12:34:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 12:34:12,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:12,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:12,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 12:34:12,767 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 12:34:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:12,767 INFO L82 PathProgramCache]: Analyzing trace with hash 752118878, now seen corresponding path program 1 times [2020-12-22 12:34:12,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:12,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926117000] [2020-12-22 12:34:12,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:13,304 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 12:34:13,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926117000] [2020-12-22 12:34:13,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:13,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:13,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554981478] [2020-12-22 12:34:13,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:13,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:13,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:13,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:13,310 INFO L87 Difference]: Start difference. First operand 422 states and 601 transitions. Second operand 3 states. [2020-12-22 12:34:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:15,518 INFO L93 Difference]: Finished difference Result 422 states and 601 transitions. [2020-12-22 12:34:15,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:15,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 12:34:15,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:15,552 INFO L225 Difference]: With dead ends: 422 [2020-12-22 12:34:15,553 INFO L226 Difference]: Without dead ends: 415 [2020-12-22 12:34:15,553 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 12:34:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-12-22 12:34:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2020-12-22 12:34:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-12-22 12:34:15,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 594 transitions. [2020-12-22 12:34:15,574 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 594 transitions. Word has length 10 [2020-12-22 12:34:15,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:15,575 INFO L481 AbstractCegarLoop]: Abstraction has 415 states and 594 transitions. [2020-12-22 12:34:15,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:15,575 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 594 transitions. [2020-12-22 12:34:15,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 12:34:15,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:15,577 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] [2020-12-22 12:34:15,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 12:34:15,578 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 12:34:15,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:15,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1686685008, now seen corresponding path program 1 times [2020-12-22 12:34:15,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:15,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253782383] [2020-12-22 12:34:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:16,293 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 12:34:16,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253782383] [2020-12-22 12:34:16,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:16,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:16,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757799582] [2020-12-22 12:34:16,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:34:16,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:16,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:34:16,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:34:16,298 INFO L87 Difference]: Start difference. First operand 415 states and 594 transitions. Second operand 4 states. [2020-12-22 12:34:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:18,672 INFO L93 Difference]: Finished difference Result 832 states and 1192 transitions. [2020-12-22 12:34:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 12:34:18,673 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-22 12:34:18,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:18,676 INFO L225 Difference]: With dead ends: 832 [2020-12-22 12:34:18,677 INFO L226 Difference]: Without dead ends: 419 [2020-12-22 12:34:18,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:34:18,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-12-22 12:34:18,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 416. [2020-12-22 12:34:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-12-22 12:34:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 595 transitions. [2020-12-22 12:34:18,707 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 595 transitions. Word has length 22 [2020-12-22 12:34:18,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:18,707 INFO L481 AbstractCegarLoop]: Abstraction has 416 states and 595 transitions. [2020-12-22 12:34:18,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 12:34:18,707 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 595 transitions. [2020-12-22 12:34:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 12:34:18,709 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:18,710 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] [2020-12-22 12:34:18,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 12:34:18,710 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 12:34:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:18,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1019148295, now seen corresponding path program 1 times [2020-12-22 12:34:18,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:18,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792504094] [2020-12-22 12:34:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:19,385 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 12:34:19,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792504094] [2020-12-22 12:34:19,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:19,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:19,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698735731] [2020-12-22 12:34:19,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:19,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:19,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:19,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:19,388 INFO L87 Difference]: Start difference. First operand 416 states and 595 transitions. Second operand 3 states.