/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/elevator_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:09:41,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:09:41,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:09:41,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:09:41,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:09:41,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:09:41,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:09:41,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:09:41,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:09:41,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:09:41,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:09:41,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:09:41,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:09:41,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:09:41,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:09:41,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:09:41,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:09:41,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:09:42,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:09:42,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:09:42,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:09:42,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:09:42,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:09:42,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:09:42,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:09:42,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:09:42,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:09:42,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:09:42,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:09:42,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:09:42,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:09:42,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:09:42,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:09:42,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:09:42,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:09:42,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:09:42,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:09:42,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:09:42,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:09:42,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:09:42,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:09:42,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:09:42,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:09:42,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:09:42,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:09:42,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:09:42,104 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:09:42,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:09:42,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:09:42,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:09:42,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:09:42,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:09:42,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:09:42,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:09:42,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:09:42,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:09:42,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:09:42,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:09:42,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:09:42,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:09:42,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:09:42,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:09:42,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:09:42,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:09:42,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:09:42,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:09:42,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:09:42,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:09:42,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:09:42,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:09:42,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:09:42,561 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:09:42,562 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:09:42,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product19.cil.c [2020-12-22 06:09:42,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ff0c64b/0e0be51897564c5ca03025667e7f9ac5/FLAG1cd760f62 [2020-12-22 06:09:43,559 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:09:43,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product19.cil.c [2020-12-22 06:09:43,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ff0c64b/0e0be51897564c5ca03025667e7f9ac5/FLAG1cd760f62 [2020-12-22 06:09:43,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00ff0c64b/0e0be51897564c5ca03025667e7f9ac5 [2020-12-22 06:09:43,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:09:43,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:09:43,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:09:43,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:09:43,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:09:43,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:09:43" (1/1) ... [2020-12-22 06:09:43,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62445750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:43, skipping insertion in model container [2020-12-22 06:09:43,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:09:43" (1/1) ... [2020-12-22 06:09:43,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:09:43,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:09:44,451 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product19.cil.c[55402,55415] [2020-12-22 06:09:44,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:09:44,532 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:09:44,692 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product19.cil.c[55402,55415] [2020-12-22 06:09:44,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:09:44,792 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:09:44,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44 WrapperNode [2020-12-22 06:09:44,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:09:44,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:09:44,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:09:44,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:09:44,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:44,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:45,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:09:45,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:09:45,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:09:45,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:09:45,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:45,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:45,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:45,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:45,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:45,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:45,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... [2020-12-22 06:09:46,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:09:46,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:09:46,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:09:46,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:09:46,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:09:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:09:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:09:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:09:46,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:09:56,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:09:56,682 INFO L299 CfgBuilder]: Removed 1497 assume(true) statements. [2020-12-22 06:09:56,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:09:56 BoogieIcfgContainer [2020-12-22 06:09:56,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:09:56,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:09:56,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:09:56,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:09:56,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:09:43" (1/3) ... [2020-12-22 06:09:56,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de571d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:09:56, skipping insertion in model container [2020-12-22 06:09:56,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:09:44" (2/3) ... [2020-12-22 06:09:56,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de571d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:09:56, skipping insertion in model container [2020-12-22 06:09:56,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:09:56" (3/3) ... [2020-12-22 06:09:56,698 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product19.cil.c [2020-12-22 06:09:56,705 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:09:56,712 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 06:09:56,730 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 06:09:56,775 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:09:56,775 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:09:56,775 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:09:56,776 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:09:56,776 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:09:56,776 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:09:56,776 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:09:56,776 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:09:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6303 states. [2020-12-22 06:09:56,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 06:09:56,902 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:56,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:09:56,904 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:56,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:56,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2044090443, now seen corresponding path program 1 times [2020-12-22 06:09:56,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:56,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439367787] [2020-12-22 06:09:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:57,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439367787] [2020-12-22 06:09:57,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:57,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:09:57,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185922960] [2020-12-22 06:09:57,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:09:57,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:57,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:09:57,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:09:57,459 INFO L87 Difference]: Start difference. First operand 6303 states. Second operand 4 states. [2020-12-22 06:09:58,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:58,900 INFO L93 Difference]: Finished difference Result 25037 states and 47129 transitions. [2020-12-22 06:09:58,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:09:58,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-12-22 06:09:58,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:59,064 INFO L225 Difference]: With dead ends: 25037 [2020-12-22 06:09:59,064 INFO L226 Difference]: Without dead ends: 18747 [2020-12-22 06:09:59,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:09:59,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18747 states. [2020-12-22 06:09:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18747 to 6311. [2020-12-22 06:09:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6311 states. [2020-12-22 06:09:59,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 11858 transitions. [2020-12-22 06:09:59,529 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 11858 transitions. Word has length 47 [2020-12-22 06:09:59,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:59,531 INFO L481 AbstractCegarLoop]: Abstraction has 6311 states and 11858 transitions. [2020-12-22 06:09:59,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:09:59,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 11858 transitions. [2020-12-22 06:09:59,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 06:09:59,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:59,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:09:59,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:09:59,539 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:59,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:59,540 INFO L82 PathProgramCache]: Analyzing trace with hash 677383978, now seen corresponding path program 1 times [2020-12-22 06:09:59,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:59,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90158395] [2020-12-22 06:09:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:59,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90158395] [2020-12-22 06:09:59,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:59,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:09:59,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690984025] [2020-12-22 06:09:59,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:09:59,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:59,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:09:59,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:09:59,706 INFO L87 Difference]: Start difference. First operand 6311 states and 11858 transitions. Second operand 3 states. [2020-12-22 06:09:59,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:59,975 INFO L93 Difference]: Finished difference Result 12538 states and 23563 transitions. [2020-12-22 06:09:59,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:09:59,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 06:09:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:00,038 INFO L225 Difference]: With dead ends: 12538 [2020-12-22 06:10:00,039 INFO L226 Difference]: Without dead ends: 6241 [2020-12-22 06:10:00,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2020-12-22 06:10:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6241. [2020-12-22 06:10:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2020-12-22 06:10:00,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 11718 transitions. [2020-12-22 06:10:00,276 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 11718 transitions. Word has length 48 [2020-12-22 06:10:00,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:00,277 INFO L481 AbstractCegarLoop]: Abstraction has 6241 states and 11718 transitions. [2020-12-22 06:10:00,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:00,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 11718 transitions. [2020-12-22 06:10:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:10:00,451 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:00,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:00,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:10:00,452 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:00,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:00,453 INFO L82 PathProgramCache]: Analyzing trace with hash -262441261, now seen corresponding path program 1 times [2020-12-22 06:10:00,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:00,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871283590] [2020-12-22 06:10:00,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:00,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:00,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871283590] [2020-12-22 06:10:00,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:00,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:00,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275322064] [2020-12-22 06:10:00,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:00,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:00,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:00,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:00,580 INFO L87 Difference]: Start difference. First operand 6241 states and 11718 transitions. Second operand 4 states. [2020-12-22 06:10:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:00,911 INFO L93 Difference]: Finished difference Result 12456 states and 23399 transitions. [2020-12-22 06:10:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:00,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-12-22 06:10:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:00,931 INFO L225 Difference]: With dead ends: 12456 [2020-12-22 06:10:00,931 INFO L226 Difference]: Without dead ends: 6241 [2020-12-22 06:10:00,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2020-12-22 06:10:01,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6241. [2020-12-22 06:10:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2020-12-22 06:10:01,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 11716 transitions. [2020-12-22 06:10:01,155 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 11716 transitions. Word has length 51 [2020-12-22 06:10:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:01,163 INFO L481 AbstractCegarLoop]: Abstraction has 6241 states and 11716 transitions. [2020-12-22 06:10:01,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 11716 transitions. [2020-12-22 06:10:01,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 06:10:01,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:01,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:01,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:10:01,167 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:01,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:01,167 INFO L82 PathProgramCache]: Analyzing trace with hash -572457608, now seen corresponding path program 1 times [2020-12-22 06:10:01,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:01,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487720596] [2020-12-22 06:10:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:01,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:01,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487720596] [2020-12-22 06:10:01,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:01,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:01,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694848998] [2020-12-22 06:10:01,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:01,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:01,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:01,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:01,292 INFO L87 Difference]: Start difference. First operand 6241 states and 11716 transitions. Second operand 4 states. [2020-12-22 06:10:01,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:01,629 INFO L93 Difference]: Finished difference Result 12456 states and 23396 transitions. [2020-12-22 06:10:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:01,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-12-22 06:10:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:01,649 INFO L225 Difference]: With dead ends: 12456 [2020-12-22 06:10:01,649 INFO L226 Difference]: Without dead ends: 6241 [2020-12-22 06:10:01,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:01,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2020-12-22 06:10:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6241. [2020-12-22 06:10:01,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2020-12-22 06:10:01,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 11714 transitions. [2020-12-22 06:10:01,903 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 11714 transitions. Word has length 52 [2020-12-22 06:10:01,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:01,903 INFO L481 AbstractCegarLoop]: Abstraction has 6241 states and 11714 transitions. [2020-12-22 06:10:01,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:01,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 11714 transitions. [2020-12-22 06:10:01,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 06:10:01,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:01,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:01,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:10:01,906 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:01,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:01,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1555559880, now seen corresponding path program 1 times [2020-12-22 06:10:01,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:01,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270954922] [2020-12-22 06:10:01,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:02,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270954922] [2020-12-22 06:10:02,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:02,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:02,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318792127] [2020-12-22 06:10:02,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:02,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:02,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:02,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:02,014 INFO L87 Difference]: Start difference. First operand 6241 states and 11714 transitions. Second operand 4 states. [2020-12-22 06:10:02,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:02,515 INFO L93 Difference]: Finished difference Result 12456 states and 23393 transitions. [2020-12-22 06:10:02,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:02,518 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-12-22 06:10:02,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:02,537 INFO L225 Difference]: With dead ends: 12456 [2020-12-22 06:10:02,538 INFO L226 Difference]: Without dead ends: 6241 [2020-12-22 06:10:02,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:02,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2020-12-22 06:10:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6241. [2020-12-22 06:10:02,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2020-12-22 06:10:02,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 11712 transitions. [2020-12-22 06:10:02,771 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 11712 transitions. Word has length 53 [2020-12-22 06:10:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:02,771 INFO L481 AbstractCegarLoop]: Abstraction has 6241 states and 11712 transitions. [2020-12-22 06:10:02,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 11712 transitions. [2020-12-22 06:10:02,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 06:10:02,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:02,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:02,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:10:02,776 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:02,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:02,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1929489347, now seen corresponding path program 1 times [2020-12-22 06:10:02,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:02,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032065199] [2020-12-22 06:10:02,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:02,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:02,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032065199] [2020-12-22 06:10:02,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:02,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:10:02,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548284452] [2020-12-22 06:10:02,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:10:02,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:02,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:10:02,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:10:02,880 INFO L87 Difference]: Start difference. First operand 6241 states and 11712 transitions. Second operand 4 states. [2020-12-22 06:10:03,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:03,239 INFO L93 Difference]: Finished difference Result 12456 states and 23390 transitions. [2020-12-22 06:10:03,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:03,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-12-22 06:10:03,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:03,258 INFO L225 Difference]: With dead ends: 12456 [2020-12-22 06:10:03,259 INFO L226 Difference]: Without dead ends: 6241 [2020-12-22 06:10:03,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2020-12-22 06:10:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6241. [2020-12-22 06:10:03,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6241 states. [2020-12-22 06:10:03,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 11710 transitions. [2020-12-22 06:10:03,524 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 11710 transitions. Word has length 54 [2020-12-22 06:10:03,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:03,525 INFO L481 AbstractCegarLoop]: Abstraction has 6241 states and 11710 transitions. [2020-12-22 06:10:03,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:10:03,525 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 11710 transitions. [2020-12-22 06:10:03,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 06:10:03,527 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:03,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:03,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:10:03,528 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:03,533 INFO L82 PathProgramCache]: Analyzing trace with hash -598931043, now seen corresponding path program 1 times [2020-12-22 06:10:03,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:03,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134350332] [2020-12-22 06:10:03,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:03,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:03,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134350332] [2020-12-22 06:10:03,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:03,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:10:03,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927009099] [2020-12-22 06:10:03,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:10:03,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:03,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:10:03,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:10:03,635 INFO L87 Difference]: Start difference. First operand 6241 states and 11710 transitions. Second operand 7 states. [2020-12-22 06:10:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:05,530 INFO L93 Difference]: Finished difference Result 22254 states and 41674 transitions. [2020-12-22 06:10:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 06:10:05,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2020-12-22 06:10:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:05,580 INFO L225 Difference]: With dead ends: 22254 [2020-12-22 06:10:05,581 INFO L226 Difference]: Without dead ends: 16083 [2020-12-22 06:10:05,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-12-22 06:10:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16083 states. [2020-12-22 06:10:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16083 to 10969. [2020-12-22 06:10:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10969 states. [2020-12-22 06:10:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10969 states to 10969 states and 20592 transitions. [2020-12-22 06:10:06,176 INFO L78 Accepts]: Start accepts. Automaton has 10969 states and 20592 transitions. Word has length 55 [2020-12-22 06:10:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:06,176 INFO L481 AbstractCegarLoop]: Abstraction has 10969 states and 20592 transitions. [2020-12-22 06:10:06,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:10:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 10969 states and 20592 transitions. [2020-12-22 06:10:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 06:10:06,178 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:06,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:06,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:10:06,179 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:06,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1358521118, now seen corresponding path program 1 times [2020-12-22 06:10:06,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:06,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007827142] [2020-12-22 06:10:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:06,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007827142] [2020-12-22 06:10:06,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:06,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:06,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803166922] [2020-12-22 06:10:06,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:06,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:06,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:06,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:06,316 INFO L87 Difference]: Start difference. First operand 10969 states and 20592 transitions. Second operand 5 states. [2020-12-22 06:10:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:11,404 INFO L93 Difference]: Finished difference Result 91050 states and 171057 transitions. [2020-12-22 06:10:11,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:10:11,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-12-22 06:10:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:11,753 INFO L225 Difference]: With dead ends: 91050 [2020-12-22 06:10:11,753 INFO L226 Difference]: Without dead ends: 80151 [2020-12-22 06:10:11,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:10:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80151 states. [2020-12-22 06:10:13,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80151 to 20603. [2020-12-22 06:10:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20603 states. [2020-12-22 06:10:13,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20603 states to 20603 states and 38673 transitions. [2020-12-22 06:10:13,554 INFO L78 Accepts]: Start accepts. Automaton has 20603 states and 38673 transitions. Word has length 55 [2020-12-22 06:10:13,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:13,555 INFO L481 AbstractCegarLoop]: Abstraction has 20603 states and 38673 transitions. [2020-12-22 06:10:13,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:13,555 INFO L276 IsEmpty]: Start isEmpty. Operand 20603 states and 38673 transitions. [2020-12-22 06:10:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 06:10:13,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:13,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:13,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:10:13,557 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:13,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:13,558 INFO L82 PathProgramCache]: Analyzing trace with hash 491221222, now seen corresponding path program 1 times [2020-12-22 06:10:13,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:13,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769986785] [2020-12-22 06:10:13,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:13,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769986785] [2020-12-22 06:10:13,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:13,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:13,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108831317] [2020-12-22 06:10:13,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:13,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:13,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:13,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:13,619 INFO L87 Difference]: Start difference. First operand 20603 states and 38673 transitions. Second operand 3 states. [2020-12-22 06:10:15,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:15,577 INFO L93 Difference]: Finished difference Result 60809 states and 114143 transitions. [2020-12-22 06:10:15,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:15,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-12-22 06:10:15,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:15,694 INFO L225 Difference]: With dead ends: 60809 [2020-12-22 06:10:15,695 INFO L226 Difference]: Without dead ends: 40238 [2020-12-22 06:10:15,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:15,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40238 states. [2020-12-22 06:10:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40238 to 20479. [2020-12-22 06:10:16,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20479 states. [2020-12-22 06:10:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20479 states to 20479 states and 38425 transitions. [2020-12-22 06:10:16,691 INFO L78 Accepts]: Start accepts. Automaton has 20479 states and 38425 transitions. Word has length 56 [2020-12-22 06:10:16,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:16,691 INFO L481 AbstractCegarLoop]: Abstraction has 20479 states and 38425 transitions. [2020-12-22 06:10:16,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 20479 states and 38425 transitions. [2020-12-22 06:10:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 06:10:16,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:16,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:16,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:10:16,694 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:16,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:16,694 INFO L82 PathProgramCache]: Analyzing trace with hash -136862999, now seen corresponding path program 1 times [2020-12-22 06:10:16,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:16,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036973175] [2020-12-22 06:10:16,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:16,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036973175] [2020-12-22 06:10:16,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:16,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:16,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667685508] [2020-12-22 06:10:16,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:16,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:16,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:16,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:16,771 INFO L87 Difference]: Start difference. First operand 20479 states and 38425 transitions. Second operand 5 states. [2020-12-22 06:10:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:20,431 INFO L93 Difference]: Finished difference Result 66447 states and 124599 transitions. [2020-12-22 06:10:20,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:10:20,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-12-22 06:10:20,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:20,526 INFO L225 Difference]: With dead ends: 66447 [2020-12-22 06:10:20,526 INFO L226 Difference]: Without dead ends: 46002 [2020-12-22 06:10:20,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:10:20,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46002 states. [2020-12-22 06:10:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46002 to 28288. [2020-12-22 06:10:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28288 states. [2020-12-22 06:10:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28288 states to 28288 states and 52646 transitions. [2020-12-22 06:10:22,194 INFO L78 Accepts]: Start accepts. Automaton has 28288 states and 52646 transitions. Word has length 56 [2020-12-22 06:10:22,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:22,194 INFO L481 AbstractCegarLoop]: Abstraction has 28288 states and 52646 transitions. [2020-12-22 06:10:22,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 28288 states and 52646 transitions. [2020-12-22 06:10:22,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 06:10:22,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:22,196 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:22,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:10:22,197 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:22,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:22,197 INFO L82 PathProgramCache]: Analyzing trace with hash -424208374, now seen corresponding path program 1 times [2020-12-22 06:10:22,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:22,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956750313] [2020-12-22 06:10:22,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:22,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956750313] [2020-12-22 06:10:22,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:22,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:22,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262011264] [2020-12-22 06:10:22,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:22,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:22,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:22,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:22,272 INFO L87 Difference]: Start difference. First operand 28288 states and 52646 transitions. Second operand 5 states. [2020-12-22 06:10:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:24,791 INFO L93 Difference]: Finished difference Result 83472 states and 155456 transitions. [2020-12-22 06:10:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:10:24,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-12-22 06:10:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:24,909 INFO L225 Difference]: With dead ends: 83472 [2020-12-22 06:10:24,910 INFO L226 Difference]: Without dead ends: 55224 [2020-12-22 06:10:24,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:10:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55224 states. [2020-12-22 06:10:26,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55224 to 28288. [2020-12-22 06:10:26,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28288 states. [2020-12-22 06:10:26,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28288 states to 28288 states and 52526 transitions. [2020-12-22 06:10:26,579 INFO L78 Accepts]: Start accepts. Automaton has 28288 states and 52526 transitions. Word has length 59 [2020-12-22 06:10:26,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:26,580 INFO L481 AbstractCegarLoop]: Abstraction has 28288 states and 52526 transitions. [2020-12-22 06:10:26,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 28288 states and 52526 transitions. [2020-12-22 06:10:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 06:10:26,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:26,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:26,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:10:26,582 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:26,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash -895008859, now seen corresponding path program 1 times [2020-12-22 06:10:26,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:26,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011765748] [2020-12-22 06:10:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:26,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011765748] [2020-12-22 06:10:26,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:26,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:26,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937028548] [2020-12-22 06:10:26,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:26,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:26,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:26,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:26,671 INFO L87 Difference]: Start difference. First operand 28288 states and 52526 transitions. Second operand 5 states. [2020-12-22 06:10:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:34,870 INFO L93 Difference]: Finished difference Result 239811 states and 446576 transitions. [2020-12-22 06:10:34,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:10:34,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-12-22 06:10:34,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:35,424 INFO L225 Difference]: With dead ends: 239811 [2020-12-22 06:10:35,424 INFO L226 Difference]: Without dead ends: 211589 [2020-12-22 06:10:35,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:10:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211589 states. [2020-12-22 06:10:38,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211589 to 54490. [2020-12-22 06:10:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54490 states. [2020-12-22 06:10:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54490 states to 54490 states and 101128 transitions. [2020-12-22 06:10:38,598 INFO L78 Accepts]: Start accepts. Automaton has 54490 states and 101128 transitions. Word has length 60 [2020-12-22 06:10:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:38,599 INFO L481 AbstractCegarLoop]: Abstraction has 54490 states and 101128 transitions. [2020-12-22 06:10:38,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:38,599 INFO L276 IsEmpty]: Start isEmpty. Operand 54490 states and 101128 transitions. [2020-12-22 06:10:38,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 06:10:38,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:38,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:38,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:10:38,601 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:38,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:38,602 INFO L82 PathProgramCache]: Analyzing trace with hash 860586479, now seen corresponding path program 1 times [2020-12-22 06:10:38,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:38,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224697841] [2020-12-22 06:10:38,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:38,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224697841] [2020-12-22 06:10:38,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:38,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:38,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163231736] [2020-12-22 06:10:38,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:38,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:38,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:38,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:38,668 INFO L87 Difference]: Start difference. First operand 54490 states and 101128 transitions. Second operand 3 states. [2020-12-22 06:10:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:42,836 INFO L93 Difference]: Finished difference Result 161198 states and 299491 transitions. [2020-12-22 06:10:42,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:42,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 06:10:42,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:43,066 INFO L225 Difference]: With dead ends: 161198 [2020-12-22 06:10:43,066 INFO L226 Difference]: Without dead ends: 106745 [2020-12-22 06:10:43,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106745 states. [2020-12-22 06:10:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106745 to 54236. [2020-12-22 06:10:45,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54236 states. [2020-12-22 06:10:45,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54236 states to 54236 states and 100627 transitions. [2020-12-22 06:10:45,607 INFO L78 Accepts]: Start accepts. Automaton has 54236 states and 100627 transitions. Word has length 61 [2020-12-22 06:10:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:45,607 INFO L481 AbstractCegarLoop]: Abstraction has 54236 states and 100627 transitions. [2020-12-22 06:10:45,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:45,607 INFO L276 IsEmpty]: Start isEmpty. Operand 54236 states and 100627 transitions. [2020-12-22 06:10:45,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 06:10:45,609 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:45,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:45,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:10:45,610 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:45,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:45,610 INFO L82 PathProgramCache]: Analyzing trace with hash 2010272297, now seen corresponding path program 1 times [2020-12-22 06:10:45,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:45,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986215579] [2020-12-22 06:10:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:45,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986215579] [2020-12-22 06:10:45,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:45,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:45,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214964355] [2020-12-22 06:10:45,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:45,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:45,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:45,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:45,664 INFO L87 Difference]: Start difference. First operand 54236 states and 100627 transitions. Second operand 3 states. [2020-12-22 06:10:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:49,761 INFO L93 Difference]: Finished difference Result 160697 states and 298518 transitions. [2020-12-22 06:10:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:49,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-12-22 06:10:49,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:49,938 INFO L225 Difference]: With dead ends: 160697 [2020-12-22 06:10:49,938 INFO L226 Difference]: Without dead ends: 106504 [2020-12-22 06:10:49,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106504 states. [2020-12-22 06:10:52,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106504 to 54124. [2020-12-22 06:10:52,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54124 states. [2020-12-22 06:10:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54124 states to 54124 states and 100291 transitions. [2020-12-22 06:10:52,667 INFO L78 Accepts]: Start accepts. Automaton has 54124 states and 100291 transitions. Word has length 65 [2020-12-22 06:10:52,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:52,668 INFO L481 AbstractCegarLoop]: Abstraction has 54124 states and 100291 transitions. [2020-12-22 06:10:52,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 54124 states and 100291 transitions. [2020-12-22 06:10:52,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 06:10:52,669 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:52,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:52,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:10:52,669 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:52,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:52,670 INFO L82 PathProgramCache]: Analyzing trace with hash -421769902, now seen corresponding path program 1 times [2020-12-22 06:10:52,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:52,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967810520] [2020-12-22 06:10:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:52,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967810520] [2020-12-22 06:10:52,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:52,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:52,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67818224] [2020-12-22 06:10:52,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:52,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:52,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:52,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:52,738 INFO L87 Difference]: Start difference. First operand 54124 states and 100291 transitions. Second operand 5 states. [2020-12-22 06:11:07,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:07,457 INFO L93 Difference]: Finished difference Result 448937 states and 835008 transitions. [2020-12-22 06:11:07,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:11:07,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-12-22 06:11:07,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:08,322 INFO L225 Difference]: With dead ends: 448937 [2020-12-22 06:11:08,322 INFO L226 Difference]: Without dead ends: 394874 [2020-12-22 06:11:08,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:11:08,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394874 states. [2020-12-22 06:11:14,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394874 to 105472. [2020-12-22 06:11:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105472 states. [2020-12-22 06:11:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105472 states to 105472 states and 195333 transitions. [2020-12-22 06:11:15,217 INFO L78 Accepts]: Start accepts. Automaton has 105472 states and 195333 transitions. Word has length 66 [2020-12-22 06:11:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:15,217 INFO L481 AbstractCegarLoop]: Abstraction has 105472 states and 195333 transitions. [2020-12-22 06:11:15,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:11:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 105472 states and 195333 transitions. [2020-12-22 06:11:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 06:11:15,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:15,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:15,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 06:11:15,219 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:15,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:15,220 INFO L82 PathProgramCache]: Analyzing trace with hash 185986115, now seen corresponding path program 1 times [2020-12-22 06:11:15,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:15,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146700600] [2020-12-22 06:11:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:15,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146700600] [2020-12-22 06:11:15,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:15,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:11:15,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818987484] [2020-12-22 06:11:15,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:11:15,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:15,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:11:15,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:15,294 INFO L87 Difference]: Start difference. First operand 105472 states and 195333 transitions. Second operand 3 states. [2020-12-22 06:11:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:11:23,189 INFO L93 Difference]: Finished difference Result 312673 states and 580101 transitions. [2020-12-22 06:11:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:11:23,190 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 06:11:23,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:11:23,616 INFO L225 Difference]: With dead ends: 312673 [2020-12-22 06:11:23,616 INFO L226 Difference]: Without dead ends: 207251 [2020-12-22 06:11:23,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:11:23,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207251 states. [2020-12-22 06:11:28,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207251 to 105364. [2020-12-22 06:11:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105364 states. [2020-12-22 06:11:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105364 states to 105364 states and 194793 transitions. [2020-12-22 06:11:29,109 INFO L78 Accepts]: Start accepts. Automaton has 105364 states and 194793 transitions. Word has length 71 [2020-12-22 06:11:29,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:11:29,109 INFO L481 AbstractCegarLoop]: Abstraction has 105364 states and 194793 transitions. [2020-12-22 06:11:29,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:11:29,109 INFO L276 IsEmpty]: Start isEmpty. Operand 105364 states and 194793 transitions. [2020-12-22 06:11:29,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 06:11:29,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:11:29,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:11:29,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 06:11:29,110 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:11:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:11:29,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1670927944, now seen corresponding path program 1 times [2020-12-22 06:11:29,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:11:29,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700875321] [2020-12-22 06:11:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:11:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:11:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:11:29,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700875321] [2020-12-22 06:11:29,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:11:29,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:11:29,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372630990] [2020-12-22 06:11:29,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:11:29,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:11:29,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:11:29,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:11:29,181 INFO L87 Difference]: Start difference. First operand 105364 states and 194793 transitions. Second operand 5 states.