/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/product-lines/email_spec4_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:37:56,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:37:56,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:37:56,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:37:56,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:37:56,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:37:56,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:37:56,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:37:56,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:37:56,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:37:56,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:37:56,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:37:56,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:37:56,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:37:56,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:37:56,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:37:56,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:37:56,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:37:57,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:37:57,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:37:57,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:37:57,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:37:57,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:37:57,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:37:57,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:37:57,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:37:57,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:37:57,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:37:57,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:37:57,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:37:57,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:37:57,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:37:57,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:37:57,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:37:57,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:37:57,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:37:57,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:37:57,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:37:57,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:37:57,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:37:57,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:37:57,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:37:57,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:37:57,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:37:57,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:37:57,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:37:57,070 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:37:57,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:37:57,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:37:57,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:37:57,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:37:57,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:37:57,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:37:57,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:37:57,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:37:57,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:37:57,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:37:57,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:37:57,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:37:57,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:37:57,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:37:57,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:37:57,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:37:57,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:37:57,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:37:57,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:37:57,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:37:57,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:37:57,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:37:57,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:37:57,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:37:57,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:37:57,472 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:37:57,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2020-12-22 06:37:57,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c5309c03/2641b5317fca4a9aabb281c8e9d780b8/FLAGfd9e74f91 [2020-12-22 06:37:58,430 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:37:58,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_productSimulator.cil.c [2020-12-22 06:37:58,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c5309c03/2641b5317fca4a9aabb281c8e9d780b8/FLAGfd9e74f91 [2020-12-22 06:37:58,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c5309c03/2641b5317fca4a9aabb281c8e9d780b8 [2020-12-22 06:37:58,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:37:58,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:37:58,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:37:58,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:37:58,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:37:58,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:37:58" (1/1) ... [2020-12-22 06:37:58,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a70b42a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:58, skipping insertion in model container [2020-12-22 06:37:58,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:37:58" (1/1) ... [2020-12-22 06:37:58,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:37:58,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:37:59,066 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/product-lines/email_spec4_productSimulator.cil.c[18559,18572] [2020-12-22 06:37:59,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:37:59,439 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:37:59,500 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/product-lines/email_spec4_productSimulator.cil.c[18559,18572] [2020-12-22 06:37:59,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:37:59,774 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:37:59,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59 WrapperNode [2020-12-22 06:37:59,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:37:59,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:37:59,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:37:59,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:37:59,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:37:59,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:06,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:38:06,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:38:06,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:38:06,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:38:06,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:06,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:08,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:08,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:10,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:11,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:12,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (1/1) ... [2020-12-22 06:38:13,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:38:13,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:38:13,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:38:13,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:38:13,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (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 06:38:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-22 06:38:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:38:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:38:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:38:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:39:28,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:39:28,038 INFO L299 CfgBuilder]: Removed 35867 assume(true) statements. [2020-12-22 06:39:28,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:39:28 BoogieIcfgContainer [2020-12-22 06:39:28,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:39:28,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:39:28,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:39:28,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:39:28,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:37:58" (1/3) ... [2020-12-22 06:39:28,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10de394b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:39:28, skipping insertion in model container [2020-12-22 06:39:28,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:37:59" (2/3) ... [2020-12-22 06:39:28,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10de394b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:39:28, skipping insertion in model container [2020-12-22 06:39:28,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:39:28" (3/3) ... [2020-12-22 06:39:28,086 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec4_productSimulator.cil.c [2020-12-22 06:39:28,093 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:39:28,113 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-12-22 06:39:28,137 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-12-22 06:39:28,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:39:28,321 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:39:28,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:39:28,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:39:28,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:39:28,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:39:28,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:39:28,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:39:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 34836 states. [2020-12-22 06:39:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 06:39:28,801 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:28,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:28,802 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:28,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:28,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1757871615, now seen corresponding path program 1 times [2020-12-22 06:39:28,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:28,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109373028] [2020-12-22 06:39:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:29,581 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 06:39:29,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109373028] [2020-12-22 06:39:29,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:29,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:39:29,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535045735] [2020-12-22 06:39:29,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:39:29,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:29,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:39:29,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:39:29,609 INFO L87 Difference]: Start difference. First operand 34836 states. Second operand 2 states. [2020-12-22 06:39:30,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:30,993 INFO L93 Difference]: Finished difference Result 69337 states and 111378 transitions. [2020-12-22 06:39:30,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:39:30,994 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 48 [2020-12-22 06:39:30,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:31,171 INFO L225 Difference]: With dead ends: 69337 [2020-12-22 06:39:31,171 INFO L226 Difference]: Without dead ends: 22316 [2020-12-22 06:39:31,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:39:31,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22316 states. [2020-12-22 06:39:32,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22316 to 22316. [2020-12-22 06:39:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22316 states. [2020-12-22 06:39:32,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22316 states to 22316 states and 35892 transitions. [2020-12-22 06:39:32,443 INFO L78 Accepts]: Start accepts. Automaton has 22316 states and 35892 transitions. Word has length 48 [2020-12-22 06:39:32,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:32,444 INFO L481 AbstractCegarLoop]: Abstraction has 22316 states and 35892 transitions. [2020-12-22 06:39:32,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:39:32,444 INFO L276 IsEmpty]: Start isEmpty. Operand 22316 states and 35892 transitions. [2020-12-22 06:39:32,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 06:39:32,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:32,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:32,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:39:32,463 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:32,470 INFO L82 PathProgramCache]: Analyzing trace with hash 303655270, now seen corresponding path program 1 times [2020-12-22 06:39:32,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:32,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768234778] [2020-12-22 06:39:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:32,742 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 06:39:32,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768234778] [2020-12-22 06:39:32,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:32,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:39:32,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800602871] [2020-12-22 06:39:32,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:39:32,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:32,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:39:32,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:32,748 INFO L87 Difference]: Start difference. First operand 22316 states and 35892 transitions. Second operand 5 states. [2020-12-22 06:39:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:33,674 INFO L93 Difference]: Finished difference Result 44607 states and 71746 transitions. [2020-12-22 06:39:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:39:33,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-12-22 06:39:33,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:33,765 INFO L225 Difference]: With dead ends: 44607 [2020-12-22 06:39:33,766 INFO L226 Difference]: Without dead ends: 22316 [2020-12-22 06:39:34,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:39:34,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22316 states. [2020-12-22 06:39:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22316 to 22316. [2020-12-22 06:39:34,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22316 states. [2020-12-22 06:39:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22316 states to 22316 states and 35885 transitions. [2020-12-22 06:39:34,625 INFO L78 Accepts]: Start accepts. Automaton has 22316 states and 35885 transitions. Word has length 49 [2020-12-22 06:39:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:34,625 INFO L481 AbstractCegarLoop]: Abstraction has 22316 states and 35885 transitions. [2020-12-22 06:39:34,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:39:34,626 INFO L276 IsEmpty]: Start isEmpty. Operand 22316 states and 35885 transitions. [2020-12-22 06:39:34,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 06:39:34,630 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:34,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:34,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:39:34,632 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:34,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:34,634 INFO L82 PathProgramCache]: Analyzing trace with hash -814290924, now seen corresponding path program 1 times [2020-12-22 06:39:34,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:34,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491966099] [2020-12-22 06:39:34,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:34,777 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 06:39:34,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491966099] [2020-12-22 06:39:34,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:34,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:34,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307162160] [2020-12-22 06:39:34,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:34,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:34,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:34,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:34,780 INFO L87 Difference]: Start difference. First operand 22316 states and 35885 transitions. Second operand 3 states. [2020-12-22 06:39:35,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:35,713 INFO L93 Difference]: Finished difference Result 30120 states and 48614 transitions. [2020-12-22 06:39:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:35,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-12-22 06:39:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:35,735 INFO L225 Difference]: With dead ends: 30120 [2020-12-22 06:39:35,736 INFO L226 Difference]: Without dead ends: 7824 [2020-12-22 06:39:35,779 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 06:39:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2020-12-22 06:39:35,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7824. [2020-12-22 06:39:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7824 states. [2020-12-22 06:39:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7824 states to 7824 states and 12669 transitions. [2020-12-22 06:39:35,977 INFO L78 Accepts]: Start accepts. Automaton has 7824 states and 12669 transitions. Word has length 54 [2020-12-22 06:39:35,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:35,984 INFO L481 AbstractCegarLoop]: Abstraction has 7824 states and 12669 transitions. [2020-12-22 06:39:35,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7824 states and 12669 transitions. [2020-12-22 06:39:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 06:39:35,987 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:35,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:35,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:39:35,988 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:35,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:35,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1926611194, now seen corresponding path program 1 times [2020-12-22 06:39:35,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:35,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896461482] [2020-12-22 06:39:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:36,098 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 06:39:36,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896461482] [2020-12-22 06:39:36,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:36,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:36,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643135495] [2020-12-22 06:39:36,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:36,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:36,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:36,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:36,101 INFO L87 Difference]: Start difference. First operand 7824 states and 12669 transitions. Second operand 3 states. [2020-12-22 06:39:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:36,680 INFO L93 Difference]: Finished difference Result 11666 states and 19052 transitions. [2020-12-22 06:39:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:36,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-12-22 06:39:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:36,690 INFO L225 Difference]: With dead ends: 11666 [2020-12-22 06:39:36,691 INFO L226 Difference]: Without dead ends: 3864 [2020-12-22 06:39:36,702 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 06:39:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2020-12-22 06:39:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3864. [2020-12-22 06:39:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3864 states. [2020-12-22 06:39:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 6368 transitions. [2020-12-22 06:39:36,824 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 6368 transitions. Word has length 60 [2020-12-22 06:39:36,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:36,826 INFO L481 AbstractCegarLoop]: Abstraction has 3864 states and 6368 transitions. [2020-12-22 06:39:36,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:36,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 6368 transitions. [2020-12-22 06:39:36,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 06:39:36,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:36,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:36,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:39:36,831 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:36,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:36,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1154434064, now seen corresponding path program 1 times [2020-12-22 06:39:36,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:36,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190445040] [2020-12-22 06:39:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:36,955 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 06:39:36,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190445040] [2020-12-22 06:39:36,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:36,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:36,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835598493] [2020-12-22 06:39:36,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:36,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:36,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:36,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:36,959 INFO L87 Difference]: Start difference. First operand 3864 states and 6368 transitions. Second operand 3 states. [2020-12-22 06:39:37,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:37,191 INFO L93 Difference]: Finished difference Result 7689 states and 12678 transitions. [2020-12-22 06:39:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:37,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 06:39:37,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:37,201 INFO L225 Difference]: With dead ends: 7689 [2020-12-22 06:39:37,201 INFO L226 Difference]: Without dead ends: 3861 [2020-12-22 06:39:37,208 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 06:39:37,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2020-12-22 06:39:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3855. [2020-12-22 06:39:37,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3855 states. [2020-12-22 06:39:37,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3855 states to 3855 states and 6339 transitions. [2020-12-22 06:39:37,347 INFO L78 Accepts]: Start accepts. Automaton has 3855 states and 6339 transitions. Word has length 61 [2020-12-22 06:39:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:37,347 INFO L481 AbstractCegarLoop]: Abstraction has 3855 states and 6339 transitions. [2020-12-22 06:39:37,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3855 states and 6339 transitions. [2020-12-22 06:39:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 06:39:37,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:37,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:37,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:39:37,350 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:37,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:37,351 INFO L82 PathProgramCache]: Analyzing trace with hash 2108560979, now seen corresponding path program 1 times [2020-12-22 06:39:37,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:37,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742661270] [2020-12-22 06:39:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:37,468 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 06:39:37,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742661270] [2020-12-22 06:39:37,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:37,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:39:37,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873494564] [2020-12-22 06:39:37,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:39:37,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:37,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:39:37,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:39:37,471 INFO L87 Difference]: Start difference. First operand 3855 states and 6339 transitions. Second operand 4 states. [2020-12-22 06:39:38,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:38,069 INFO L93 Difference]: Finished difference Result 11480 states and 18905 transitions. [2020-12-22 06:39:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:39:38,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-12-22 06:39:38,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:38,089 INFO L225 Difference]: With dead ends: 11480 [2020-12-22 06:39:38,090 INFO L226 Difference]: Without dead ends: 7665 [2020-12-22 06:39:38,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:38,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2020-12-22 06:39:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 3854. [2020-12-22 06:39:38,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3854 states. [2020-12-22 06:39:38,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 6335 transitions. [2020-12-22 06:39:38,309 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 6335 transitions. Word has length 67 [2020-12-22 06:39:38,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:38,310 INFO L481 AbstractCegarLoop]: Abstraction has 3854 states and 6335 transitions. [2020-12-22 06:39:38,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:39:38,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 6335 transitions. [2020-12-22 06:39:38,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 06:39:38,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:38,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:38,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:39:38,314 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:38,320 INFO L82 PathProgramCache]: Analyzing trace with hash -766507618, now seen corresponding path program 1 times [2020-12-22 06:39:38,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:38,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858373239] [2020-12-22 06:39:38,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:38,447 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 06:39:38,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858373239] [2020-12-22 06:39:38,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:38,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:39:38,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291476855] [2020-12-22 06:39:38,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:39:38,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:38,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:39:38,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:38,451 INFO L87 Difference]: Start difference. First operand 3854 states and 6335 transitions. Second operand 5 states. [2020-12-22 06:39:39,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:39,092 INFO L93 Difference]: Finished difference Result 11461 states and 18865 transitions. [2020-12-22 06:39:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:39:39,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-22 06:39:39,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:39,116 INFO L225 Difference]: With dead ends: 11461 [2020-12-22 06:39:39,117 INFO L226 Difference]: Without dead ends: 7651 [2020-12-22 06:39:39,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:39:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2020-12-22 06:39:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 3854. [2020-12-22 06:39:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3854 states. [2020-12-22 06:39:39,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 6334 transitions. [2020-12-22 06:39:39,397 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 6334 transitions. Word has length 68 [2020-12-22 06:39:39,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:39,398 INFO L481 AbstractCegarLoop]: Abstraction has 3854 states and 6334 transitions. [2020-12-22 06:39:39,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:39:39,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 6334 transitions. [2020-12-22 06:39:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 06:39:39,401 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:39,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:39,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:39:39,404 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash 489576486, now seen corresponding path program 1 times [2020-12-22 06:39:39,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:39,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106237123] [2020-12-22 06:39:39,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:39,531 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 06:39:39,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106237123] [2020-12-22 06:39:39,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:39,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:39,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118894649] [2020-12-22 06:39:39,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:39,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:39,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:39,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:39,534 INFO L87 Difference]: Start difference. First operand 3854 states and 6334 transitions. Second operand 3 states. [2020-12-22 06:39:39,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:39,735 INFO L93 Difference]: Finished difference Result 7386 states and 12107 transitions. [2020-12-22 06:39:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:39,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-22 06:39:39,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:39,745 INFO L225 Difference]: With dead ends: 7386 [2020-12-22 06:39:39,745 INFO L226 Difference]: Without dead ends: 3857 [2020-12-22 06:39:39,751 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 06:39:39,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2020-12-22 06:39:39,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 3856. [2020-12-22 06:39:39,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3856 states. [2020-12-22 06:39:39,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 6336 transitions. [2020-12-22 06:39:39,926 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 6336 transitions. Word has length 69 [2020-12-22 06:39:39,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:39,926 INFO L481 AbstractCegarLoop]: Abstraction has 3856 states and 6336 transitions. [2020-12-22 06:39:39,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:39,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 6336 transitions. [2020-12-22 06:39:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 06:39:39,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:39,936 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:39,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:39:39,936 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:39,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1656002416, now seen corresponding path program 1 times [2020-12-22 06:39:39,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:39,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619943771] [2020-12-22 06:39:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:39:40,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619943771] [2020-12-22 06:39:40,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:40,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:40,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486224542] [2020-12-22 06:39:40,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:40,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:40,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:40,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:40,051 INFO L87 Difference]: Start difference. First operand 3856 states and 6336 transitions. Second operand 3 states. [2020-12-22 06:39:40,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:40,503 INFO L93 Difference]: Finished difference Result 11401 states and 18763 transitions. [2020-12-22 06:39:40,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:40,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 06:39:40,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:40,525 INFO L225 Difference]: With dead ends: 11401 [2020-12-22 06:39:40,525 INFO L226 Difference]: Without dead ends: 7602 [2020-12-22 06:39:40,533 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 06:39:40,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7602 states. [2020-12-22 06:39:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7602 to 4073. [2020-12-22 06:39:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-12-22 06:39:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 6731 transitions. [2020-12-22 06:39:40,759 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 6731 transitions. Word has length 77 [2020-12-22 06:39:40,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:40,761 INFO L481 AbstractCegarLoop]: Abstraction has 4073 states and 6731 transitions. [2020-12-22 06:39:40,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 6731 transitions. [2020-12-22 06:39:40,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 06:39:40,763 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:40,764 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:40,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:39:40,764 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:40,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:40,765 INFO L82 PathProgramCache]: Analyzing trace with hash -481351335, now seen corresponding path program 1 times [2020-12-22 06:39:40,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:40,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137607600] [2020-12-22 06:39:40,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:39:40,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137607600] [2020-12-22 06:39:40,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371731592] [2020-12-22 06:39:40,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:39:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:41,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 06:39:41,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:39:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 06:39:41,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:39:41,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-12-22 06:39:41,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902138737] [2020-12-22 06:39:41,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:39:41,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:41,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:39:41,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:39:41,587 INFO L87 Difference]: Start difference. First operand 4073 states and 6731 transitions. Second operand 4 states. [2020-12-22 06:39:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:41,938 INFO L93 Difference]: Finished difference Result 8103 states and 13408 transitions. [2020-12-22 06:39:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:39:41,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-22 06:39:41,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:41,950 INFO L225 Difference]: With dead ends: 8103 [2020-12-22 06:39:41,950 INFO L226 Difference]: Without dead ends: 4079 [2020-12-22 06:39:41,958 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:39:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2020-12-22 06:39:42,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 4073. [2020-12-22 06:39:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-12-22 06:39:42,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 6729 transitions. [2020-12-22 06:39:42,194 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 6729 transitions. Word has length 78 [2020-12-22 06:39:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:42,194 INFO L481 AbstractCegarLoop]: Abstraction has 4073 states and 6729 transitions. [2020-12-22 06:39:42,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:39:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 6729 transitions. [2020-12-22 06:39:42,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 06:39:42,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:42,197 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:42,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 06:39:42,411 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:42,412 INFO L82 PathProgramCache]: Analyzing trace with hash 35910292, now seen corresponding path program 1 times [2020-12-22 06:39:42,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:42,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464025965] [2020-12-22 06:39:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 06:39:42,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464025965] [2020-12-22 06:39:42,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:42,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:39:42,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879782393] [2020-12-22 06:39:42,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:39:42,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:42,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:39:42,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:42,519 INFO L87 Difference]: Start difference. First operand 4073 states and 6729 transitions. Second operand 5 states. [2020-12-22 06:39:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:43,221 INFO L93 Difference]: Finished difference Result 12096 states and 20016 transitions. [2020-12-22 06:39:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:39:43,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-12-22 06:39:43,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:43,244 INFO L225 Difference]: With dead ends: 12096 [2020-12-22 06:39:43,244 INFO L226 Difference]: Without dead ends: 8076 [2020-12-22 06:39:43,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:39:43,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8076 states. [2020-12-22 06:39:43,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8076 to 4073. [2020-12-22 06:39:43,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-12-22 06:39:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 6728 transitions. [2020-12-22 06:39:43,646 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 6728 transitions. Word has length 80 [2020-12-22 06:39:43,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:43,647 INFO L481 AbstractCegarLoop]: Abstraction has 4073 states and 6728 transitions. [2020-12-22 06:39:43,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:39:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 6728 transitions. [2020-12-22 06:39:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 06:39:43,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:43,649 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:43,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:39:43,651 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:43,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:43,652 INFO L82 PathProgramCache]: Analyzing trace with hash -350722280, now seen corresponding path program 1 times [2020-12-22 06:39:43,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:43,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418978809] [2020-12-22 06:39:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 06:39:43,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418978809] [2020-12-22 06:39:43,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:43,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:39:43,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315833588] [2020-12-22 06:39:43,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:39:43,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:43,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:39:43,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:43,774 INFO L87 Difference]: Start difference. First operand 4073 states and 6728 transitions. Second operand 5 states. [2020-12-22 06:39:44,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:44,573 INFO L93 Difference]: Finished difference Result 12102 states and 20022 transitions. [2020-12-22 06:39:44,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:39:44,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2020-12-22 06:39:44,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:44,592 INFO L225 Difference]: With dead ends: 12102 [2020-12-22 06:39:44,593 INFO L226 Difference]: Without dead ends: 8082 [2020-12-22 06:39:44,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:39:44,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8082 states. [2020-12-22 06:39:44,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8082 to 4073. [2020-12-22 06:39:44,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-12-22 06:39:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 6727 transitions. [2020-12-22 06:39:44,909 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 6727 transitions. Word has length 81 [2020-12-22 06:39:44,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:44,909 INFO L481 AbstractCegarLoop]: Abstraction has 4073 states and 6727 transitions. [2020-12-22 06:39:44,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:39:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 6727 transitions. [2020-12-22 06:39:44,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 06:39:44,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:44,912 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:44,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:39:44,912 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:44,913 INFO L82 PathProgramCache]: Analyzing trace with hash 122655279, now seen corresponding path program 1 times [2020-12-22 06:39:44,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:44,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357162038] [2020-12-22 06:39:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:45,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:39:45,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357162038] [2020-12-22 06:39:45,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703141531] [2020-12-22 06:39:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:39:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:45,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:39:45,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:39:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:39:45,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 06:39:45,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 06:39:45,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784149472] [2020-12-22 06:39:45,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:39:45,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:45,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:39:45,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:45,608 INFO L87 Difference]: Start difference. First operand 4073 states and 6727 transitions. Second operand 5 states. [2020-12-22 06:39:46,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:46,196 INFO L93 Difference]: Finished difference Result 11405 states and 18762 transitions. [2020-12-22 06:39:46,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:39:46,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2020-12-22 06:39:46,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:46,218 INFO L225 Difference]: With dead ends: 11405 [2020-12-22 06:39:46,218 INFO L226 Difference]: Without dead ends: 7876 [2020-12-22 06:39:46,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7876 states. [2020-12-22 06:39:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7876 to 4345. [2020-12-22 06:39:46,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4345 states. [2020-12-22 06:39:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 7220 transitions. [2020-12-22 06:39:46,617 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 7220 transitions. Word has length 82 [2020-12-22 06:39:46,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:46,617 INFO L481 AbstractCegarLoop]: Abstraction has 4345 states and 7220 transitions. [2020-12-22 06:39:46,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:39:46,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 7220 transitions. [2020-12-22 06:39:46,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 06:39:46,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:46,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:46,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 06:39:46,836 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:46,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:46,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1403630408, now seen corresponding path program 1 times [2020-12-22 06:39:46,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:46,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804955175] [2020-12-22 06:39:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:46,922 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 06:39:46,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804955175] [2020-12-22 06:39:46,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:46,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:46,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698294750] [2020-12-22 06:39:46,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:46,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:46,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:46,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:46,927 INFO L87 Difference]: Start difference. First operand 4345 states and 7220 transitions. Second operand 3 states. [2020-12-22 06:39:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:47,350 INFO L93 Difference]: Finished difference Result 12575 states and 20893 transitions. [2020-12-22 06:39:47,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:47,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-12-22 06:39:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:47,366 INFO L225 Difference]: With dead ends: 12575 [2020-12-22 06:39:47,367 INFO L226 Difference]: Without dead ends: 8351 [2020-12-22 06:39:47,376 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 06:39:47,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8351 states. [2020-12-22 06:39:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8351 to 4822. [2020-12-22 06:39:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4822 states. [2020-12-22 06:39:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 8085 transitions. [2020-12-22 06:39:47,843 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 8085 transitions. Word has length 86 [2020-12-22 06:39:47,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:47,844 INFO L481 AbstractCegarLoop]: Abstraction has 4822 states and 8085 transitions. [2020-12-22 06:39:47,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 8085 transitions. [2020-12-22 06:39:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 06:39:47,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:47,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:47,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:39:47,849 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:47,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1063846831, now seen corresponding path program 1 times [2020-12-22 06:39:47,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:47,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266250846] [2020-12-22 06:39:47,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:47,926 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 06:39:47,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266250846] [2020-12-22 06:39:47,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:47,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:47,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362728619] [2020-12-22 06:39:47,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:47,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:47,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:47,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:47,928 INFO L87 Difference]: Start difference. First operand 4822 states and 8085 transitions. Second operand 3 states. [2020-12-22 06:39:48,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:48,752 INFO L93 Difference]: Finished difference Result 13983 states and 23456 transitions. [2020-12-22 06:39:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:48,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-12-22 06:39:48,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:48,769 INFO L225 Difference]: With dead ends: 13983 [2020-12-22 06:39:48,769 INFO L226 Difference]: Without dead ends: 9291 [2020-12-22 06:39:48,777 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 06:39:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9291 states. [2020-12-22 06:39:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9291 to 5762. [2020-12-22 06:39:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5762 states. [2020-12-22 06:39:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 9794 transitions. [2020-12-22 06:39:49,201 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 9794 transitions. Word has length 87 [2020-12-22 06:39:49,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:49,201 INFO L481 AbstractCegarLoop]: Abstraction has 5762 states and 9794 transitions. [2020-12-22 06:39:49,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:49,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 9794 transitions. [2020-12-22 06:39:49,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 06:39:49,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:49,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:49,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 06:39:49,210 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:49,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:49,211 INFO L82 PathProgramCache]: Analyzing trace with hash -2097869745, now seen corresponding path program 1 times [2020-12-22 06:39:49,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:49,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581441400] [2020-12-22 06:39:49,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:49,295 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 06:39:49,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581441400] [2020-12-22 06:39:49,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:49,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:49,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098191105] [2020-12-22 06:39:49,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:49,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:49,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:49,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:49,299 INFO L87 Difference]: Start difference. First operand 5762 states and 9794 transitions. Second operand 3 states. [2020-12-22 06:39:50,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:50,086 INFO L93 Difference]: Finished difference Result 16534 states and 28097 transitions. [2020-12-22 06:39:50,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:50,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-12-22 06:39:50,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:50,108 INFO L225 Difference]: With dead ends: 16534 [2020-12-22 06:39:50,108 INFO L226 Difference]: Without dead ends: 10937 [2020-12-22 06:39:50,118 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 06:39:50,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10937 states. [2020-12-22 06:39:50,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10937 to 7408. [2020-12-22 06:39:50,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7408 states. [2020-12-22 06:39:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7408 states to 7408 states and 12783 transitions. [2020-12-22 06:39:50,623 INFO L78 Accepts]: Start accepts. Automaton has 7408 states and 12783 transitions. Word has length 88 [2020-12-22 06:39:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:50,624 INFO L481 AbstractCegarLoop]: Abstraction has 7408 states and 12783 transitions. [2020-12-22 06:39:50,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7408 states and 12783 transitions. [2020-12-22 06:39:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 06:39:50,630 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:50,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:50,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 06:39:50,631 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:50,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:50,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1784136728, now seen corresponding path program 1 times [2020-12-22 06:39:50,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:50,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012965189] [2020-12-22 06:39:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:50,707 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 06:39:50,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012965189] [2020-12-22 06:39:50,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:50,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:50,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512538371] [2020-12-22 06:39:50,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:50,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:50,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:50,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:50,713 INFO L87 Difference]: Start difference. First operand 7408 states and 12783 transitions. Second operand 3 states. [2020-12-22 06:39:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:51,390 INFO L93 Difference]: Finished difference Result 21179 states and 36538 transitions. [2020-12-22 06:39:51,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:51,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-12-22 06:39:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:51,415 INFO L225 Difference]: With dead ends: 21179 [2020-12-22 06:39:51,415 INFO L226 Difference]: Without dead ends: 13971 [2020-12-22 06:39:51,427 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 06:39:51,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13971 states. [2020-12-22 06:39:52,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13971 to 10442. [2020-12-22 06:39:52,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10442 states. [2020-12-22 06:39:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10442 states to 10442 states and 18288 transitions. [2020-12-22 06:39:52,035 INFO L78 Accepts]: Start accepts. Automaton has 10442 states and 18288 transitions. Word has length 89 [2020-12-22 06:39:52,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:52,035 INFO L481 AbstractCegarLoop]: Abstraction has 10442 states and 18288 transitions. [2020-12-22 06:39:52,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 10442 states and 18288 transitions. [2020-12-22 06:39:52,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 06:39:52,041 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:52,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:52,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 06:39:52,042 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:52,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:52,042 INFO L82 PathProgramCache]: Analyzing trace with hash 316747876, now seen corresponding path program 1 times [2020-12-22 06:39:52,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:52,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400433149] [2020-12-22 06:39:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:52,109 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 06:39:52,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400433149] [2020-12-22 06:39:52,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:52,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:52,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922341369] [2020-12-22 06:39:52,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:52,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:52,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:52,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:52,111 INFO L87 Difference]: Start difference. First operand 10442 states and 18288 transitions. Second operand 3 states. [2020-12-22 06:39:52,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:52,834 INFO L93 Difference]: Finished difference Result 30590 states and 53614 transitions. [2020-12-22 06:39:52,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:52,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-22 06:39:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:52,865 INFO L225 Difference]: With dead ends: 30590 [2020-12-22 06:39:52,865 INFO L226 Difference]: Without dead ends: 20357 [2020-12-22 06:39:52,884 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 06:39:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20357 states. [2020-12-22 06:39:53,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20357 to 16828. [2020-12-22 06:39:53,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16828 states. [2020-12-22 06:39:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16828 states to 16828 states and 29857 transitions. [2020-12-22 06:39:53,663 INFO L78 Accepts]: Start accepts. Automaton has 16828 states and 29857 transitions. Word has length 90 [2020-12-22 06:39:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:53,663 INFO L481 AbstractCegarLoop]: Abstraction has 16828 states and 29857 transitions. [2020-12-22 06:39:53,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 16828 states and 29857 transitions. [2020-12-22 06:39:53,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 06:39:53,671 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:53,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:53,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 06:39:53,672 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:53,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1579913213, now seen corresponding path program 1 times [2020-12-22 06:39:53,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:53,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170671709] [2020-12-22 06:39:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:53,746 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 06:39:53,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170671709] [2020-12-22 06:39:53,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:53,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:39:53,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472443526] [2020-12-22 06:39:53,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:39:53,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:53,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:39:53,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:39:53,748 INFO L87 Difference]: Start difference. First operand 16828 states and 29857 transitions. Second operand 3 states. [2020-12-22 06:39:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:55,280 INFO L93 Difference]: Finished difference Result 49545 states and 88019 transitions. [2020-12-22 06:39:55,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:39:55,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-12-22 06:39:55,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:55,341 INFO L225 Difference]: With dead ends: 49545 [2020-12-22 06:39:55,341 INFO L226 Difference]: Without dead ends: 32935 [2020-12-22 06:39:55,363 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 06:39:55,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32935 states. [2020-12-22 06:39:56,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32935 to 29406. [2020-12-22 06:39:56,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29406 states. [2020-12-22 06:39:56,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29406 states to 29406 states and 52674 transitions. [2020-12-22 06:39:56,617 INFO L78 Accepts]: Start accepts. Automaton has 29406 states and 52674 transitions. Word has length 91 [2020-12-22 06:39:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:39:56,618 INFO L481 AbstractCegarLoop]: Abstraction has 29406 states and 52674 transitions. [2020-12-22 06:39:56,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:39:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 29406 states and 52674 transitions. [2020-12-22 06:39:56,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 06:39:56,625 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:39:56,626 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:39:56,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 06:39:56,626 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:39:56,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:39:56,627 INFO L82 PathProgramCache]: Analyzing trace with hash 142879088, now seen corresponding path program 2 times [2020-12-22 06:39:56,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:39:56,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89347562] [2020-12-22 06:39:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:39:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:39:56,713 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:39:56,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89347562] [2020-12-22 06:39:56,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:39:56,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:39:56,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791078363] [2020-12-22 06:39:56,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:39:56,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:39:56,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:39:56,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:39:56,715 INFO L87 Difference]: Start difference. First operand 29406 states and 52674 transitions. Second operand 4 states. [2020-12-22 06:39:58,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:39:58,628 INFO L93 Difference]: Finished difference Result 62000 states and 110548 transitions. [2020-12-22 06:39:58,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:39:58,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-12-22 06:39:58,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:39:58,694 INFO L225 Difference]: With dead ends: 62000 [2020-12-22 06:39:58,695 INFO L226 Difference]: Without dead ends: 32935 [2020-12-22 06:39:58,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:39:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32935 states. [2020-12-22 06:40:00,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32935 to 29406. [2020-12-22 06:40:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29406 states. [2020-12-22 06:40:00,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29406 states to 29406 states and 52610 transitions. [2020-12-22 06:40:00,605 INFO L78 Accepts]: Start accepts. Automaton has 29406 states and 52610 transitions. Word has length 91 [2020-12-22 06:40:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:40:00,605 INFO L481 AbstractCegarLoop]: Abstraction has 29406 states and 52610 transitions. [2020-12-22 06:40:00,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:40:00,606 INFO L276 IsEmpty]: Start isEmpty. Operand 29406 states and 52610 transitions. [2020-12-22 06:40:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 06:40:00,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:40:00,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:40:00,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 06:40:00,614 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:40:00,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:40:00,614 INFO L82 PathProgramCache]: Analyzing trace with hash 739506299, now seen corresponding path program 1 times [2020-12-22 06:40:00,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:40:00,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857539116] [2020-12-22 06:40:00,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:40:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:40:00,690 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 06:40:00,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857539116] [2020-12-22 06:40:00,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:40:00,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:40:00,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169030142] [2020-12-22 06:40:00,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:40:00,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:40:00,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:40:00,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:40:00,692 INFO L87 Difference]: Start difference. First operand 29406 states and 52610 transitions. Second operand 3 states. [2020-12-22 06:40:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:40:03,303 INFO L93 Difference]: Finished difference Result 81853 states and 145820 transitions. [2020-12-22 06:40:03,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:40:03,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-12-22 06:40:03,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:40:03,392 INFO L225 Difference]: With dead ends: 81853 [2020-12-22 06:40:03,392 INFO L226 Difference]: Without dead ends: 52713 [2020-12-22 06:40:03,423 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 06:40:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52713 states. [2020-12-22 06:40:05,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52713 to 49184. [2020-12-22 06:40:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49184 states. [2020-12-22 06:40:05,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49184 states to 49184 states and 87747 transitions. [2020-12-22 06:40:05,550 INFO L78 Accepts]: Start accepts. Automaton has 49184 states and 87747 transitions. Word has length 92 [2020-12-22 06:40:05,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:40:05,550 INFO L481 AbstractCegarLoop]: Abstraction has 49184 states and 87747 transitions. [2020-12-22 06:40:05,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:40:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 49184 states and 87747 transitions. [2020-12-22 06:40:05,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 06:40:05,558 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:40:05,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:40:05,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 06:40:05,560 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:40:05,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:40:05,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1332769675, now seen corresponding path program 1 times [2020-12-22 06:40:05,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:40:05,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720581278] [2020-12-22 06:40:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:40:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:40:05,674 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 06:40:05,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720581278] [2020-12-22 06:40:05,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:40:05,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:40:05,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783142637] [2020-12-22 06:40:05,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:40:05,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:40:05,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:40:05,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:40:05,677 INFO L87 Difference]: Start difference. First operand 49184 states and 87747 transitions. Second operand 3 states. [2020-12-22 06:40:09,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:40:09,249 INFO L93 Difference]: Finished difference Result 138718 states and 247329 transitions. [2020-12-22 06:40:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:40:09,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-12-22 06:40:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:40:09,561 INFO L225 Difference]: With dead ends: 138718 [2020-12-22 06:40:09,561 INFO L226 Difference]: Without dead ends: 89835 [2020-12-22 06:40:09,606 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 06:40:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89835 states. [2020-12-22 06:40:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89835 to 86306. [2020-12-22 06:40:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86306 states. [2020-12-22 06:40:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86306 states to 86306 states and 154052 transitions. [2020-12-22 06:40:13,536 INFO L78 Accepts]: Start accepts. Automaton has 86306 states and 154052 transitions. Word has length 93 [2020-12-22 06:40:13,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:40:13,536 INFO L481 AbstractCegarLoop]: Abstraction has 86306 states and 154052 transitions. [2020-12-22 06:40:13,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:40:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 86306 states and 154052 transitions. [2020-12-22 06:40:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 06:40:13,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:40:13,543 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:40:13,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 06:40:13,543 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:40:13,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:40:13,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1781840165, now seen corresponding path program 1 times [2020-12-22 06:40:13,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:40:13,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35217215] [2020-12-22 06:40:13,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:40:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:40:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 06:40:13,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35217215] [2020-12-22 06:40:13,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:40:13,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:40:13,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134474425] [2020-12-22 06:40:13,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:40:13,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:40:13,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:40:13,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:40:13,900 INFO L87 Difference]: Start difference. First operand 86306 states and 154052 transitions. Second operand 6 states. [2020-12-22 06:40:20,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:40:20,604 INFO L93 Difference]: Finished difference Result 254658 states and 454372 transitions. [2020-12-22 06:40:20,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:40:20,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2020-12-22 06:40:20,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:40:21,141 INFO L225 Difference]: With dead ends: 254658 [2020-12-22 06:40:21,142 INFO L226 Difference]: Without dead ends: 168691 [2020-12-22 06:40:21,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:40:21,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168691 states.