/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_spec13_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:54:05,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:54:05,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:54:05,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:54:05,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:54:05,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:54:05,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:54:05,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:54:05,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:54:05,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:54:05,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:54:05,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:54:05,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:54:05,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:54:05,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:54:05,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:54:05,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:54:05,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:54:05,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:54:05,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:54:05,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:54:05,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:54:05,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:54:05,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:54:05,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 05:54:05,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 05:54:05,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 05:54:05,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 05:54:05,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 05:54:05,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 05:54:05,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:54:05,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:54:05,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:54:05,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:54:05,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:54:05,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:54:05,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:54:05,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:54:05,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:54:05,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:54:05,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:54:05,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:54:05,193 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:54:05,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:54:05,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:54:05,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:54:05,195 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:54:05,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:54:05,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:54:05,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:54:05,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:54:05,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:54:05,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:54:05,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:54:05,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:54:05,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:54:05,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:54:05,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:54:05,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:54:05,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:54:05,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:54:05,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:54:05,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:54:05,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:54:05,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:54:05,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:54:05,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:54:05,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:54:05,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:54:05,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:54:05,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:54:05,585 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:54:05,585 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:54:05,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2020-12-22 05:54:05,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ba6169f/96c7ce084c1741a9aae1be2f5ee16ef5/FLAGb9030dfed [2020-12-22 05:54:06,518 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:54:06,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2020-12-22 05:54:06,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ba6169f/96c7ce084c1741a9aae1be2f5ee16ef5/FLAGb9030dfed [2020-12-22 05:54:06,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ba6169f/96c7ce084c1741a9aae1be2f5ee16ef5 [2020-12-22 05:54:06,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:54:06,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:54:06,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:54:06,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:54:06,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:54:06,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:54:06" (1/1) ... [2020-12-22 05:54:06,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281d018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:06, skipping insertion in model container [2020-12-22 05:54:06,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:54:06" (1/1) ... [2020-12-22 05:54:06,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:54:06,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:54:07,376 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_spec13_product24.cil.c[51166,51179] [2020-12-22 05:54:07,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:54:07,425 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:54:07,555 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_spec13_product24.cil.c[51166,51179] [2020-12-22 05:54:07,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:54:07,759 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:54:07,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07 WrapperNode [2020-12-22 05:54:07,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:54:07,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:54:07,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:54:07,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:54:07,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:07,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:09,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:54:09,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:54:09,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:54:09,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:54:09,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:09,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:09,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:09,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:09,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:10,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:10,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (1/1) ... [2020-12-22 05:54:10,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:54:10,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:54:10,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:54:10,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:54:10,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (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 05:54:11,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:54:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:54:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:54:11,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:54:44,774 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:54:44,774 INFO L299 CfgBuilder]: Removed 3931 assume(true) statements. [2020-12-22 05:54:44,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:54:44 BoogieIcfgContainer [2020-12-22 05:54:44,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:54:44,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:54:44,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:54:44,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:54:44,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:54:06" (1/3) ... [2020-12-22 05:54:44,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0baa3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:54:44, skipping insertion in model container [2020-12-22 05:54:44,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:07" (2/3) ... [2020-12-22 05:54:44,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0baa3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:54:44, skipping insertion in model container [2020-12-22 05:54:44,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:54:44" (3/3) ... [2020-12-22 05:54:44,802 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.c [2020-12-22 05:54:44,809 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:54:44,819 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 05:54:44,838 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 05:54:44,917 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:54:44,917 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:54:44,917 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:54:44,918 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:54:44,918 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:54:44,918 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:54:44,918 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:54:44,918 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:54:45,233 INFO L276 IsEmpty]: Start isEmpty. Operand 17686 states. [2020-12-22 05:54:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 05:54:45,253 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:54:45,254 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] [2020-12-22 05:54:45,254 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 05:54:45,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:54:45,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1503120771, now seen corresponding path program 1 times [2020-12-22 05:54:45,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:54:45,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232581520] [2020-12-22 05:54:45,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:54:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:54:45,756 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 05:54:45,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232581520] [2020-12-22 05:54:45,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:54:45,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:54:45,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110759994] [2020-12-22 05:54:45,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:54:45,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:54:45,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:54:45,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:54:45,789 INFO L87 Difference]: Start difference. First operand 17686 states. Second operand 5 states. [2020-12-22 05:54:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:54:47,314 INFO L93 Difference]: Finished difference Result 42448 states and 80232 transitions. [2020-12-22 05:54:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:54:47,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-22 05:54:47,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:54:47,511 INFO L225 Difference]: With dead ends: 42448 [2020-12-22 05:54:47,511 INFO L226 Difference]: Without dead ends: 24766 [2020-12-22 05:54:47,557 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 05:54:47,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24766 states. [2020-12-22 05:54:48,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24766 to 17682. [2020-12-22 05:54:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17682 states. [2020-12-22 05:54:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17682 states to 17682 states and 33288 transitions. [2020-12-22 05:54:48,317 INFO L78 Accepts]: Start accepts. Automaton has 17682 states and 33288 transitions. Word has length 41 [2020-12-22 05:54:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:54:48,318 INFO L481 AbstractCegarLoop]: Abstraction has 17682 states and 33288 transitions. [2020-12-22 05:54:48,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:54:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 17682 states and 33288 transitions. [2020-12-22 05:54:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 05:54:48,324 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:54:48,325 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] [2020-12-22 05:54:48,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:54:48,326 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 05:54:48,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:54:48,328 INFO L82 PathProgramCache]: Analyzing trace with hash -502819147, now seen corresponding path program 1 times [2020-12-22 05:54:48,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:54:48,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169859316] [2020-12-22 05:54:48,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:54:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:54:48,511 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 05:54:48,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169859316] [2020-12-22 05:54:48,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:54:48,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:54:48,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249929768] [2020-12-22 05:54:48,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:54:48,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:54:48,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:54:48,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:54:48,517 INFO L87 Difference]: Start difference. First operand 17682 states and 33288 transitions. Second operand 4 states. [2020-12-22 05:54:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:54:51,224 INFO L93 Difference]: Finished difference Result 70490 states and 132698 transitions. [2020-12-22 05:54:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:54:51,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-12-22 05:54:51,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:54:51,375 INFO L225 Difference]: With dead ends: 70490 [2020-12-22 05:54:51,376 INFO L226 Difference]: Without dead ends: 52831 [2020-12-22 05:54:51,407 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 05:54:51,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52831 states. [2020-12-22 05:54:52,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52831 to 17697. [2020-12-22 05:54:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17697 states. [2020-12-22 05:54:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17697 states to 17697 states and 33303 transitions. [2020-12-22 05:54:52,591 INFO L78 Accepts]: Start accepts. Automaton has 17697 states and 33303 transitions. Word has length 43 [2020-12-22 05:54:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:54:52,591 INFO L481 AbstractCegarLoop]: Abstraction has 17697 states and 33303 transitions. [2020-12-22 05:54:52,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:54:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 17697 states and 33303 transitions. [2020-12-22 05:54:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 05:54:52,595 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:54:52,595 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] [2020-12-22 05:54:52,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:54:52,596 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 05:54:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:54:52,596 INFO L82 PathProgramCache]: Analyzing trace with hash 53260963, now seen corresponding path program 1 times [2020-12-22 05:54:52,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:54:52,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540123909] [2020-12-22 05:54:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:54:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:54:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:54:52,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540123909] [2020-12-22 05:54:52,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:54:52,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 05:54:52,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534089264] [2020-12-22 05:54:52,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:54:52,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:54:52,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:54:52,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:54:52,663 INFO L87 Difference]: Start difference. First operand 17697 states and 33303 transitions. Second operand 3 states. [2020-12-22 05:54:53,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:54:53,993 INFO L93 Difference]: Finished difference Result 52902 states and 99572 transitions. [2020-12-22 05:54:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:54:53,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-22 05:54:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:54:54,095 INFO L225 Difference]: With dead ends: 52902 [2020-12-22 05:54:54,095 INFO L226 Difference]: Without dead ends: 35218 [2020-12-22 05:54:54,125 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 05:54:54,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35218 states. [2020-12-22 05:54:55,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35218 to 17663. [2020-12-22 05:54:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17663 states. [2020-12-22 05:54:55,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17663 states to 17663 states and 33235 transitions. [2020-12-22 05:54:55,119 INFO L78 Accepts]: Start accepts. Automaton has 17663 states and 33235 transitions. Word has length 45 [2020-12-22 05:54:55,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:54:55,126 INFO L481 AbstractCegarLoop]: Abstraction has 17663 states and 33235 transitions. [2020-12-22 05:54:55,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:54:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 17663 states and 33235 transitions. [2020-12-22 05:54:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 05:54:55,129 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:54:55,129 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 05:54:55,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:54:55,130 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 05:54:55,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:54:55,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1858063920, now seen corresponding path program 1 times [2020-12-22 05:54:55,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:54:55,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914147922] [2020-12-22 05:54:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:54:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:54:55,231 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 05:54:55,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914147922] [2020-12-22 05:54:55,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:54:55,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:54:55,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112256499] [2020-12-22 05:54:55,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:54:55,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:54:55,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:54:55,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:54:55,236 INFO L87 Difference]: Start difference. First operand 17663 states and 33235 transitions. Second operand 5 states. [2020-12-22 05:54:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:54:56,508 INFO L93 Difference]: Finished difference Result 42355 states and 79707 transitions. [2020-12-22 05:54:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:54:56,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-22 05:54:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:54:56,617 INFO L225 Difference]: With dead ends: 42355 [2020-12-22 05:54:56,618 INFO L226 Difference]: Without dead ends: 24711 [2020-12-22 05:54:56,646 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 05:54:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24711 states. [2020-12-22 05:54:57,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24711 to 17663. [2020-12-22 05:54:57,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17663 states. [2020-12-22 05:54:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17663 states to 17663 states and 33229 transitions. [2020-12-22 05:54:57,416 INFO L78 Accepts]: Start accepts. Automaton has 17663 states and 33229 transitions. Word has length 47 [2020-12-22 05:54:57,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:54:57,417 INFO L481 AbstractCegarLoop]: Abstraction has 17663 states and 33229 transitions. [2020-12-22 05:54:57,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:54:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 17663 states and 33229 transitions. [2020-12-22 05:54:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 05:54:57,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:54:57,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:54:57,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 05:54:57,420 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 05:54:57,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:54:57,420 INFO L82 PathProgramCache]: Analyzing trace with hash -68318262, now seen corresponding path program 1 times [2020-12-22 05:54:57,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:54:57,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151979762] [2020-12-22 05:54:57,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:54:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:54:57,521 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 05:54:57,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151979762] [2020-12-22 05:54:57,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:54:57,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:54:57,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570598385] [2020-12-22 05:54:57,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:54:57,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:54:57,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:54:57,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:54:57,525 INFO L87 Difference]: Start difference. First operand 17663 states and 33229 transitions. Second operand 4 states. [2020-12-22 05:54:59,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:54:59,551 INFO L93 Difference]: Finished difference Result 70432 states and 132551 transitions. [2020-12-22 05:54:59,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:54:59,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-12-22 05:54:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:54:59,657 INFO L225 Difference]: With dead ends: 70432 [2020-12-22 05:54:59,658 INFO L226 Difference]: Without dead ends: 52794 [2020-12-22 05:54:59,680 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 05:54:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52794 states. [2020-12-22 05:55:00,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52794 to 17667. [2020-12-22 05:55:00,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17667 states. [2020-12-22 05:55:00,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17667 states to 17667 states and 33232 transitions. [2020-12-22 05:55:00,823 INFO L78 Accepts]: Start accepts. Automaton has 17667 states and 33232 transitions. Word has length 49 [2020-12-22 05:55:00,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:00,823 INFO L481 AbstractCegarLoop]: Abstraction has 17667 states and 33232 transitions. [2020-12-22 05:55:00,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:00,824 INFO L276 IsEmpty]: Start isEmpty. Operand 17667 states and 33232 transitions. [2020-12-22 05:55:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 05:55:00,826 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:00,827 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] [2020-12-22 05:55:00,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 05:55:00,827 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 05:55:00,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:00,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1698304076, now seen corresponding path program 1 times [2020-12-22 05:55:00,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:00,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709740144] [2020-12-22 05:55:00,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:00,892 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 05:55:00,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709740144] [2020-12-22 05:55:00,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:00,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:00,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550491056] [2020-12-22 05:55:00,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:00,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:00,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:00,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:00,895 INFO L87 Difference]: Start difference. First operand 17667 states and 33232 transitions. Second operand 4 states. [2020-12-22 05:55:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:02,952 INFO L93 Difference]: Finished difference Result 70441 states and 132557 transitions. [2020-12-22 05:55:02,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:02,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-12-22 05:55:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:03,052 INFO L225 Difference]: With dead ends: 70441 [2020-12-22 05:55:03,053 INFO L226 Difference]: Without dead ends: 52799 [2020-12-22 05:55:03,087 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 05:55:03,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52799 states. [2020-12-22 05:55:04,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52799 to 17673. [2020-12-22 05:55:04,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17673 states. [2020-12-22 05:55:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17673 states to 17673 states and 33237 transitions. [2020-12-22 05:55:04,073 INFO L78 Accepts]: Start accepts. Automaton has 17673 states and 33237 transitions. Word has length 50 [2020-12-22 05:55:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:04,074 INFO L481 AbstractCegarLoop]: Abstraction has 17673 states and 33237 transitions. [2020-12-22 05:55:04,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:04,074 INFO L276 IsEmpty]: Start isEmpty. Operand 17673 states and 33237 transitions. [2020-12-22 05:55:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 05:55:04,076 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:04,076 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 05:55:04,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 05:55:04,077 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 05:55:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:04,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1278260495, now seen corresponding path program 1 times [2020-12-22 05:55:04,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:04,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312377175] [2020-12-22 05:55:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:04,153 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 05:55:04,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312377175] [2020-12-22 05:55:04,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:04,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:04,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744800176] [2020-12-22 05:55:04,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:04,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:04,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:04,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:04,155 INFO L87 Difference]: Start difference. First operand 17673 states and 33237 transitions. Second operand 4 states. [2020-12-22 05:55:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:06,483 INFO L93 Difference]: Finished difference Result 70454 states and 132567 transitions. [2020-12-22 05:55:06,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:06,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-12-22 05:55:06,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:06,596 INFO L225 Difference]: With dead ends: 70454 [2020-12-22 05:55:06,596 INFO L226 Difference]: Without dead ends: 52806 [2020-12-22 05:55:06,636 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 05:55:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52806 states. [2020-12-22 05:55:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52806 to 17681. [2020-12-22 05:55:07,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17681 states. [2020-12-22 05:55:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17681 states to 17681 states and 33244 transitions. [2020-12-22 05:55:07,582 INFO L78 Accepts]: Start accepts. Automaton has 17681 states and 33244 transitions. Word has length 51 [2020-12-22 05:55:07,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:07,583 INFO L481 AbstractCegarLoop]: Abstraction has 17681 states and 33244 transitions. [2020-12-22 05:55:07,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 17681 states and 33244 transitions. [2020-12-22 05:55:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 05:55:07,589 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:07,589 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 05:55:07,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 05:55:07,590 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 05:55:07,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:07,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1028998937, now seen corresponding path program 1 times [2020-12-22 05:55:07,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:07,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240522066] [2020-12-22 05:55:07,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:07,652 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 05:55:07,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240522066] [2020-12-22 05:55:07,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:07,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:07,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918308090] [2020-12-22 05:55:07,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:07,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:07,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:07,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:07,654 INFO L87 Difference]: Start difference. First operand 17681 states and 33244 transitions. Second operand 5 states. [2020-12-22 05:55:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:09,668 INFO L93 Difference]: Finished difference Result 56533 states and 106336 transitions. [2020-12-22 05:55:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:55:09,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-12-22 05:55:09,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:09,724 INFO L225 Difference]: With dead ends: 56533 [2020-12-22 05:55:09,724 INFO L226 Difference]: Without dead ends: 38881 [2020-12-22 05:55:09,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:55:09,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38881 states. [2020-12-22 05:55:10,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38881 to 17667. [2020-12-22 05:55:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17667 states. [2020-12-22 05:55:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17667 states to 17667 states and 33218 transitions. [2020-12-22 05:55:10,574 INFO L78 Accepts]: Start accepts. Automaton has 17667 states and 33218 transitions. Word has length 52 [2020-12-22 05:55:10,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:10,575 INFO L481 AbstractCegarLoop]: Abstraction has 17667 states and 33218 transitions. [2020-12-22 05:55:10,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 17667 states and 33218 transitions. [2020-12-22 05:55:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 05:55:10,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:10,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:55:10,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 05:55:10,577 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 05:55:10,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:10,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1430723619, now seen corresponding path program 1 times [2020-12-22 05:55:10,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:10,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644196552] [2020-12-22 05:55:10,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:10,643 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 05:55:10,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644196552] [2020-12-22 05:55:10,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:10,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:10,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424377317] [2020-12-22 05:55:10,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:10,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:10,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:10,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:10,645 INFO L87 Difference]: Start difference. First operand 17667 states and 33218 transitions. Second operand 5 states. [2020-12-22 05:55:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:12,781 INFO L93 Difference]: Finished difference Result 56462 states and 106210 transitions. [2020-12-22 05:55:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:55:12,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-22 05:55:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:12,829 INFO L225 Difference]: With dead ends: 56462 [2020-12-22 05:55:12,829 INFO L226 Difference]: Without dead ends: 38855 [2020-12-22 05:55:12,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:55:12,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38855 states. [2020-12-22 05:55:13,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38855 to 17661. [2020-12-22 05:55:13,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17661 states. [2020-12-22 05:55:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17661 states to 17661 states and 33205 transitions. [2020-12-22 05:55:13,691 INFO L78 Accepts]: Start accepts. Automaton has 17661 states and 33205 transitions. Word has length 54 [2020-12-22 05:55:13,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:13,691 INFO L481 AbstractCegarLoop]: Abstraction has 17661 states and 33205 transitions. [2020-12-22 05:55:13,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 17661 states and 33205 transitions. [2020-12-22 05:55:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 05:55:13,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:13,693 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 05:55:13,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 05:55:13,693 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 05:55:13,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:13,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1628727614, now seen corresponding path program 1 times [2020-12-22 05:55:13,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:13,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399482033] [2020-12-22 05:55:13,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:13,748 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 05:55:13,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399482033] [2020-12-22 05:55:13,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:13,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:13,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725855132] [2020-12-22 05:55:13,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:13,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:13,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:13,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:13,750 INFO L87 Difference]: Start difference. First operand 17661 states and 33205 transitions. Second operand 4 states. [2020-12-22 05:55:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:15,080 INFO L93 Difference]: Finished difference Result 42356 states and 79654 transitions. [2020-12-22 05:55:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:15,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-12-22 05:55:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:15,113 INFO L225 Difference]: With dead ends: 42356 [2020-12-22 05:55:15,113 INFO L226 Difference]: Without dead ends: 24748 [2020-12-22 05:55:15,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24748 states. [2020-12-22 05:55:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24748 to 17661. [2020-12-22 05:55:16,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17661 states. [2020-12-22 05:55:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17661 states to 17661 states and 33197 transitions. [2020-12-22 05:55:16,184 INFO L78 Accepts]: Start accepts. Automaton has 17661 states and 33197 transitions. Word has length 56 [2020-12-22 05:55:16,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:16,185 INFO L481 AbstractCegarLoop]: Abstraction has 17661 states and 33197 transitions. [2020-12-22 05:55:16,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:16,185 INFO L276 IsEmpty]: Start isEmpty. Operand 17661 states and 33197 transitions. [2020-12-22 05:55:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 05:55:16,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:16,186 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] [2020-12-22 05:55:16,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 05:55:16,187 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 05:55:16,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:16,187 INFO L82 PathProgramCache]: Analyzing trace with hash 851090264, now seen corresponding path program 1 times [2020-12-22 05:55:16,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:16,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300781377] [2020-12-22 05:55:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:16,336 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 05:55:16,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300781377] [2020-12-22 05:55:16,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:16,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:55:16,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169405223] [2020-12-22 05:55:16,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:16,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:16,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:16,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:16,340 INFO L87 Difference]: Start difference. First operand 17661 states and 33197 transitions. Second operand 3 states. [2020-12-22 05:55:18,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:18,590 INFO L93 Difference]: Finished difference Result 47719 states and 89725 transitions. [2020-12-22 05:55:18,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:18,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-12-22 05:55:18,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:18,632 INFO L225 Difference]: With dead ends: 47719 [2020-12-22 05:55:18,632 INFO L226 Difference]: Without dead ends: 33465 [2020-12-22 05:55:18,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 05:55:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33465 states. [2020-12-22 05:55:19,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33465 to 28493. [2020-12-22 05:55:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28493 states. [2020-12-22 05:55:19,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28493 states to 28493 states and 53497 transitions. [2020-12-22 05:55:19,944 INFO L78 Accepts]: Start accepts. Automaton has 28493 states and 53497 transitions. Word has length 57 [2020-12-22 05:55:19,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:19,944 INFO L481 AbstractCegarLoop]: Abstraction has 28493 states and 53497 transitions. [2020-12-22 05:55:19,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:55:19,944 INFO L276 IsEmpty]: Start isEmpty. Operand 28493 states and 53497 transitions. [2020-12-22 05:55:19,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 05:55:19,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:19,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:19,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 05:55:19,952 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 05:55:19,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:19,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1579006696, now seen corresponding path program 1 times [2020-12-22 05:55:19,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:19,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607943935] [2020-12-22 05:55:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:20,073 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 05:55:20,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607943935] [2020-12-22 05:55:20,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:20,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 05:55:20,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815856529] [2020-12-22 05:55:20,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:55:20,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:20,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:55:20,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:55:20,075 INFO L87 Difference]: Start difference. First operand 28493 states and 53497 transitions. Second operand 8 states. [2020-12-22 05:55:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:23,507 INFO L93 Difference]: Finished difference Result 75355 states and 140165 transitions. [2020-12-22 05:55:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:55:23,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2020-12-22 05:55:23,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:23,571 INFO L225 Difference]: With dead ends: 75355 [2020-12-22 05:55:23,571 INFO L226 Difference]: Without dead ends: 48081 [2020-12-22 05:55:23,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:55:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48081 states. [2020-12-22 05:55:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48081 to 27690. [2020-12-22 05:55:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27690 states. [2020-12-22 05:55:25,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27690 states to 27690 states and 51606 transitions. [2020-12-22 05:55:25,230 INFO L78 Accepts]: Start accepts. Automaton has 27690 states and 51606 transitions. Word has length 76 [2020-12-22 05:55:25,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:25,230 INFO L481 AbstractCegarLoop]: Abstraction has 27690 states and 51606 transitions. [2020-12-22 05:55:25,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:55:25,231 INFO L276 IsEmpty]: Start isEmpty. Operand 27690 states and 51606 transitions. [2020-12-22 05:55:25,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 05:55:25,235 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:25,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:25,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 05:55:25,235 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 05:55:25,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:25,236 INFO L82 PathProgramCache]: Analyzing trace with hash -376587954, now seen corresponding path program 1 times [2020-12-22 05:55:25,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:25,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219621984] [2020-12-22 05:55:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:25,340 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 05:55:25,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219621984] [2020-12-22 05:55:25,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:25,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:25,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019624451] [2020-12-22 05:55:25,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:55:25,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:25,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:55:25,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:55:25,343 INFO L87 Difference]: Start difference. First operand 27690 states and 51606 transitions. Second operand 6 states. [2020-12-22 05:56:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:09,556 INFO L93 Difference]: Finished difference Result 269286 states and 499557 transitions. [2020-12-22 05:56:09,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 05:56:09,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-12-22 05:56:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:10,308 INFO L225 Difference]: With dead ends: 269286 [2020-12-22 05:56:10,308 INFO L226 Difference]: Without dead ends: 241697 [2020-12-22 05:56:10,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-12-22 05:56:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241697 states. [2020-12-22 05:56:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241697 to 40831. [2020-12-22 05:56:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40831 states. [2020-12-22 05:56:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40831 states to 40831 states and 76055 transitions. [2020-12-22 05:56:14,688 INFO L78 Accepts]: Start accepts. Automaton has 40831 states and 76055 transitions. Word has length 77 [2020-12-22 05:56:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:14,688 INFO L481 AbstractCegarLoop]: Abstraction has 40831 states and 76055 transitions. [2020-12-22 05:56:14,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:56:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 40831 states and 76055 transitions. [2020-12-22 05:56:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 05:56:14,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:14,693 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, 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 05:56:14,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 05:56:14,693 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 05:56:14,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:14,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1683337118, now seen corresponding path program 1 times [2020-12-22 05:56:14,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:14,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18337871] [2020-12-22 05:56:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:14,785 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 05:56:14,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18337871] [2020-12-22 05:56:14,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:14,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:56:14,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607077575] [2020-12-22 05:56:14,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 05:56:14,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:14,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 05:56:14,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 05:56:14,787 INFO L87 Difference]: Start difference. First operand 40831 states and 76055 transitions. Second operand 6 states. [2020-12-22 05:57:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:57:15,941 INFO L93 Difference]: Finished difference Result 359732 states and 667305 transitions. [2020-12-22 05:57:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 05:57:15,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-12-22 05:57:15,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:57:16,906 INFO L225 Difference]: With dead ends: 359732 [2020-12-22 05:57:16,906 INFO L226 Difference]: Without dead ends: 319005 [2020-12-22 05:57:17,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-12-22 05:57:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319005 states. [2020-12-22 05:57:22,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319005 to 53903. [2020-12-22 05:57:22,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53903 states. [2020-12-22 05:57:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53903 states to 53903 states and 100435 transitions. [2020-12-22 05:57:22,674 INFO L78 Accepts]: Start accepts. Automaton has 53903 states and 100435 transitions. Word has length 78 [2020-12-22 05:57:22,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:57:22,674 INFO L481 AbstractCegarLoop]: Abstraction has 53903 states and 100435 transitions. [2020-12-22 05:57:22,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 05:57:22,674 INFO L276 IsEmpty]: Start isEmpty. Operand 53903 states and 100435 transitions. [2020-12-22 05:57:22,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 05:57:22,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:57:22,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:57:22,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 05:57:22,683 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 05:57:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:57:22,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1918678441, now seen corresponding path program 1 times [2020-12-22 05:57:22,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:57:22,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42000303] [2020-12-22 05:57:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:57:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:57:22,775 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 05:57:22,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42000303] [2020-12-22 05:57:22,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:57:22,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:57:22,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020481514] [2020-12-22 05:57:22,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:57:22,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:57:22,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:57:22,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:57:22,778 INFO L87 Difference]: Start difference. First operand 53903 states and 100435 transitions. Second operand 3 states. [2020-12-22 05:57:30,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:57:30,358 INFO L93 Difference]: Finished difference Result 154845 states and 288613 transitions. [2020-12-22 05:57:30,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:57:30,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 05:57:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:57:30,704 INFO L225 Difference]: With dead ends: 154845 [2020-12-22 05:57:30,705 INFO L226 Difference]: Without dead ends: 104221 [2020-12-22 05:57:30,756 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 05:57:30,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104221 states. [2020-12-22 05:57:39,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104221 to 104141. [2020-12-22 05:57:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104141 states. [2020-12-22 05:57:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104141 states to 104141 states and 194003 transitions. [2020-12-22 05:57:39,480 INFO L78 Accepts]: Start accepts. Automaton has 104141 states and 194003 transitions. Word has length 79 [2020-12-22 05:57:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:57:39,481 INFO L481 AbstractCegarLoop]: Abstraction has 104141 states and 194003 transitions. [2020-12-22 05:57:39,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:57:39,481 INFO L276 IsEmpty]: Start isEmpty. Operand 104141 states and 194003 transitions. [2020-12-22 05:57:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 05:57:39,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:57:39,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:57:39,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 05:57:39,486 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 05:57:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:57:39,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1472880001, now seen corresponding path program 1 times [2020-12-22 05:57:39,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:57:39,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042526290] [2020-12-22 05:57:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:57:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:57:39,564 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 05:57:39,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042526290] [2020-12-22 05:57:39,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:57:39,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:57:39,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496043698] [2020-12-22 05:57:39,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:57:39,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:57:39,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:57:39,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:57:39,566 INFO L87 Difference]: Start difference. First operand 104141 states and 194003 transitions. Second operand 5 states. [2020-12-22 05:57:48,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:57:48,089 INFO L93 Difference]: Finished difference Result 198689 states and 370079 transitions. [2020-12-22 05:57:48,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:57:48,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-12-22 05:57:48,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:57:48,293 INFO L225 Difference]: With dead ends: 198689 [2020-12-22 05:57:48,293 INFO L226 Difference]: Without dead ends: 104221 [2020-12-22 05:57:48,376 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 05:57:48,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104221 states.