/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:29:57,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:29:57,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:29:57,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:29:57,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:29:57,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:29:57,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:29:57,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:29:57,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:29:57,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:29:57,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:29:57,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:29:57,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:29:57,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:29:57,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:29:57,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:29:57,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:29:57,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:29:57,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:29:57,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:29:57,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:29:57,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:29:57,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:29:57,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:29:57,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 12:29:57,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:29:57,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:29:57,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:29:57,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:29:57,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:29:57,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:29:57,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:29:57,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:29:57,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:29:57,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:29:57,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:29:57,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:29:57,641 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:29:57,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:29:57,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:29:57,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:29:57,644 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:29:57,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:29:57,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:29:57,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:29:57,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:29:57,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:29:57,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:29:57,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:29:57,646 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:29:57,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:29:57,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:29:57,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:29:57,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:29:57,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:29:57,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:29:57,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:29:57,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:29:57,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:29:57,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:29:57,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:29:57,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:29:57,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:29:58,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:29:58,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:29:58,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:29:58,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:29:58,085 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:29:58,086 INFO L432 ainManager$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-1.i [2020-12-22 12:29:58,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acb986e4/7916dfe65bad45e28256e347e0613e54/FLAGd5460a848 [2020-12-22 12:29:59,409 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:29:59,410 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-1.i [2020-12-22 12:29:59,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acb986e4/7916dfe65bad45e28256e347e0613e54/FLAGd5460a848 [2020-12-22 12:29:59,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3acb986e4/7916dfe65bad45e28256e347e0613e54 [2020-12-22 12:29:59,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:29:59,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:29:59,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:29:59,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:29:59,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:29:59,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:29:59" (1/1) ... [2020-12-22 12:29:59,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af4e53c 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 12:29:59,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:29:59" (1/1) ... [2020-12-22 12:29:59,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:30:00,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:30:03,480 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-1.i[341143,341156] [2020-12-22 12:30:03,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:30:03,752 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:30:04,757 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-1.i[341143,341156] [2020-12-22 12:30:04,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:30:05,938 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:30:05,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:30:05 WrapperNode [2020-12-22 12:30:05,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:30:05,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:30:05,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:30:05,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:30:05,947 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 12:30:06,198 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 12:30:06,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:30:06,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:30:06,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:30:06,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:30:06,474 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 12:30:06,474 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 12:30:06,511 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 12:30:06,512 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 12:30:06,687 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 12:30:06,727 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 12:30:06,781 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 12:30:06,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:30:06,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:30:06,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:30:06,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:30:06,834 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 12:30:06,957 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 12:30:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:30:06,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 12:30:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 12:30:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:30:06,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 12:30:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 12:30:06,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:30:06,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:30:06,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 12:30:06,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 12:30:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:30:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:30:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:30:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:30:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:33:59,877 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:33:59,878 INFO L299 CfgBuilder]: Removed 344 assume(true) statements. [2020-12-22 12:33:59,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:33:59 BoogieIcfgContainer [2020-12-22 12:33:59,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:33:59,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:33:59,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:33:59,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:33:59,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:29:59" (1/3) ... [2020-12-22 12:33:59,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73480184 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 12:33:59,888 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 12:33:59,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73480184 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 12:33:59,889 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 12:33:59,891 INFO L111 eAbstractionObserver]: Analyzing ICFG main2_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2020-12-22 12:33:59,898 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:33:59,904 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-12-22 12:33:59,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-12-22 12:33:59,958 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:33:59,959 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:33:59,959 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:33:59,959 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:33:59,959 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:33:59,959 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:33:59,959 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:33:59,960 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:33:59,989 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states. [2020-12-22 12:33:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 12:33:59,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:33:59,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 12:33:59,997 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 12:34:00,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:00,004 INFO L82 PathProgramCache]: Analyzing trace with hash 936147530, now seen corresponding path program 1 times [2020-12-22 12:34:00,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:00,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535323667] [2020-12-22 12:34:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:01,289 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 12:34:01,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535323667] [2020-12-22 12:34:01,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:01,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:01,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957118789] [2020-12-22 12:34:01,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:01,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:01,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:01,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:01,318 INFO L87 Difference]: Start difference. First operand 448 states. Second operand 3 states. [2020-12-22 12:34:03,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:03,874 INFO L93 Difference]: Finished difference Result 878 states and 1274 transitions. [2020-12-22 12:34:03,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:03,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-22 12:34:03,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:03,894 INFO L225 Difference]: With dead ends: 878 [2020-12-22 12:34:03,894 INFO L226 Difference]: Without dead ends: 428 [2020-12-22 12:34:03,900 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 12:34:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-12-22 12:34:03,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2020-12-22 12:34:03,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-12-22 12:34:03,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 607 transitions. [2020-12-22 12:34:03,975 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 607 transitions. Word has length 6 [2020-12-22 12:34:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:03,975 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 607 transitions. [2020-12-22 12:34:03,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 607 transitions. [2020-12-22 12:34:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 12:34:03,976 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:03,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:03,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:34:03,977 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 12:34:03,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:03,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1044197774, now seen corresponding path program 1 times [2020-12-22 12:34:03,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:03,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404143240] [2020-12-22 12:34:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:04,495 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 12:34:04,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404143240] [2020-12-22 12:34:04,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:04,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:04,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344351809] [2020-12-22 12:34:04,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:04,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:04,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:04,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:04,500 INFO L87 Difference]: Start difference. First operand 428 states and 607 transitions. Second operand 3 states. [2020-12-22 12:34:06,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:06,743 INFO L93 Difference]: Finished difference Result 428 states and 607 transitions. [2020-12-22 12:34:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:06,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 12:34:06,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:06,750 INFO L225 Difference]: With dead ends: 428 [2020-12-22 12:34:06,750 INFO L226 Difference]: Without dead ends: 426 [2020-12-22 12:34:06,752 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 12:34:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-12-22 12:34:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-12-22 12:34:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-12-22 12:34:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 605 transitions. [2020-12-22 12:34:06,806 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 605 transitions. Word has length 7 [2020-12-22 12:34:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:06,806 INFO L481 AbstractCegarLoop]: Abstraction has 426 states and 605 transitions. [2020-12-22 12:34:06,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 605 transitions. [2020-12-22 12:34:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 12:34:06,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:06,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:06,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:34:06,810 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 12:34:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:06,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1989607252, now seen corresponding path program 1 times [2020-12-22 12:34:06,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:06,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952681928] [2020-12-22 12:34:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:07,280 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 12:34:07,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952681928] [2020-12-22 12:34:07,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:07,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:07,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986531612] [2020-12-22 12:34:07,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:07,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:07,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:07,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:07,293 INFO L87 Difference]: Start difference. First operand 426 states and 605 transitions. Second operand 3 states. [2020-12-22 12:34:09,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:09,475 INFO L93 Difference]: Finished difference Result 426 states and 605 transitions. [2020-12-22 12:34:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:09,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 12:34:09,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:09,478 INFO L225 Difference]: With dead ends: 426 [2020-12-22 12:34:09,479 INFO L226 Difference]: Without dead ends: 424 [2020-12-22 12:34:09,480 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 12:34:09,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-12-22 12:34:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2020-12-22 12:34:09,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-12-22 12:34:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 603 transitions. [2020-12-22 12:34:09,500 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 603 transitions. Word has length 8 [2020-12-22 12:34:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:09,501 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 603 transitions. [2020-12-22 12:34:09,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 603 transitions. [2020-12-22 12:34:09,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 12:34:09,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:09,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:09,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:34:09,503 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 12:34:09,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:09,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1548282556, now seen corresponding path program 1 times [2020-12-22 12:34:09,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:09,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380224924] [2020-12-22 12:34:09,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:09,980 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 12:34:09,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380224924] [2020-12-22 12:34:09,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:09,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:09,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454800693] [2020-12-22 12:34:09,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:09,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:09,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:09,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:09,985 INFO L87 Difference]: Start difference. First operand 424 states and 603 transitions. Second operand 3 states. [2020-12-22 12:34:12,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:12,214 INFO L93 Difference]: Finished difference Result 424 states and 603 transitions. [2020-12-22 12:34:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:12,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 12:34:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:12,218 INFO L225 Difference]: With dead ends: 424 [2020-12-22 12:34:12,218 INFO L226 Difference]: Without dead ends: 422 [2020-12-22 12:34:12,219 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 12:34:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-22 12:34:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2020-12-22 12:34:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-12-22 12:34:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 601 transitions. [2020-12-22 12:34:12,238 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 601 transitions. Word has length 9 [2020-12-22 12:34:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:12,239 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 601 transitions. [2020-12-22 12:34:12,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:12,239 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 601 transitions. [2020-12-22 12:34:12,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 12:34:12,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:12,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:34:12,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 12:34:12,240 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 12:34:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:12,241 INFO L82 PathProgramCache]: Analyzing trace with hash 752118878, now seen corresponding path program 1 times [2020-12-22 12:34:12,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:12,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236944553] [2020-12-22 12:34:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:12,711 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 12:34:12,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236944553] [2020-12-22 12:34:12,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:12,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:12,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763861171] [2020-12-22 12:34:12,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:12,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:12,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:12,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:12,716 INFO L87 Difference]: Start difference. First operand 422 states and 601 transitions. Second operand 3 states. [2020-12-22 12:34:14,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:14,941 INFO L93 Difference]: Finished difference Result 422 states and 601 transitions. [2020-12-22 12:34:14,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:34:14,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 12:34:14,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:14,972 INFO L225 Difference]: With dead ends: 422 [2020-12-22 12:34:14,972 INFO L226 Difference]: Without dead ends: 415 [2020-12-22 12:34:14,972 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 12:34:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-12-22 12:34:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2020-12-22 12:34:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-12-22 12:34:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 594 transitions. [2020-12-22 12:34:14,992 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 594 transitions. Word has length 10 [2020-12-22 12:34:14,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:14,992 INFO L481 AbstractCegarLoop]: Abstraction has 415 states and 594 transitions. [2020-12-22 12:34:14,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:34:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 594 transitions. [2020-12-22 12:34:14,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 12:34:14,994 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:14,994 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 12:34:14,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 12:34:14,995 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 12:34:14,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:14,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1686685008, now seen corresponding path program 1 times [2020-12-22 12:34:14,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:14,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194034952] [2020-12-22 12:34:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:15,778 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 12:34:15,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194034952] [2020-12-22 12:34:15,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:15,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:15,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879001826] [2020-12-22 12:34:15,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:34:15,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:15,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:34:15,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:34:15,782 INFO L87 Difference]: Start difference. First operand 415 states and 594 transitions. Second operand 4 states. [2020-12-22 12:34:18,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:34:18,124 INFO L93 Difference]: Finished difference Result 832 states and 1192 transitions. [2020-12-22 12:34:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 12:34:18,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-22 12:34:18,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:34:18,128 INFO L225 Difference]: With dead ends: 832 [2020-12-22 12:34:18,129 INFO L226 Difference]: Without dead ends: 419 [2020-12-22 12:34:18,130 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 12:34:18,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-12-22 12:34:18,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 416. [2020-12-22 12:34:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-12-22 12:34:18,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 595 transitions. [2020-12-22 12:34:18,155 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 595 transitions. Word has length 22 [2020-12-22 12:34:18,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:34:18,156 INFO L481 AbstractCegarLoop]: Abstraction has 416 states and 595 transitions. [2020-12-22 12:34:18,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 12:34:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 595 transitions. [2020-12-22 12:34:18,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 12:34:18,164 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:34:18,164 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 12:34:18,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 12:34:18,165 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 12:34:18,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:34:18,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1019148295, now seen corresponding path program 1 times [2020-12-22 12:34:18,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:34:18,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195465285] [2020-12-22 12:34:18,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:34:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:34:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:34:18,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195465285] [2020-12-22 12:34:18,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:34:18,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:34:18,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179144008] [2020-12-22 12:34:18,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:34:18,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:34:18,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:34:18,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:34:18,907 INFO L87 Difference]: Start difference. First operand 416 states and 595 transitions. Second operand 3 states.