/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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 07:17:02,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 07:17:02,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 07:17:02,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 07:17:02,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 07:17:02,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 07:17:02,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 07:17:02,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 07:17:02,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 07:17:02,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 07:17:02,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 07:17:02,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 07:17:02,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 07:17:02,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 07:17:02,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 07:17:02,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 07:17:02,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 07:17:02,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 07:17:02,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 07:17:02,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 07:17:02,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 07:17:02,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 07:17:02,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 07:17:02,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 07:17:02,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 07:17:02,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 07:17:02,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 07:17:02,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 07:17:02,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 07:17:02,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 07:17:02,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 07:17:02,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 07:17:02,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 07:17:02,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 07:17:02,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 07:17:02,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 07:17:02,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 07:17:02,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 07:17:02,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 07:17:02,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 07:17:02,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 07:17:02,845 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 07:17:02,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 07:17:02,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 07:17:02,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 07:17:02,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 07:17:02,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 07:17:02,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 07:17:02,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 07:17:02,849 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 07:17:02,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 07:17:02,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 07:17:02,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 07:17:02,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 07:17:02,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 07:17:02,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 07:17:02,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 07:17:02,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 07:17:02,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 07:17:02,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 07:17:02,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 07:17:02,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 07:17:02,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 07:17:03,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 07:17:03,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 07:17:03,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 07:17:03,337 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 07:17:03,338 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 07:17:03,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2020-12-22 07:17:03,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed107656/fd7ccfb8088b4b42aa8267f825b16503/FLAG9d171f34f [2020-12-22 07:17:04,107 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 07:17:04,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2020-12-22 07:17:04,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed107656/fd7ccfb8088b4b42aa8267f825b16503/FLAG9d171f34f [2020-12-22 07:17:04,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed107656/fd7ccfb8088b4b42aa8267f825b16503 [2020-12-22 07:17:04,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 07:17:04,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 07:17:04,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 07:17:04,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 07:17:04,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 07:17:04,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:04,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649ae089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04, skipping insertion in model container [2020-12-22 07:17:04,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:04,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 07:17:04,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 07:17:04,754 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2020-12-22 07:17:04,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:17:04,769 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 07:17:04,863 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c[12020,12033] [2020-12-22 07:17:04,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 07:17:04,887 INFO L208 MainTranslator]: Completed translation [2020-12-22 07:17:04,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04 WrapperNode [2020-12-22 07:17:04,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 07:17:04,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 07:17:04,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 07:17:04,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 07:17:04,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:04,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 07:17:05,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 07:17:05,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 07:17:05,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 07:17:05,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (1/1) ... [2020-12-22 07:17:05,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 07:17:05,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 07:17:05,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 07:17:05,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 07:17:05,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (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 07:17:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 07:17:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 07:17:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 07:17:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 07:17:07,623 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 07:17:07,624 INFO L299 CfgBuilder]: Removed 183 assume(true) statements. [2020-12-22 07:17:07,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:17:07 BoogieIcfgContainer [2020-12-22 07:17:07,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 07:17:07,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 07:17:07,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 07:17:07,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 07:17:07,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 07:17:04" (1/3) ... [2020-12-22 07:17:07,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526e2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:17:07, skipping insertion in model container [2020-12-22 07:17:07,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 07:17:04" (2/3) ... [2020-12-22 07:17:07,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526e2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 07:17:07, skipping insertion in model container [2020-12-22 07:17:07,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 07:17:07" (3/3) ... [2020-12-22 07:17:07,637 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2020-12-22 07:17:07,645 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 07:17:07,651 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2020-12-22 07:17:07,671 INFO L253 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2020-12-22 07:17:07,722 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 07:17:07,722 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 07:17:07,722 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 07:17:07,723 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 07:17:07,723 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 07:17:07,723 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 07:17:07,723 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 07:17:07,723 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 07:17:07,771 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states. [2020-12-22 07:17:07,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 07:17:07,792 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:07,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:17:07,794 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:07,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:07,801 INFO L82 PathProgramCache]: Analyzing trace with hash 595705480, now seen corresponding path program 1 times [2020-12-22 07:17:07,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:07,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191980539] [2020-12-22 07:17:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:08,142 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 07:17:08,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191980539] [2020-12-22 07:17:08,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:08,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:08,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509367928] [2020-12-22 07:17:08,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:08,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:08,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:08,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:08,174 INFO L87 Difference]: Start difference. First operand 521 states. Second operand 3 states. [2020-12-22 07:17:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:08,682 INFO L93 Difference]: Finished difference Result 1245 states and 2060 transitions. [2020-12-22 07:17:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:08,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 07:17:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:08,719 INFO L225 Difference]: With dead ends: 1245 [2020-12-22 07:17:08,720 INFO L226 Difference]: Without dead ends: 726 [2020-12-22 07:17:08,730 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 07:17:08,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2020-12-22 07:17:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 457. [2020-12-22 07:17:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-12-22 07:17:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 712 transitions. [2020-12-22 07:17:08,855 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 712 transitions. Word has length 9 [2020-12-22 07:17:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:08,856 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 712 transitions. [2020-12-22 07:17:08,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 712 transitions. [2020-12-22 07:17:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 07:17:08,859 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:08,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:17:08,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 07:17:08,861 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:08,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:08,864 INFO L82 PathProgramCache]: Analyzing trace with hash -503954138, now seen corresponding path program 1 times [2020-12-22 07:17:08,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:08,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727039819] [2020-12-22 07:17:08,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:08,981 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 07:17:08,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727039819] [2020-12-22 07:17:08,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:08,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:08,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814808249] [2020-12-22 07:17:08,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:08,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:08,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:08,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:08,986 INFO L87 Difference]: Start difference. First operand 457 states and 712 transitions. Second operand 3 states. [2020-12-22 07:17:09,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:09,093 INFO L93 Difference]: Finished difference Result 1131 states and 1746 transitions. [2020-12-22 07:17:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:09,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 07:17:09,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:09,098 INFO L225 Difference]: With dead ends: 1131 [2020-12-22 07:17:09,098 INFO L226 Difference]: Without dead ends: 676 [2020-12-22 07:17:09,100 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 07:17:09,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2020-12-22 07:17:09,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 424. [2020-12-22 07:17:09,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-12-22 07:17:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 654 transitions. [2020-12-22 07:17:09,118 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 654 transitions. Word has length 10 [2020-12-22 07:17:09,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:09,118 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 654 transitions. [2020-12-22 07:17:09,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 654 transitions. [2020-12-22 07:17:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 07:17:09,120 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:09,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:17:09,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 07:17:09,121 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:09,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:09,122 INFO L82 PathProgramCache]: Analyzing trace with hash -248055967, now seen corresponding path program 1 times [2020-12-22 07:17:09,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:09,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123799336] [2020-12-22 07:17:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:09,185 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 07:17:09,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123799336] [2020-12-22 07:17:09,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:09,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:09,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249142731] [2020-12-22 07:17:09,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:09,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:09,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:09,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:09,190 INFO L87 Difference]: Start difference. First operand 424 states and 654 transitions. Second operand 3 states. [2020-12-22 07:17:09,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:09,273 INFO L93 Difference]: Finished difference Result 1250 states and 1933 transitions. [2020-12-22 07:17:09,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:09,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-12-22 07:17:09,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:09,279 INFO L225 Difference]: With dead ends: 1250 [2020-12-22 07:17:09,279 INFO L226 Difference]: Without dead ends: 836 [2020-12-22 07:17:09,280 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 07:17:09,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-12-22 07:17:09,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 428. [2020-12-22 07:17:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-12-22 07:17:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 658 transitions. [2020-12-22 07:17:09,297 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 658 transitions. Word has length 14 [2020-12-22 07:17:09,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:09,297 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 658 transitions. [2020-12-22 07:17:09,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:09,297 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 658 transitions. [2020-12-22 07:17:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 07:17:09,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:09,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:17:09,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 07:17:09,299 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:09,300 INFO L82 PathProgramCache]: Analyzing trace with hash -35486156, now seen corresponding path program 1 times [2020-12-22 07:17:09,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:09,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123944836] [2020-12-22 07:17:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:09,354 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 07:17:09,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123944836] [2020-12-22 07:17:09,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:09,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:09,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850098320] [2020-12-22 07:17:09,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:09,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:09,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:09,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:09,357 INFO L87 Difference]: Start difference. First operand 428 states and 658 transitions. Second operand 4 states. [2020-12-22 07:17:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:09,483 INFO L93 Difference]: Finished difference Result 1579 states and 2407 transitions. [2020-12-22 07:17:09,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:09,484 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-22 07:17:09,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:09,491 INFO L225 Difference]: With dead ends: 1579 [2020-12-22 07:17:09,491 INFO L226 Difference]: Without dead ends: 1165 [2020-12-22 07:17:09,492 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 07:17:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2020-12-22 07:17:09,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 430. [2020-12-22 07:17:09,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-12-22 07:17:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 660 transitions. [2020-12-22 07:17:09,510 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 660 transitions. Word has length 18 [2020-12-22 07:17:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:09,510 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 660 transitions. [2020-12-22 07:17:09,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 660 transitions. [2020-12-22 07:17:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 07:17:09,512 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:09,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:17:09,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 07:17:09,512 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:09,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:09,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1707916525, now seen corresponding path program 1 times [2020-12-22 07:17:09,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:09,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005695275] [2020-12-22 07:17:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:09,600 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 07:17:09,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005695275] [2020-12-22 07:17:09,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:09,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:09,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286049226] [2020-12-22 07:17:09,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:09,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:09,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:09,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:09,605 INFO L87 Difference]: Start difference. First operand 430 states and 660 transitions. Second operand 4 states. [2020-12-22 07:17:09,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:09,676 INFO L93 Difference]: Finished difference Result 673 states and 1026 transitions. [2020-12-22 07:17:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:09,679 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-22 07:17:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:09,682 INFO L225 Difference]: With dead ends: 673 [2020-12-22 07:17:09,682 INFO L226 Difference]: Without dead ends: 428 [2020-12-22 07:17:09,683 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 07:17:09,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-12-22 07:17:09,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2020-12-22 07:17:09,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-12-22 07:17:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 653 transitions. [2020-12-22 07:17:09,696 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 653 transitions. Word has length 19 [2020-12-22 07:17:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:09,696 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 653 transitions. [2020-12-22 07:17:09,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 653 transitions. [2020-12-22 07:17:09,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 07:17:09,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:09,701 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] [2020-12-22 07:17:09,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 07:17:09,702 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:09,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1967275947, now seen corresponding path program 1 times [2020-12-22 07:17:09,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:09,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113296337] [2020-12-22 07:17:09,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 07:17:09,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113296337] [2020-12-22 07:17:09,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802113018] [2020-12-22 07:17:09,791 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 07:17:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:09,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 07:17:09,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:10,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 07:17:10,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:17:10,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 07:17:10,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486916826] [2020-12-22 07:17:10,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:17:10,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:10,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:17:10,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:10,076 INFO L87 Difference]: Start difference. First operand 428 states and 653 transitions. Second operand 5 states. [2020-12-22 07:17:10,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:10,341 INFO L93 Difference]: Finished difference Result 1667 states and 2557 transitions. [2020-12-22 07:17:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:10,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-22 07:17:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:10,349 INFO L225 Difference]: With dead ends: 1667 [2020-12-22 07:17:10,349 INFO L226 Difference]: Without dead ends: 1250 [2020-12-22 07:17:10,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 07:17:10,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-22 07:17:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 574. [2020-12-22 07:17:10,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-12-22 07:17:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 903 transitions. [2020-12-22 07:17:10,374 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 903 transitions. Word has length 21 [2020-12-22 07:17:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:10,374 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 903 transitions. [2020-12-22 07:17:10,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:17:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 903 transitions. [2020-12-22 07:17:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 07:17:10,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:10,376 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:17:10,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 07:17:10,587 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:10,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:10,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1165168607, now seen corresponding path program 2 times [2020-12-22 07:17:10,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:10,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060946975] [2020-12-22 07:17:10,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 07:17:10,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060946975] [2020-12-22 07:17:10,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:10,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:10,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069686458] [2020-12-22 07:17:10,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:10,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:10,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:10,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:10,640 INFO L87 Difference]: Start difference. First operand 574 states and 903 transitions. Second operand 3 states. [2020-12-22 07:17:10,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:10,829 INFO L93 Difference]: Finished difference Result 1297 states and 2010 transitions. [2020-12-22 07:17:10,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:10,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-22 07:17:10,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:10,834 INFO L225 Difference]: With dead ends: 1297 [2020-12-22 07:17:10,834 INFO L226 Difference]: Without dead ends: 781 [2020-12-22 07:17:10,835 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 07:17:10,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-12-22 07:17:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 508. [2020-12-22 07:17:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-12-22 07:17:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 778 transitions. [2020-12-22 07:17:10,856 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 778 transitions. Word has length 28 [2020-12-22 07:17:10,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:10,856 INFO L481 AbstractCegarLoop]: Abstraction has 508 states and 778 transitions. [2020-12-22 07:17:10,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:10,857 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 778 transitions. [2020-12-22 07:17:10,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 07:17:10,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:10,858 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 07:17:10,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 07:17:10,858 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:10,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:10,859 INFO L82 PathProgramCache]: Analyzing trace with hash 777427029, now seen corresponding path program 1 times [2020-12-22 07:17:10,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:10,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156957502] [2020-12-22 07:17:10,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 07:17:10,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156957502] [2020-12-22 07:17:10,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:10,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:10,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304937469] [2020-12-22 07:17:10,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:10,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:10,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:10,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:10,951 INFO L87 Difference]: Start difference. First operand 508 states and 778 transitions. Second operand 3 states. [2020-12-22 07:17:11,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:11,048 INFO L93 Difference]: Finished difference Result 1165 states and 1769 transitions. [2020-12-22 07:17:11,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:11,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-12-22 07:17:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:11,053 INFO L225 Difference]: With dead ends: 1165 [2020-12-22 07:17:11,053 INFO L226 Difference]: Without dead ends: 688 [2020-12-22 07:17:11,056 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 07:17:11,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-12-22 07:17:11,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 457. [2020-12-22 07:17:11,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-12-22 07:17:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 684 transitions. [2020-12-22 07:17:11,073 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 684 transitions. Word has length 28 [2020-12-22 07:17:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:11,073 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 684 transitions. [2020-12-22 07:17:11,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 684 transitions. [2020-12-22 07:17:11,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-22 07:17:11,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:11,078 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 07:17:11,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 07:17:11,078 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:11,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:11,081 INFO L82 PathProgramCache]: Analyzing trace with hash 104948594, now seen corresponding path program 1 times [2020-12-22 07:17:11,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:11,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343856660] [2020-12-22 07:17:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 07:17:11,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343856660] [2020-12-22 07:17:11,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:11,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:11,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347651752] [2020-12-22 07:17:11,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:11,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:11,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:11,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:11,173 INFO L87 Difference]: Start difference. First operand 457 states and 684 transitions. Second operand 4 states. [2020-12-22 07:17:11,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:11,263 INFO L93 Difference]: Finished difference Result 1099 states and 1650 transitions. [2020-12-22 07:17:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:11,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-12-22 07:17:11,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:11,275 INFO L225 Difference]: With dead ends: 1099 [2020-12-22 07:17:11,275 INFO L226 Difference]: Without dead ends: 686 [2020-12-22 07:17:11,276 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 07:17:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-12-22 07:17:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 457. [2020-12-22 07:17:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-12-22 07:17:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 682 transitions. [2020-12-22 07:17:11,293 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 682 transitions. Word has length 38 [2020-12-22 07:17:11,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:11,294 INFO L481 AbstractCegarLoop]: Abstraction has 457 states and 682 transitions. [2020-12-22 07:17:11,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:11,294 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 682 transitions. [2020-12-22 07:17:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 07:17:11,295 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:11,295 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:11,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 07:17:11,296 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:11,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:11,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1338937392, now seen corresponding path program 1 times [2020-12-22 07:17:11,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:11,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306353307] [2020-12-22 07:17:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:11,391 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 07:17:11,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306353307] [2020-12-22 07:17:11,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:11,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:11,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649147127] [2020-12-22 07:17:11,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:11,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:11,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:11,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:11,398 INFO L87 Difference]: Start difference. First operand 457 states and 682 transitions. Second operand 3 states. [2020-12-22 07:17:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:11,467 INFO L93 Difference]: Finished difference Result 1035 states and 1549 transitions. [2020-12-22 07:17:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:11,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-22 07:17:11,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:11,473 INFO L225 Difference]: With dead ends: 1035 [2020-12-22 07:17:11,473 INFO L226 Difference]: Without dead ends: 641 [2020-12-22 07:17:11,477 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 07:17:11,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-12-22 07:17:11,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 413. [2020-12-22 07:17:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-12-22 07:17:11,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 608 transitions. [2020-12-22 07:17:11,492 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 608 transitions. Word has length 50 [2020-12-22 07:17:11,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:11,494 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 608 transitions. [2020-12-22 07:17:11,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:11,494 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 608 transitions. [2020-12-22 07:17:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 07:17:11,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:11,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:11,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 07:17:11,496 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:11,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:11,497 INFO L82 PathProgramCache]: Analyzing trace with hash 970476669, now seen corresponding path program 1 times [2020-12-22 07:17:11,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:11,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457692383] [2020-12-22 07:17:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 07:17:11,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457692383] [2020-12-22 07:17:11,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:11,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:11,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400111914] [2020-12-22 07:17:11,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:11,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:11,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:11,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:11,583 INFO L87 Difference]: Start difference. First operand 413 states and 608 transitions. Second operand 3 states. [2020-12-22 07:17:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:11,693 INFO L93 Difference]: Finished difference Result 869 states and 1278 transitions. [2020-12-22 07:17:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:11,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 07:17:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:11,697 INFO L225 Difference]: With dead ends: 869 [2020-12-22 07:17:11,698 INFO L226 Difference]: Without dead ends: 511 [2020-12-22 07:17:11,699 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 07:17:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-12-22 07:17:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 369. [2020-12-22 07:17:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-12-22 07:17:11,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 520 transitions. [2020-12-22 07:17:11,712 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 520 transitions. Word has length 51 [2020-12-22 07:17:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:11,713 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 520 transitions. [2020-12-22 07:17:11,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 520 transitions. [2020-12-22 07:17:11,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-22 07:17:11,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:11,715 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:11,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 07:17:11,715 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:11,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:11,716 INFO L82 PathProgramCache]: Analyzing trace with hash 216341264, now seen corresponding path program 1 times [2020-12-22 07:17:11,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:11,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478681803] [2020-12-22 07:17:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:11,822 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 07:17:11,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478681803] [2020-12-22 07:17:11,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:11,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:11,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468549345] [2020-12-22 07:17:11,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:11,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:11,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:11,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:11,825 INFO L87 Difference]: Start difference. First operand 369 states and 520 transitions. Second operand 4 states. [2020-12-22 07:17:11,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:11,911 INFO L93 Difference]: Finished difference Result 877 states and 1257 transitions. [2020-12-22 07:17:11,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:11,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-12-22 07:17:11,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:11,917 INFO L225 Difference]: With dead ends: 877 [2020-12-22 07:17:11,918 INFO L226 Difference]: Without dead ends: 580 [2020-12-22 07:17:11,919 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 07:17:11,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-12-22 07:17:11,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 369. [2020-12-22 07:17:11,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-12-22 07:17:11,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 518 transitions. [2020-12-22 07:17:11,932 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 518 transitions. Word has length 62 [2020-12-22 07:17:11,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:11,932 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 518 transitions. [2020-12-22 07:17:11,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 518 transitions. [2020-12-22 07:17:11,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 07:17:11,933 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:11,933 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:11,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 07:17:11,934 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:11,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:11,934 INFO L82 PathProgramCache]: Analyzing trace with hash 542276843, now seen corresponding path program 1 times [2020-12-22 07:17:11,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:11,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836152044] [2020-12-22 07:17:11,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:11,997 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-22 07:17:11,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836152044] [2020-12-22 07:17:11,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480451872] [2020-12-22 07:17:11,998 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 07:17:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:12,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 07:17:12,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-22 07:17:12,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:17:12,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-22 07:17:12,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629377127] [2020-12-22 07:17:12,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 07:17:12,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:12,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 07:17:12,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:12,356 INFO L87 Difference]: Start difference. First operand 369 states and 518 transitions. Second operand 6 states. [2020-12-22 07:17:12,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:12,499 INFO L93 Difference]: Finished difference Result 1429 states and 2036 transitions. [2020-12-22 07:17:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:12,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2020-12-22 07:17:12,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:12,506 INFO L225 Difference]: With dead ends: 1429 [2020-12-22 07:17:12,506 INFO L226 Difference]: Without dead ends: 1079 [2020-12-22 07:17:12,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:12,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-12-22 07:17:12,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 442. [2020-12-22 07:17:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-12-22 07:17:12,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 615 transitions. [2020-12-22 07:17:12,526 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 615 transitions. Word has length 76 [2020-12-22 07:17:12,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:12,526 INFO L481 AbstractCegarLoop]: Abstraction has 442 states and 615 transitions. [2020-12-22 07:17:12,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 07:17:12,527 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 615 transitions. [2020-12-22 07:17:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 07:17:12,527 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:12,528 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 07:17:12,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 07:17:12,742 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:12,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1726325344, now seen corresponding path program 2 times [2020-12-22 07:17:12,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:12,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509680474] [2020-12-22 07:17:12,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-22 07:17:12,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509680474] [2020-12-22 07:17:12,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:12,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:12,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783551845] [2020-12-22 07:17:12,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:12,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:12,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:12,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:12,856 INFO L87 Difference]: Start difference. First operand 442 states and 615 transitions. Second operand 3 states. [2020-12-22 07:17:12,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:12,934 INFO L93 Difference]: Finished difference Result 866 states and 1248 transitions. [2020-12-22 07:17:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:12,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-22 07:17:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:12,938 INFO L225 Difference]: With dead ends: 866 [2020-12-22 07:17:12,938 INFO L226 Difference]: Without dead ends: 566 [2020-12-22 07:17:12,939 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 07:17:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-12-22 07:17:12,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 398. [2020-12-22 07:17:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-12-22 07:17:12,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 557 transitions. [2020-12-22 07:17:12,958 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 557 transitions. Word has length 103 [2020-12-22 07:17:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:12,958 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 557 transitions. [2020-12-22 07:17:12,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 557 transitions. [2020-12-22 07:17:12,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 07:17:12,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:12,960 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 07:17:12,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 07:17:12,961 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:12,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:12,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1846233333, now seen corresponding path program 1 times [2020-12-22 07:17:12,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:12,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227072056] [2020-12-22 07:17:12,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-22 07:17:13,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227072056] [2020-12-22 07:17:13,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:13,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300817937] [2020-12-22 07:17:13,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:13,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:13,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:13,032 INFO L87 Difference]: Start difference. First operand 398 states and 557 transitions. Second operand 3 states. [2020-12-22 07:17:13,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,077 INFO L93 Difference]: Finished difference Result 574 states and 819 transitions. [2020-12-22 07:17:13,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:13,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-12-22 07:17:13,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,080 INFO L225 Difference]: With dead ends: 574 [2020-12-22 07:17:13,081 INFO L226 Difference]: Without dead ends: 314 [2020-12-22 07:17:13,082 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 07:17:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-12-22 07:17:13,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2020-12-22 07:17:13,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-12-22 07:17:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 434 transitions. [2020-12-22 07:17:13,094 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 434 transitions. Word has length 112 [2020-12-22 07:17:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,094 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 434 transitions. [2020-12-22 07:17:13,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 434 transitions. [2020-12-22 07:17:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 07:17:13,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,096 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:13,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 07:17:13,096 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1519105475, now seen corresponding path program 1 times [2020-12-22 07:17:13,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12545682] [2020-12-22 07:17:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-12-22 07:17:13,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12545682] [2020-12-22 07:17:13,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:13,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689831615] [2020-12-22 07:17:13,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:13,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:13,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:13,170 INFO L87 Difference]: Start difference. First operand 314 states and 434 transitions. Second operand 4 states. [2020-12-22 07:17:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,225 INFO L93 Difference]: Finished difference Result 489 states and 695 transitions. [2020-12-22 07:17:13,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:13,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2020-12-22 07:17:13,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,229 INFO L225 Difference]: With dead ends: 489 [2020-12-22 07:17:13,229 INFO L226 Difference]: Without dead ends: 314 [2020-12-22 07:17:13,230 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 07:17:13,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-12-22 07:17:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2020-12-22 07:17:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-12-22 07:17:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 431 transitions. [2020-12-22 07:17:13,243 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 431 transitions. Word has length 115 [2020-12-22 07:17:13,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,243 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 431 transitions. [2020-12-22 07:17:13,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:13,243 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 431 transitions. [2020-12-22 07:17:13,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 07:17:13,245 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,245 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 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 07:17:13,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 07:17:13,245 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1299139450, now seen corresponding path program 1 times [2020-12-22 07:17:13,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562626449] [2020-12-22 07:17:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:13,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562626449] [2020-12-22 07:17:13,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:13,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727629693] [2020-12-22 07:17:13,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:13,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:13,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:13,328 INFO L87 Difference]: Start difference. First operand 314 states and 431 transitions. Second operand 3 states. [2020-12-22 07:17:13,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,373 INFO L93 Difference]: Finished difference Result 620 states and 893 transitions. [2020-12-22 07:17:13,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:13,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-12-22 07:17:13,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,377 INFO L225 Difference]: With dead ends: 620 [2020-12-22 07:17:13,377 INFO L226 Difference]: Without dead ends: 450 [2020-12-22 07:17:13,378 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 07:17:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-12-22 07:17:13,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 309. [2020-12-22 07:17:13,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-12-22 07:17:13,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 423 transitions. [2020-12-22 07:17:13,390 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 423 transitions. Word has length 126 [2020-12-22 07:17:13,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,391 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 423 transitions. [2020-12-22 07:17:13,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 423 transitions. [2020-12-22 07:17:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-22 07:17:13,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,393 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:13,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 07:17:13,393 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1867178510, now seen corresponding path program 1 times [2020-12-22 07:17:13,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735056085] [2020-12-22 07:17:13,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,466 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:13,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735056085] [2020-12-22 07:17:13,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:13,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457366233] [2020-12-22 07:17:13,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:13,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:13,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:13,468 INFO L87 Difference]: Start difference. First operand 309 states and 423 transitions. Second operand 3 states. [2020-12-22 07:17:13,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,512 INFO L93 Difference]: Finished difference Result 600 states and 863 transitions. [2020-12-22 07:17:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:13,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-12-22 07:17:13,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,515 INFO L225 Difference]: With dead ends: 600 [2020-12-22 07:17:13,516 INFO L226 Difference]: Without dead ends: 435 [2020-12-22 07:17:13,516 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 07:17:13,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-12-22 07:17:13,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 305. [2020-12-22 07:17:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-12-22 07:17:13,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2020-12-22 07:17:13,531 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 131 [2020-12-22 07:17:13,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,531 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2020-12-22 07:17:13,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2020-12-22 07:17:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-12-22 07:17:13,533 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,533 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:13,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 07:17:13,534 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,534 INFO L82 PathProgramCache]: Analyzing trace with hash -818573298, now seen corresponding path program 1 times [2020-12-22 07:17:13,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157264990] [2020-12-22 07:17:13,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:13,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157264990] [2020-12-22 07:17:13,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:13,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75427481] [2020-12-22 07:17:13,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:13,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:13,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:13,613 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 3 states. [2020-12-22 07:17:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,648 INFO L93 Difference]: Finished difference Result 464 states and 655 transitions. [2020-12-22 07:17:13,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:13,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-12-22 07:17:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,651 INFO L225 Difference]: With dead ends: 464 [2020-12-22 07:17:13,652 INFO L226 Difference]: Without dead ends: 303 [2020-12-22 07:17:13,652 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 07:17:13,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-22 07:17:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2020-12-22 07:17:13,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-12-22 07:17:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 410 transitions. [2020-12-22 07:17:13,666 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 410 transitions. Word has length 137 [2020-12-22 07:17:13,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,666 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 410 transitions. [2020-12-22 07:17:13,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:13,666 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 410 transitions. [2020-12-22 07:17:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-12-22 07:17:13,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,668 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:13,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 07:17:13,669 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1051221199, now seen corresponding path program 1 times [2020-12-22 07:17:13,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362173411] [2020-12-22 07:17:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:13,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362173411] [2020-12-22 07:17:13,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:13,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876782103] [2020-12-22 07:17:13,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:13,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:13,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:13,769 INFO L87 Difference]: Start difference. First operand 302 states and 410 transitions. Second operand 3 states. [2020-12-22 07:17:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,786 INFO L93 Difference]: Finished difference Result 509 states and 717 transitions. [2020-12-22 07:17:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:13,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-12-22 07:17:13,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,789 INFO L225 Difference]: With dead ends: 509 [2020-12-22 07:17:13,790 INFO L226 Difference]: Without dead ends: 351 [2020-12-22 07:17:13,790 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 07:17:13,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-12-22 07:17:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 299. [2020-12-22 07:17:13,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-22 07:17:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 406 transitions. [2020-12-22 07:17:13,804 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 406 transitions. Word has length 144 [2020-12-22 07:17:13,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,805 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 406 transitions. [2020-12-22 07:17:13,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 406 transitions. [2020-12-22 07:17:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-22 07:17:13,807 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,807 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:13,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 07:17:13,808 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,808 INFO L82 PathProgramCache]: Analyzing trace with hash 2123182376, now seen corresponding path program 1 times [2020-12-22 07:17:13,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381796179] [2020-12-22 07:17:13,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-22 07:17:13,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381796179] [2020-12-22 07:17:13,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:13,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:13,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896124275] [2020-12-22 07:17:13,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:13,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:13,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:13,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:13,920 INFO L87 Difference]: Start difference. First operand 299 states and 406 transitions. Second operand 3 states. [2020-12-22 07:17:13,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:13,965 INFO L93 Difference]: Finished difference Result 484 states and 674 transitions. [2020-12-22 07:17:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:13,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-12-22 07:17:13,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:13,968 INFO L225 Difference]: With dead ends: 484 [2020-12-22 07:17:13,969 INFO L226 Difference]: Without dead ends: 299 [2020-12-22 07:17:13,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 07:17:13,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-12-22 07:17:13,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2020-12-22 07:17:13,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-22 07:17:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 403 transitions. [2020-12-22 07:17:13,984 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 403 transitions. Word has length 147 [2020-12-22 07:17:13,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:13,985 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 403 transitions. [2020-12-22 07:17:13,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:13,985 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 403 transitions. [2020-12-22 07:17:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-22 07:17:13,987 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:13,987 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:13,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 07:17:13,988 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:13,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:13,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1291870858, now seen corresponding path program 1 times [2020-12-22 07:17:13,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:13,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884521656] [2020-12-22 07:17:13,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:14,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884521656] [2020-12-22 07:17:14,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:14,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:14,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350278663] [2020-12-22 07:17:14,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:14,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:14,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:14,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:14,136 INFO L87 Difference]: Start difference. First operand 299 states and 403 transitions. Second operand 4 states. [2020-12-22 07:17:14,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:14,285 INFO L93 Difference]: Finished difference Result 636 states and 897 transitions. [2020-12-22 07:17:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:14,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2020-12-22 07:17:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:14,289 INFO L225 Difference]: With dead ends: 636 [2020-12-22 07:17:14,289 INFO L226 Difference]: Without dead ends: 481 [2020-12-22 07:17:14,290 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 07:17:14,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-12-22 07:17:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 385. [2020-12-22 07:17:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-12-22 07:17:14,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 525 transitions. [2020-12-22 07:17:14,325 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 525 transitions. Word has length 159 [2020-12-22 07:17:14,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:14,326 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 525 transitions. [2020-12-22 07:17:14,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:14,326 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 525 transitions. [2020-12-22 07:17:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-22 07:17:14,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:14,329 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:14,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 07:17:14,329 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:14,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:14,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1937549472, now seen corresponding path program 1 times [2020-12-22 07:17:14,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:14,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665243774] [2020-12-22 07:17:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:14,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665243774] [2020-12-22 07:17:14,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:14,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:14,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114968808] [2020-12-22 07:17:14,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:14,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:14,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:14,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:14,502 INFO L87 Difference]: Start difference. First operand 385 states and 525 transitions. Second operand 3 states. [2020-12-22 07:17:14,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:14,571 INFO L93 Difference]: Finished difference Result 799 states and 1134 transitions. [2020-12-22 07:17:14,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:14,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-22 07:17:14,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:14,578 INFO L225 Difference]: With dead ends: 799 [2020-12-22 07:17:14,578 INFO L226 Difference]: Without dead ends: 599 [2020-12-22 07:17:14,579 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 07:17:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-12-22 07:17:14,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 459. [2020-12-22 07:17:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-12-22 07:17:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 628 transitions. [2020-12-22 07:17:14,614 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 628 transitions. Word has length 177 [2020-12-22 07:17:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:14,615 INFO L481 AbstractCegarLoop]: Abstraction has 459 states and 628 transitions. [2020-12-22 07:17:14,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 628 transitions. [2020-12-22 07:17:14,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-12-22 07:17:14,619 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:14,620 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:14,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 07:17:14,620 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:14,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:14,621 INFO L82 PathProgramCache]: Analyzing trace with hash -251982915, now seen corresponding path program 1 times [2020-12-22 07:17:14,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:14,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883504371] [2020-12-22 07:17:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:14,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883504371] [2020-12-22 07:17:14,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:14,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:14,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077408440] [2020-12-22 07:17:14,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:14,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:14,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:14,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:14,783 INFO L87 Difference]: Start difference. First operand 459 states and 628 transitions. Second operand 3 states. [2020-12-22 07:17:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:14,863 INFO L93 Difference]: Finished difference Result 955 states and 1354 transitions. [2020-12-22 07:17:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:14,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-12-22 07:17:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:14,869 INFO L225 Difference]: With dead ends: 955 [2020-12-22 07:17:14,869 INFO L226 Difference]: Without dead ends: 710 [2020-12-22 07:17:14,870 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 07:17:14,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2020-12-22 07:17:14,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 557. [2020-12-22 07:17:14,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-12-22 07:17:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 766 transitions. [2020-12-22 07:17:14,912 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 766 transitions. Word has length 178 [2020-12-22 07:17:14,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:14,913 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 766 transitions. [2020-12-22 07:17:14,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 766 transitions. [2020-12-22 07:17:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-22 07:17:14,916 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:14,916 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:14,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 07:17:14,917 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:14,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1139374053, now seen corresponding path program 1 times [2020-12-22 07:17:14,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:14,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153297324] [2020-12-22 07:17:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:15,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153297324] [2020-12-22 07:17:15,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:15,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:15,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508680] [2020-12-22 07:17:15,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:15,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:15,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:15,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:15,037 INFO L87 Difference]: Start difference. First operand 557 states and 766 transitions. Second operand 3 states. [2020-12-22 07:17:15,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:15,107 INFO L93 Difference]: Finished difference Result 1135 states and 1616 transitions. [2020-12-22 07:17:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:15,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-12-22 07:17:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:15,113 INFO L225 Difference]: With dead ends: 1135 [2020-12-22 07:17:15,113 INFO L226 Difference]: Without dead ends: 824 [2020-12-22 07:17:15,114 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 07:17:15,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-12-22 07:17:15,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 643. [2020-12-22 07:17:15,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-12-22 07:17:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 894 transitions. [2020-12-22 07:17:15,153 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 894 transitions. Word has length 179 [2020-12-22 07:17:15,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:15,154 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 894 transitions. [2020-12-22 07:17:15,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:15,154 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 894 transitions. [2020-12-22 07:17:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-22 07:17:15,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:15,157 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:15,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 07:17:15,157 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:15,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:15,158 INFO L82 PathProgramCache]: Analyzing trace with hash -920519335, now seen corresponding path program 1 times [2020-12-22 07:17:15,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:15,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602936962] [2020-12-22 07:17:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:17:15,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602936962] [2020-12-22 07:17:15,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967413471] [2020-12-22 07:17:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:15,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 07:17:15,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:15,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 07:17:15,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 07:17:15,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102929659] [2020-12-22 07:17:15,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:15,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:15,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:15,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:15,912 INFO L87 Difference]: Start difference. First operand 643 states and 894 transitions. Second operand 3 states. [2020-12-22 07:17:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:16,044 INFO L93 Difference]: Finished difference Result 1287 states and 1778 transitions. [2020-12-22 07:17:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:16,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-12-22 07:17:16,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:16,050 INFO L225 Difference]: With dead ends: 1287 [2020-12-22 07:17:16,050 INFO L226 Difference]: Without dead ends: 898 [2020-12-22 07:17:16,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:16,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-12-22 07:17:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 643. [2020-12-22 07:17:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-12-22 07:17:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 885 transitions. [2020-12-22 07:17:16,095 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 885 transitions. Word has length 179 [2020-12-22 07:17:16,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:16,096 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 885 transitions. [2020-12-22 07:17:16,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 885 transitions. [2020-12-22 07:17:16,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-12-22 07:17:16,098 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:16,099 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:16,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-22 07:17:16,312 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:16,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:16,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1340858399, now seen corresponding path program 1 times [2020-12-22 07:17:16,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:16,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706461073] [2020-12-22 07:17:16,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:17:16,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706461073] [2020-12-22 07:17:16,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334759463] [2020-12-22 07:17:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:16,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 07:17:16,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:17,058 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:17,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 07:17:17,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 07:17:17,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637532090] [2020-12-22 07:17:17,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:17,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:17,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:17,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:17,061 INFO L87 Difference]: Start difference. First operand 643 states and 885 transitions. Second operand 3 states. [2020-12-22 07:17:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:17,260 INFO L93 Difference]: Finished difference Result 1519 states and 2130 transitions. [2020-12-22 07:17:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:17,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-12-22 07:17:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:17,267 INFO L225 Difference]: With dead ends: 1519 [2020-12-22 07:17:17,268 INFO L226 Difference]: Without dead ends: 1130 [2020-12-22 07:17:17,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:17:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2020-12-22 07:17:17,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 643. [2020-12-22 07:17:17,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-12-22 07:17:17,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 884 transitions. [2020-12-22 07:17:17,317 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 884 transitions. Word has length 180 [2020-12-22 07:17:17,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:17,317 INFO L481 AbstractCegarLoop]: Abstraction has 643 states and 884 transitions. [2020-12-22 07:17:17,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 884 transitions. [2020-12-22 07:17:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-22 07:17:17,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:17,320 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:17,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:17,535 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:17,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:17,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1177602269, now seen corresponding path program 1 times [2020-12-22 07:17:17,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:17,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116750623] [2020-12-22 07:17:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:17:17,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116750623] [2020-12-22 07:17:17,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351503534] [2020-12-22 07:17:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:18,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 07:17:18,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:18,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 07:17:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:18,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 07:17:18,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-22 07:17:18,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189328836] [2020-12-22 07:17:18,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:18,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:18,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:18,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-22 07:17:18,411 INFO L87 Difference]: Start difference. First operand 643 states and 884 transitions. Second operand 4 states. [2020-12-22 07:17:18,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:18,573 INFO L93 Difference]: Finished difference Result 1058 states and 1477 transitions. [2020-12-22 07:17:18,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:18,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2020-12-22 07:17:18,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:18,580 INFO L225 Difference]: With dead ends: 1058 [2020-12-22 07:17:18,580 INFO L226 Difference]: Without dead ends: 1056 [2020-12-22 07:17:18,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-22 07:17:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-12-22 07:17:18,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 645. [2020-12-22 07:17:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-12-22 07:17:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 886 transitions. [2020-12-22 07:17:18,637 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 886 transitions. Word has length 181 [2020-12-22 07:17:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:18,637 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 886 transitions. [2020-12-22 07:17:18,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 886 transitions. [2020-12-22 07:17:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-22 07:17:18,640 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:18,640 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:18,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 07:17:18,856 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:18,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:18,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1249235817, now seen corresponding path program 1 times [2020-12-22 07:17:18,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:18,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220832188] [2020-12-22 07:17:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:19,120 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 07:17:19,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220832188] [2020-12-22 07:17:19,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499587187] [2020-12-22 07:17:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:19,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 759 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 07:17:19,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 07:17:19,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:17:19,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-12-22 07:17:19,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258773423] [2020-12-22 07:17:19,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 07:17:19,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:19,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 07:17:19,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-22 07:17:19,815 INFO L87 Difference]: Start difference. First operand 645 states and 886 transitions. Second operand 11 states. [2020-12-22 07:17:20,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:20,981 INFO L93 Difference]: Finished difference Result 3897 states and 5558 transitions. [2020-12-22 07:17:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-22 07:17:20,982 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 184 [2020-12-22 07:17:20,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:21,000 INFO L225 Difference]: With dead ends: 3897 [2020-12-22 07:17:21,000 INFO L226 Difference]: Without dead ends: 3506 [2020-12-22 07:17:21,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2020-12-22 07:17:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2020-12-22 07:17:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 871. [2020-12-22 07:17:21,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-12-22 07:17:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1176 transitions. [2020-12-22 07:17:21,084 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1176 transitions. Word has length 184 [2020-12-22 07:17:21,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:21,084 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1176 transitions. [2020-12-22 07:17:21,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 07:17:21,084 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1176 transitions. [2020-12-22 07:17:21,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-22 07:17:21,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:21,088 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:21,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-22 07:17:21,304 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:21,305 INFO L82 PathProgramCache]: Analyzing trace with hash -30627861, now seen corresponding path program 1 times [2020-12-22 07:17:21,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:21,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640071692] [2020-12-22 07:17:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:21,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640071692] [2020-12-22 07:17:21,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:21,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:21,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422250385] [2020-12-22 07:17:21,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:21,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:21,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:21,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:21,390 INFO L87 Difference]: Start difference. First operand 871 states and 1176 transitions. Second operand 3 states. [2020-12-22 07:17:21,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:21,585 INFO L93 Difference]: Finished difference Result 1949 states and 2675 transitions. [2020-12-22 07:17:21,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:21,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-12-22 07:17:21,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:21,594 INFO L225 Difference]: With dead ends: 1949 [2020-12-22 07:17:21,594 INFO L226 Difference]: Without dead ends: 1558 [2020-12-22 07:17:21,595 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 07:17:21,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2020-12-22 07:17:21,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 871. [2020-12-22 07:17:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-12-22 07:17:21,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1174 transitions. [2020-12-22 07:17:21,682 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1174 transitions. Word has length 184 [2020-12-22 07:17:21,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:21,683 INFO L481 AbstractCegarLoop]: Abstraction has 871 states and 1174 transitions. [2020-12-22 07:17:21,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1174 transitions. [2020-12-22 07:17:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-12-22 07:17:21,686 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:21,686 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:21,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 07:17:21,687 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:21,687 INFO L82 PathProgramCache]: Analyzing trace with hash -489339443, now seen corresponding path program 1 times [2020-12-22 07:17:21,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:21,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166530343] [2020-12-22 07:17:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-12-22 07:17:21,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166530343] [2020-12-22 07:17:21,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:21,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:17:21,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414037817] [2020-12-22 07:17:21,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:17:21,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:21,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:17:21,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:17:21,761 INFO L87 Difference]: Start difference. First operand 871 states and 1174 transitions. Second operand 3 states. [2020-12-22 07:17:21,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:21,861 INFO L93 Difference]: Finished difference Result 1463 states and 1989 transitions. [2020-12-22 07:17:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:17:21,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-12-22 07:17:21,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:21,865 INFO L225 Difference]: With dead ends: 1463 [2020-12-22 07:17:21,866 INFO L226 Difference]: Without dead ends: 713 [2020-12-22 07:17:21,867 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 07:17:21,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-12-22 07:17:21,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2020-12-22 07:17:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 712 states. [2020-12-22 07:17:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 941 transitions. [2020-12-22 07:17:21,918 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 941 transitions. Word has length 187 [2020-12-22 07:17:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:21,919 INFO L481 AbstractCegarLoop]: Abstraction has 712 states and 941 transitions. [2020-12-22 07:17:21,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:17:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 941 transitions. [2020-12-22 07:17:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-12-22 07:17:21,923 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:21,923 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:21,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 07:17:21,924 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:21,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1612175983, now seen corresponding path program 1 times [2020-12-22 07:17:21,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:21,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107690120] [2020-12-22 07:17:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:22,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107690120] [2020-12-22 07:17:22,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:22,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 07:17:22,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507417387] [2020-12-22 07:17:22,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 07:17:22,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:22,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 07:17:22,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 07:17:22,135 INFO L87 Difference]: Start difference. First operand 712 states and 941 transitions. Second operand 7 states. [2020-12-22 07:17:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:22,683 INFO L93 Difference]: Finished difference Result 1533 states and 2054 transitions. [2020-12-22 07:17:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 07:17:22,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 192 [2020-12-22 07:17:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:22,705 INFO L225 Difference]: With dead ends: 1533 [2020-12-22 07:17:22,706 INFO L226 Difference]: Without dead ends: 1153 [2020-12-22 07:17:22,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-22 07:17:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-12-22 07:17:22,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 831. [2020-12-22 07:17:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-12-22 07:17:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1091 transitions. [2020-12-22 07:17:22,796 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1091 transitions. Word has length 192 [2020-12-22 07:17:22,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:22,796 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 1091 transitions. [2020-12-22 07:17:22,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 07:17:22,797 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1091 transitions. [2020-12-22 07:17:22,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-22 07:17:22,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:22,800 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:22,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 07:17:22,801 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:22,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:22,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1609314537, now seen corresponding path program 1 times [2020-12-22 07:17:22,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:22,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911097062] [2020-12-22 07:17:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:22,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911097062] [2020-12-22 07:17:22,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:22,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 07:17:22,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211634723] [2020-12-22 07:17:22,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 07:17:22,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:22,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 07:17:22,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:22,950 INFO L87 Difference]: Start difference. First operand 831 states and 1091 transitions. Second operand 6 states. [2020-12-22 07:17:23,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:23,212 INFO L93 Difference]: Finished difference Result 2722 states and 3703 transitions. [2020-12-22 07:17:23,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 07:17:23,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2020-12-22 07:17:23,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:23,231 INFO L225 Difference]: With dead ends: 2722 [2020-12-22 07:17:23,231 INFO L226 Difference]: Without dead ends: 2217 [2020-12-22 07:17:23,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 07:17:23,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2020-12-22 07:17:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 908. [2020-12-22 07:17:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2020-12-22 07:17:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1189 transitions. [2020-12-22 07:17:23,347 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1189 transitions. Word has length 198 [2020-12-22 07:17:23,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:23,348 INFO L481 AbstractCegarLoop]: Abstraction has 908 states and 1189 transitions. [2020-12-22 07:17:23,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 07:17:23,348 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1189 transitions. [2020-12-22 07:17:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-22 07:17:23,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:23,351 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:23,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 07:17:23,352 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:23,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:23,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1927329879, now seen corresponding path program 1 times [2020-12-22 07:17:23,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:23,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604817448] [2020-12-22 07:17:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:23,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604817448] [2020-12-22 07:17:23,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:23,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:23,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536797641] [2020-12-22 07:17:23,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:23,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:23,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:23,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:23,467 INFO L87 Difference]: Start difference. First operand 908 states and 1189 transitions. Second operand 4 states. [2020-12-22 07:17:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:23,571 INFO L93 Difference]: Finished difference Result 1533 states and 2031 transitions. [2020-12-22 07:17:23,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 07:17:23,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2020-12-22 07:17:23,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:23,574 INFO L225 Difference]: With dead ends: 1533 [2020-12-22 07:17:23,574 INFO L226 Difference]: Without dead ends: 878 [2020-12-22 07:17:23,576 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 07:17:23,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-12-22 07:17:23,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2020-12-22 07:17:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-12-22 07:17:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1137 transitions. [2020-12-22 07:17:23,645 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1137 transitions. Word has length 198 [2020-12-22 07:17:23,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:23,645 INFO L481 AbstractCegarLoop]: Abstraction has 878 states and 1137 transitions. [2020-12-22 07:17:23,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:23,645 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1137 transitions. [2020-12-22 07:17:23,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-22 07:17:23,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:23,649 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:23,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 07:17:23,649 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:23,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1397307461, now seen corresponding path program 1 times [2020-12-22 07:17:23,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:23,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078178682] [2020-12-22 07:17:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:24,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078178682] [2020-12-22 07:17:24,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:24,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 07:17:24,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566738094] [2020-12-22 07:17:24,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 07:17:24,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:24,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 07:17:24,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-22 07:17:24,038 INFO L87 Difference]: Start difference. First operand 878 states and 1137 transitions. Second operand 10 states. [2020-12-22 07:17:25,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:25,547 INFO L93 Difference]: Finished difference Result 2515 states and 3295 transitions. [2020-12-22 07:17:25,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 07:17:25,548 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-12-22 07:17:25,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:25,553 INFO L225 Difference]: With dead ends: 2515 [2020-12-22 07:17:25,553 INFO L226 Difference]: Without dead ends: 1956 [2020-12-22 07:17:25,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:17:25,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2020-12-22 07:17:25,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 873. [2020-12-22 07:17:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-12-22 07:17:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1129 transitions. [2020-12-22 07:17:25,644 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1129 transitions. Word has length 199 [2020-12-22 07:17:25,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:25,645 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 1129 transitions. [2020-12-22 07:17:25,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 07:17:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1129 transitions. [2020-12-22 07:17:25,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-12-22 07:17:25,646 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:25,647 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:25,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 07:17:25,647 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:25,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:25,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1175526903, now seen corresponding path program 1 times [2020-12-22 07:17:25,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:25,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540423480] [2020-12-22 07:17:25,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:25,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540423480] [2020-12-22 07:17:25,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:25,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 07:17:25,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430640841] [2020-12-22 07:17:25,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 07:17:25,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:25,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 07:17:25,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 07:17:25,968 INFO L87 Difference]: Start difference. First operand 873 states and 1129 transitions. Second operand 10 states. [2020-12-22 07:17:27,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:27,318 INFO L93 Difference]: Finished difference Result 2499 states and 3274 transitions. [2020-12-22 07:17:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 07:17:27,319 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-12-22 07:17:27,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:27,324 INFO L225 Difference]: With dead ends: 2499 [2020-12-22 07:17:27,324 INFO L226 Difference]: Without dead ends: 1940 [2020-12-22 07:17:27,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:17:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2020-12-22 07:17:27,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 861. [2020-12-22 07:17:27,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-12-22 07:17:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1114 transitions. [2020-12-22 07:17:27,432 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1114 transitions. Word has length 199 [2020-12-22 07:17:27,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:27,432 INFO L481 AbstractCegarLoop]: Abstraction has 861 states and 1114 transitions. [2020-12-22 07:17:27,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 07:17:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1114 transitions. [2020-12-22 07:17:27,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-12-22 07:17:27,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:27,435 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:27,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 07:17:27,436 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:27,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:27,436 INFO L82 PathProgramCache]: Analyzing trace with hash 412852015, now seen corresponding path program 1 times [2020-12-22 07:17:27,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:27,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231476205] [2020-12-22 07:17:27,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-12-22 07:17:27,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231476205] [2020-12-22 07:17:27,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:17:27,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:17:27,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747138662] [2020-12-22 07:17:27,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 07:17:27,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:27,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 07:17:27,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 07:17:27,576 INFO L87 Difference]: Start difference. First operand 861 states and 1114 transitions. Second operand 4 states. [2020-12-22 07:17:27,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:17:27,879 INFO L93 Difference]: Finished difference Result 1649 states and 2159 transitions. [2020-12-22 07:17:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:17:27,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 208 [2020-12-22 07:17:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:17:27,883 INFO L225 Difference]: With dead ends: 1649 [2020-12-22 07:17:27,884 INFO L226 Difference]: Without dead ends: 1096 [2020-12-22 07:17:27,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 07:17:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-12-22 07:17:27,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 835. [2020-12-22 07:17:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 835 states. [2020-12-22 07:17:27,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1062 transitions. [2020-12-22 07:17:27,962 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1062 transitions. Word has length 208 [2020-12-22 07:17:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:17:27,963 INFO L481 AbstractCegarLoop]: Abstraction has 835 states and 1062 transitions. [2020-12-22 07:17:27,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 07:17:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1062 transitions. [2020-12-22 07:17:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-22 07:17:27,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:17:27,965 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:17:27,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 07:17:27,966 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:17:27,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:17:27,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1044588684, now seen corresponding path program 1 times [2020-12-22 07:17:27,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:17:27,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598707517] [2020-12-22 07:17:27,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:17:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:28,326 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:28,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598707517] [2020-12-22 07:17:28,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378453389] [2020-12-22 07:17:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:17:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:17:28,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 07:17:28,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:17:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:17:29,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:17:29,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2020-12-22 07:17:29,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385975420] [2020-12-22 07:17:29,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 07:17:29,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:17:29,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 07:17:29,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:17:29,460 INFO L87 Difference]: Start difference. First operand 835 states and 1062 transitions. Second operand 19 states. [2020-12-22 07:17:59,859 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-22 07:18:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:18:30,996 INFO L93 Difference]: Finished difference Result 20225 states and 26748 transitions. [2020-12-22 07:18:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 608 states. [2020-12-22 07:18:30,997 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 234 [2020-12-22 07:18:30,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:18:31,042 INFO L225 Difference]: With dead ends: 20225 [2020-12-22 07:18:31,042 INFO L226 Difference]: Without dead ends: 19665 [2020-12-22 07:18:31,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 622 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180750 ImplicationChecksByTransitivity, 47.0s TimeCoverageRelationStatistics Valid=32021, Invalid=356731, Unknown=0, NotChecked=0, Total=388752 [2020-12-22 07:18:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19665 states. [2020-12-22 07:18:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19665 to 2333. [2020-12-22 07:18:31,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2020-12-22 07:18:31,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 2951 transitions. [2020-12-22 07:18:31,578 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 2951 transitions. Word has length 234 [2020-12-22 07:18:31,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:18:31,578 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 2951 transitions. [2020-12-22 07:18:31,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 07:18:31,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 2951 transitions. [2020-12-22 07:18:31,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-22 07:18:31,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:18:31,583 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:18:31,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-12-22 07:18:31,799 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:18:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:18:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1678618060, now seen corresponding path program 1 times [2020-12-22 07:18:31,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:18:31,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411853963] [2020-12-22 07:18:31,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:18:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:18:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-12-22 07:18:32,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411853963] [2020-12-22 07:18:32,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:18:32,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:18:32,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483867748] [2020-12-22 07:18:32,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:18:32,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:18:32,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:18:32,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:18:32,184 INFO L87 Difference]: Start difference. First operand 2333 states and 2951 transitions. Second operand 5 states. [2020-12-22 07:18:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:18:32,475 INFO L93 Difference]: Finished difference Result 4330 states and 5499 transitions. [2020-12-22 07:18:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:18:32,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2020-12-22 07:18:32,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:18:32,481 INFO L225 Difference]: With dead ends: 4330 [2020-12-22 07:18:32,481 INFO L226 Difference]: Without dead ends: 2333 [2020-12-22 07:18:32,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:18:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2020-12-22 07:18:32,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2333. [2020-12-22 07:18:32,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2333 states. [2020-12-22 07:18:32,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 2947 transitions. [2020-12-22 07:18:32,800 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 2947 transitions. Word has length 234 [2020-12-22 07:18:32,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:18:32,801 INFO L481 AbstractCegarLoop]: Abstraction has 2333 states and 2947 transitions. [2020-12-22 07:18:32,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:18:32,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 2947 transitions. [2020-12-22 07:18:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-22 07:18:32,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:18:32,814 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:18:32,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 07:18:32,814 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:18:32,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:18:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash 145978965, now seen corresponding path program 1 times [2020-12-22 07:18:32,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:18:32,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795978463] [2020-12-22 07:18:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:18:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:18:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:18:33,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795978463] [2020-12-22 07:18:33,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595596199] [2020-12-22 07:18:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:18:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:18:33,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 07:18:33,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:18:34,709 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:18:34,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:18:34,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2020-12-22 07:18:34,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113832230] [2020-12-22 07:18:34,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 07:18:34,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:18:34,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 07:18:34,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-12-22 07:18:34,712 INFO L87 Difference]: Start difference. First operand 2333 states and 2947 transitions. Second operand 19 states. [2020-12-22 07:18:44,948 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-22 07:18:51,214 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-22 07:19:12,574 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-22 07:19:20,824 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-22 07:19:21,223 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-12-22 07:19:22,818 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-12-22 07:19:23,186 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-22 07:19:23,673 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-22 07:19:23,873 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-22 07:19:24,959 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-12-22 07:19:26,493 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-22 07:19:28,104 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-12-22 07:19:28,722 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:19:28,919 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-12-22 07:19:29,306 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-22 07:19:29,773 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:19:30,320 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2020-12-22 07:19:30,505 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2020-12-22 07:19:31,601 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-12-22 07:19:31,844 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-22 07:19:32,227 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-12-22 07:19:32,425 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2020-12-22 07:19:33,704 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:19:34,165 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-12-22 07:19:34,421 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2020-12-22 07:19:35,096 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2020-12-22 07:19:35,723 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-22 07:19:36,136 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-22 07:19:36,672 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-12-22 07:19:37,030 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:19:37,246 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-12-22 07:19:38,458 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2020-12-22 07:19:38,949 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-12-22 07:19:39,136 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-22 07:19:39,368 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-22 07:19:40,123 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-22 07:19:40,340 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2020-12-22 07:19:40,830 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-22 07:19:41,968 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-12-22 07:19:42,502 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-22 07:19:42,852 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-22 07:19:43,050 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2020-12-22 07:19:43,801 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-22 07:19:44,059 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-22 07:19:44,408 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-12-22 07:19:44,625 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-22 07:19:44,818 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-22 07:19:45,175 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2020-12-22 07:19:46,035 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-22 07:19:50,072 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-22 07:19:50,306 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-12-22 07:19:51,593 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-12-22 07:19:54,059 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-22 07:19:54,781 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-12-22 07:19:55,818 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2020-12-22 07:19:58,029 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2020-12-22 07:20:01,339 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-22 07:20:03,790 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2020-12-22 07:20:05,589 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-22 07:20:08,413 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-12-22 07:20:09,728 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-22 07:20:13,841 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-12-22 07:20:14,593 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2020-12-22 07:20:26,886 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2020-12-22 07:20:41,990 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-22 07:20:49,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:20:49,810 INFO L93 Difference]: Finished difference Result 37502 states and 47833 transitions. [2020-12-22 07:20:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 991 states. [2020-12-22 07:20:49,813 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2020-12-22 07:20:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:20:49,926 INFO L225 Difference]: With dead ends: 37502 [2020-12-22 07:20:49,926 INFO L226 Difference]: Without dead ends: 35582 [2020-12-22 07:20:50,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1005 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491639 ImplicationChecksByTransitivity, 112.9s TimeCoverageRelationStatistics Valid=56416, Invalid=956626, Unknown=0, NotChecked=0, Total=1013042 [2020-12-22 07:20:50,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35582 states. [2020-12-22 07:20:50,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35582 to 4930. [2020-12-22 07:20:50,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4930 states. [2020-12-22 07:20:50,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4930 states to 4930 states and 6261 transitions. [2020-12-22 07:20:50,903 INFO L78 Accepts]: Start accepts. Automaton has 4930 states and 6261 transitions. Word has length 235 [2020-12-22 07:20:50,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:20:50,904 INFO L481 AbstractCegarLoop]: Abstraction has 4930 states and 6261 transitions. [2020-12-22 07:20:50,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 07:20:50,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4930 states and 6261 transitions. [2020-12-22 07:20:50,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-22 07:20:50,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:20:50,913 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:20:51,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-22 07:20:51,130 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:20:51,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:20:51,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1737344747, now seen corresponding path program 1 times [2020-12-22 07:20:51,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:20:51,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534988889] [2020-12-22 07:20:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:20:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2020-12-22 07:20:51,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534988889] [2020-12-22 07:20:51,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:20:51,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 07:20:51,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100290818] [2020-12-22 07:20:51,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 07:20:51,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:20:51,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 07:20:51,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 07:20:51,616 INFO L87 Difference]: Start difference. First operand 4930 states and 6261 transitions. Second operand 5 states. [2020-12-22 07:20:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:20:52,349 INFO L93 Difference]: Finished difference Result 9529 states and 12124 transitions. [2020-12-22 07:20:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 07:20:52,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-12-22 07:20:52,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:20:52,364 INFO L225 Difference]: With dead ends: 9529 [2020-12-22 07:20:52,365 INFO L226 Difference]: Without dead ends: 4954 [2020-12-22 07:20:52,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 07:20:52,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2020-12-22 07:20:53,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4948. [2020-12-22 07:20:53,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4948 states. [2020-12-22 07:20:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 6267 transitions. [2020-12-22 07:20:53,368 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 6267 transitions. Word has length 235 [2020-12-22 07:20:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:20:53,368 INFO L481 AbstractCegarLoop]: Abstraction has 4948 states and 6267 transitions. [2020-12-22 07:20:53,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 07:20:53,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 6267 transitions. [2020-12-22 07:20:53,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-22 07:20:53,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:20:53,378 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:20:53,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 07:20:53,378 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:20:53,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:20:53,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1466521058, now seen corresponding path program 1 times [2020-12-22 07:20:53,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:20:53,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438611096] [2020-12-22 07:20:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:20:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-22 07:20:53,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438611096] [2020-12-22 07:20:53,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 07:20:53,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 07:20:53,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837391015] [2020-12-22 07:20:53,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 07:20:53,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:20:53,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 07:20:53,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 07:20:53,504 INFO L87 Difference]: Start difference. First operand 4948 states and 6267 transitions. Second operand 3 states. [2020-12-22 07:20:54,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 07:20:54,653 INFO L93 Difference]: Finished difference Result 9801 states and 12396 transitions. [2020-12-22 07:20:54,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 07:20:54,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-12-22 07:20:54,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 07:20:54,661 INFO L225 Difference]: With dead ends: 9801 [2020-12-22 07:20:54,662 INFO L226 Difference]: Without dead ends: 5227 [2020-12-22 07:20:54,666 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 07:20:54,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5227 states. [2020-12-22 07:20:55,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5227 to 4908. [2020-12-22 07:20:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4908 states. [2020-12-22 07:20:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4908 states to 4908 states and 6027 transitions. [2020-12-22 07:20:55,508 INFO L78 Accepts]: Start accepts. Automaton has 4908 states and 6027 transitions. Word has length 235 [2020-12-22 07:20:55,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 07:20:55,508 INFO L481 AbstractCegarLoop]: Abstraction has 4908 states and 6027 transitions. [2020-12-22 07:20:55,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 07:20:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4908 states and 6027 transitions. [2020-12-22 07:20:55,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-12-22 07:20:55,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 07:20:55,519 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 07:20:55,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 07:20:55,519 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 07:20:55,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 07:20:55,520 INFO L82 PathProgramCache]: Analyzing trace with hash -2072412374, now seen corresponding path program 1 times [2020-12-22 07:20:55,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 07:20:55,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485137] [2020-12-22 07:20:55,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 07:20:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 41 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-12-22 07:20:55,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485137] [2020-12-22 07:20:55,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967398383] [2020-12-22 07:20:55,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 07:20:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 07:20:56,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-22 07:20:56,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 07:20:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 35 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 07:20:57,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 07:20:57,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2020-12-22 07:20:57,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239731944] [2020-12-22 07:20:57,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-22 07:20:57,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 07:20:57,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-22 07:20:57,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-12-22 07:20:57,681 INFO L87 Difference]: Start difference. First operand 4908 states and 6027 transitions. Second operand 20 states.