/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:41:22,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:41:22,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:41:22,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:41:22,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:41:22,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:41:22,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:41:22,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:41:22,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:41:22,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:41:22,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:41:22,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:41:22,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:41:22,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:41:22,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:41:22,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:41:22,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:41:22,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:41:22,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:41:22,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:41:22,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:41:22,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:41:22,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:41:22,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:41:22,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:41:22,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:41:22,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:41:22,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:41:22,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:41:22,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:41:22,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:41:22,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:41:22,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:41:22,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:41:22,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:41:22,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:41:22,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:41:22,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:41:22,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:41:22,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:41:22,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:41:22,808 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:41:22,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:41:22,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:41:22,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:41:22,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:41:22,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:41:22,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:41:22,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:41:22,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:41:22,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:41:22,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:41:22,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:41:22,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:41:22,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:41:22,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:41:22,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:41:22,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:41:22,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:41:22,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:41:22,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:41:22,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:41:22,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:41:23,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:41:23,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:41:23,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:41:23,254 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:41:23,255 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:41:23,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2020-12-22 06:41:23,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916f3686b/aec65bb2c94349eb8fea1d7d0fba0680/FLAG5390ac2d9 [2020-12-22 06:41:24,233 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:41:24,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c [2020-12-22 06:41:24,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916f3686b/aec65bb2c94349eb8fea1d7d0fba0680/FLAG5390ac2d9 [2020-12-22 06:41:24,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916f3686b/aec65bb2c94349eb8fea1d7d0fba0680 [2020-12-22 06:41:24,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:41:24,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:41:24,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:41:24,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:41:24,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:41:24,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:41:24" (1/1) ... [2020-12-22 06:41:24,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd864cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:24, skipping insertion in model container [2020-12-22 06:41:24,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:41:24" (1/1) ... [2020-12-22 06:41:24,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:41:24,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:41:24,914 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[16677,16690] [2020-12-22 06:41:25,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:41:25,248 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:41:25,288 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_productSimulator.cil.c[16677,16690] [2020-12-22 06:41:25,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:41:25,611 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:41:25,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25 WrapperNode [2020-12-22 06:41:25,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:41:25,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:41:25,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:41:25,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:41:25,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:25,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:32,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:41:32,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:41:32,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:41:32,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:41:32,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:32,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:34,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:34,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:36,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:37,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:38,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... [2020-12-22 06:41:39,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:41:39,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:41:39,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:41:39,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:41:39,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:41:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-12-22 06:41:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:41:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:41:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:41:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:42:55,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:42:55,932 INFO L299 CfgBuilder]: Removed 36059 assume(true) statements. [2020-12-22 06:42:55,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:42:55 BoogieIcfgContainer [2020-12-22 06:42:55,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:42:55,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:42:55,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:42:55,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:42:55,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:41:24" (1/3) ... [2020-12-22 06:42:55,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bad43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:42:55, skipping insertion in model container [2020-12-22 06:42:55,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:41:25" (2/3) ... [2020-12-22 06:42:55,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bad43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:42:55, skipping insertion in model container [2020-12-22 06:42:55,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:42:55" (3/3) ... [2020-12-22 06:42:55,982 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_productSimulator.cil.c [2020-12-22 06:42:55,989 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:42:56,004 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-12-22 06:42:56,025 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-12-22 06:42:56,184 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:42:56,184 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:42:56,185 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:42:56,185 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:42:56,185 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:42:56,185 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:42:56,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:42:56,185 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:42:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 35028 states. [2020-12-22 06:42:56,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 06:42:56,875 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:42:56,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:42:56,878 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:42:56,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:42:56,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1565017782, now seen corresponding path program 1 times [2020-12-22 06:42:56,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:42:56,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215891751] [2020-12-22 06:42:56,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:42:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:42:57,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:42:57,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215891751] [2020-12-22 06:42:57,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:42:57,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:42:57,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304451748] [2020-12-22 06:42:57,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:42:57,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:42:57,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:42:57,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:42:57,474 INFO L87 Difference]: Start difference. First operand 35028 states. Second operand 2 states. [2020-12-22 06:42:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:42:58,541 INFO L93 Difference]: Finished difference Result 69721 states and 112018 transitions. [2020-12-22 06:42:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:42:58,543 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 55 [2020-12-22 06:42:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:42:58,734 INFO L225 Difference]: With dead ends: 69721 [2020-12-22 06:42:58,735 INFO L226 Difference]: Without dead ends: 22556 [2020-12-22 06:42:58,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:42:58,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22556 states. [2020-12-22 06:43:00,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22556 to 22556. [2020-12-22 06:43:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22556 states. [2020-12-22 06:43:00,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22556 states to 22556 states and 36284 transitions. [2020-12-22 06:43:00,293 INFO L78 Accepts]: Start accepts. Automaton has 22556 states and 36284 transitions. Word has length 55 [2020-12-22 06:43:00,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:00,294 INFO L481 AbstractCegarLoop]: Abstraction has 22556 states and 36284 transitions. [2020-12-22 06:43:00,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:43:00,295 INFO L276 IsEmpty]: Start isEmpty. Operand 22556 states and 36284 transitions. [2020-12-22 06:43:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 06:43:00,302 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:00,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:00,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:43:00,304 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:00,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:00,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2068624305, now seen corresponding path program 1 times [2020-12-22 06:43:00,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:00,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974564907] [2020-12-22 06:43:00,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:00,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:00,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974564907] [2020-12-22 06:43:00,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:00,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:43:00,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044196224] [2020-12-22 06:43:00,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:43:00,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:00,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:43:00,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:00,591 INFO L87 Difference]: Start difference. First operand 22556 states and 36284 transitions. Second operand 5 states. [2020-12-22 06:43:01,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:01,948 INFO L93 Difference]: Finished difference Result 45087 states and 72530 transitions. [2020-12-22 06:43:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:43:01,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-12-22 06:43:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:02,046 INFO L225 Difference]: With dead ends: 45087 [2020-12-22 06:43:02,046 INFO L226 Difference]: Without dead ends: 22556 [2020-12-22 06:43:02,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:43:02,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22556 states. [2020-12-22 06:43:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22556 to 22556. [2020-12-22 06:43:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22556 states. [2020-12-22 06:43:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22556 states to 22556 states and 36277 transitions. [2020-12-22 06:43:02,891 INFO L78 Accepts]: Start accepts. Automaton has 22556 states and 36277 transitions. Word has length 56 [2020-12-22 06:43:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:02,891 INFO L481 AbstractCegarLoop]: Abstraction has 22556 states and 36277 transitions. [2020-12-22 06:43:02,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:43:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 22556 states and 36277 transitions. [2020-12-22 06:43:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 06:43:02,897 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:02,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:02,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:43:02,898 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:02,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:02,900 INFO L82 PathProgramCache]: Analyzing trace with hash -630065853, now seen corresponding path program 1 times [2020-12-22 06:43:02,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:02,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446263219] [2020-12-22 06:43:02,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:03,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446263219] [2020-12-22 06:43:03,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:03,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:03,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901924721] [2020-12-22 06:43:03,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:03,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:03,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:03,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:03,050 INFO L87 Difference]: Start difference. First operand 22556 states and 36277 transitions. Second operand 3 states. [2020-12-22 06:43:04,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:04,614 INFO L93 Difference]: Finished difference Result 31200 states and 50531 transitions. [2020-12-22 06:43:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:04,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 06:43:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:04,640 INFO L225 Difference]: With dead ends: 31200 [2020-12-22 06:43:04,640 INFO L226 Difference]: Without dead ends: 8658 [2020-12-22 06:43:04,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:04,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2020-12-22 06:43:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 8658. [2020-12-22 06:43:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8658 states. [2020-12-22 06:43:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8658 states to 8658 states and 13911 transitions. [2020-12-22 06:43:04,896 INFO L78 Accepts]: Start accepts. Automaton has 8658 states and 13911 transitions. Word has length 61 [2020-12-22 06:43:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:04,903 INFO L481 AbstractCegarLoop]: Abstraction has 8658 states and 13911 transitions. [2020-12-22 06:43:04,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:04,904 INFO L276 IsEmpty]: Start isEmpty. Operand 8658 states and 13911 transitions. [2020-12-22 06:43:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 06:43:04,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:04,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:04,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:43:04,907 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:04,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:04,908 INFO L82 PathProgramCache]: Analyzing trace with hash -760205944, now seen corresponding path program 1 times [2020-12-22 06:43:04,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:04,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948989172] [2020-12-22 06:43:04,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:05,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:05,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948989172] [2020-12-22 06:43:05,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:05,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:05,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403325755] [2020-12-22 06:43:05,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:05,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:05,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:05,013 INFO L87 Difference]: Start difference. First operand 8658 states and 13911 transitions. Second operand 3 states. [2020-12-22 06:43:05,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:05,321 INFO L93 Difference]: Finished difference Result 13750 states and 22185 transitions. [2020-12-22 06:43:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:05,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 06:43:05,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:05,334 INFO L225 Difference]: With dead ends: 13750 [2020-12-22 06:43:05,334 INFO L226 Difference]: Without dead ends: 5108 [2020-12-22 06:43:05,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:05,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5108 states. [2020-12-22 06:43:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5108 to 5108. [2020-12-22 06:43:05,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5108 states. [2020-12-22 06:43:05,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 8280 transitions. [2020-12-22 06:43:05,651 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 8280 transitions. Word has length 70 [2020-12-22 06:43:05,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:05,653 INFO L481 AbstractCegarLoop]: Abstraction has 5108 states and 8280 transitions. [2020-12-22 06:43:05,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 8280 transitions. [2020-12-22 06:43:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 06:43:05,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:05,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:05,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:43:05,658 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:05,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:05,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1784880985, now seen corresponding path program 1 times [2020-12-22 06:43:05,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:05,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488966924] [2020-12-22 06:43:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:05,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:05,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488966924] [2020-12-22 06:43:05,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:05,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:05,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617833699] [2020-12-22 06:43:05,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:05,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:05,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:05,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:05,793 INFO L87 Difference]: Start difference. First operand 5108 states and 8280 transitions. Second operand 3 states. [2020-12-22 06:43:06,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:06,084 INFO L93 Difference]: Finished difference Result 10171 states and 16496 transitions. [2020-12-22 06:43:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:06,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 06:43:06,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:06,097 INFO L225 Difference]: With dead ends: 10171 [2020-12-22 06:43:06,097 INFO L226 Difference]: Without dead ends: 5099 [2020-12-22 06:43:06,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5099 states. [2020-12-22 06:43:06,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5099 to 5099. [2020-12-22 06:43:06,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5099 states. [2020-12-22 06:43:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 8251 transitions. [2020-12-22 06:43:06,274 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 8251 transitions. Word has length 71 [2020-12-22 06:43:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:06,274 INFO L481 AbstractCegarLoop]: Abstraction has 5099 states and 8251 transitions. [2020-12-22 06:43:06,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 8251 transitions. [2020-12-22 06:43:06,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 06:43:06,277 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:06,278 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 06:43:06,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:43:06,278 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:06,279 INFO L82 PathProgramCache]: Analyzing trace with hash -2022958998, now seen corresponding path program 1 times [2020-12-22 06:43:06,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:06,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727318639] [2020-12-22 06:43:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:06,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727318639] [2020-12-22 06:43:06,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:06,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:43:06,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032710653] [2020-12-22 06:43:06,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:43:06,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:06,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:43:06,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:43:06,401 INFO L87 Difference]: Start difference. First operand 5099 states and 8251 transitions. Second operand 4 states. [2020-12-22 06:43:06,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:06,994 INFO L93 Difference]: Finished difference Result 15212 states and 24641 transitions. [2020-12-22 06:43:06,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:43:06,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2020-12-22 06:43:06,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:07,018 INFO L225 Difference]: With dead ends: 15212 [2020-12-22 06:43:07,018 INFO L226 Difference]: Without dead ends: 10153 [2020-12-22 06:43:07,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10153 states. [2020-12-22 06:43:07,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10153 to 5098. [2020-12-22 06:43:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5098 states. [2020-12-22 06:43:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5098 states to 5098 states and 8247 transitions. [2020-12-22 06:43:07,244 INFO L78 Accepts]: Start accepts. Automaton has 5098 states and 8247 transitions. Word has length 77 [2020-12-22 06:43:07,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:07,244 INFO L481 AbstractCegarLoop]: Abstraction has 5098 states and 8247 transitions. [2020-12-22 06:43:07,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:43:07,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5098 states and 8247 transitions. [2020-12-22 06:43:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 06:43:07,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:07,247 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 06:43:07,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:43:07,247 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:07,248 INFO L82 PathProgramCache]: Analyzing trace with hash 568659779, now seen corresponding path program 1 times [2020-12-22 06:43:07,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:07,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894961630] [2020-12-22 06:43:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:07,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894961630] [2020-12-22 06:43:07,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:07,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:43:07,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562295997] [2020-12-22 06:43:07,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:43:07,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:07,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:43:07,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:07,341 INFO L87 Difference]: Start difference. First operand 5098 states and 8247 transitions. Second operand 5 states. [2020-12-22 06:43:08,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:08,058 INFO L93 Difference]: Finished difference Result 15193 states and 24601 transitions. [2020-12-22 06:43:08,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:43:08,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-12-22 06:43:08,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:08,087 INFO L225 Difference]: With dead ends: 15193 [2020-12-22 06:43:08,087 INFO L226 Difference]: Without dead ends: 10139 [2020-12-22 06:43:08,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:43:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10139 states. [2020-12-22 06:43:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10139 to 5098. [2020-12-22 06:43:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5098 states. [2020-12-22 06:43:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5098 states to 5098 states and 8246 transitions. [2020-12-22 06:43:08,353 INFO L78 Accepts]: Start accepts. Automaton has 5098 states and 8246 transitions. Word has length 78 [2020-12-22 06:43:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:08,354 INFO L481 AbstractCegarLoop]: Abstraction has 5098 states and 8246 transitions. [2020-12-22 06:43:08,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:43:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5098 states and 8246 transitions. [2020-12-22 06:43:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 06:43:08,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:08,364 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 06:43:08,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:43:08,366 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:08,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:08,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1216636867, now seen corresponding path program 1 times [2020-12-22 06:43:08,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:08,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248685068] [2020-12-22 06:43:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:08,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:08,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248685068] [2020-12-22 06:43:08,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:08,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:08,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87513198] [2020-12-22 06:43:08,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:08,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:08,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:08,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:08,460 INFO L87 Difference]: Start difference. First operand 5098 states and 8246 transitions. Second operand 3 states. [2020-12-22 06:43:08,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:08,742 INFO L93 Difference]: Finished difference Result 9874 states and 15931 transitions. [2020-12-22 06:43:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:08,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 06:43:08,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:08,756 INFO L225 Difference]: With dead ends: 9874 [2020-12-22 06:43:08,757 INFO L226 Difference]: Without dead ends: 5101 [2020-12-22 06:43:08,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:08,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2020-12-22 06:43:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 5100. [2020-12-22 06:43:08,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5100 states. [2020-12-22 06:43:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5100 states to 5100 states and 8248 transitions. [2020-12-22 06:43:08,990 INFO L78 Accepts]: Start accepts. Automaton has 5100 states and 8248 transitions. Word has length 79 [2020-12-22 06:43:08,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:08,991 INFO L481 AbstractCegarLoop]: Abstraction has 5100 states and 8248 transitions. [2020-12-22 06:43:08,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:08,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5100 states and 8248 transitions. [2020-12-22 06:43:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 06:43:08,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:08,994 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:08,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:43:08,994 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:08,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:08,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1274738169, now seen corresponding path program 1 times [2020-12-22 06:43:08,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:08,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560550138] [2020-12-22 06:43:08,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:09,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:09,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560550138] [2020-12-22 06:43:09,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:09,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:09,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281098814] [2020-12-22 06:43:09,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:09,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:09,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:09,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:09,100 INFO L87 Difference]: Start difference. First operand 5100 states and 8248 transitions. Second operand 3 states. [2020-12-22 06:43:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:09,596 INFO L93 Difference]: Finished difference Result 15133 states and 24499 transitions. [2020-12-22 06:43:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:09,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-12-22 06:43:09,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:09,621 INFO L225 Difference]: With dead ends: 15133 [2020-12-22 06:43:09,621 INFO L226 Difference]: Without dead ends: 10090 [2020-12-22 06:43:09,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:09,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2020-12-22 06:43:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 5317. [2020-12-22 06:43:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5317 states. [2020-12-22 06:43:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 8643 transitions. [2020-12-22 06:43:09,910 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 8643 transitions. Word has length 87 [2020-12-22 06:43:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:09,910 INFO L481 AbstractCegarLoop]: Abstraction has 5317 states and 8643 transitions. [2020-12-22 06:43:09,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:09,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 8643 transitions. [2020-12-22 06:43:09,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 06:43:09,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:09,914 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:09,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:43:09,914 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:09,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:09,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1870244990, now seen corresponding path program 1 times [2020-12-22 06:43:09,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:09,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209482065] [2020-12-22 06:43:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:10,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209482065] [2020-12-22 06:43:10,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054388955] [2020-12-22 06:43:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:43:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:10,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 06:43:10,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:43:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 06:43:10,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:43:10,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-12-22 06:43:10,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038393996] [2020-12-22 06:43:10,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:43:10,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:10,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:43:10,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:43:10,982 INFO L87 Difference]: Start difference. First operand 5317 states and 8643 transitions. Second operand 4 states. [2020-12-22 06:43:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:11,404 INFO L93 Difference]: Finished difference Result 10591 states and 17232 transitions. [2020-12-22 06:43:11,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:43:11,405 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 06:43:11,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:11,419 INFO L225 Difference]: With dead ends: 10591 [2020-12-22 06:43:11,419 INFO L226 Difference]: Without dead ends: 5323 [2020-12-22 06:43:11,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:43:11,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5323 states. [2020-12-22 06:43:11,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5323 to 5317. [2020-12-22 06:43:11,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5317 states. [2020-12-22 06:43:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 8641 transitions. [2020-12-22 06:43:11,848 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 8641 transitions. Word has length 88 [2020-12-22 06:43:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:11,849 INFO L481 AbstractCegarLoop]: Abstraction has 5317 states and 8641 transitions. [2020-12-22 06:43:11,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:43:11,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 8641 transitions. [2020-12-22 06:43:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 06:43:11,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:11,853 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:12,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 06:43:12,067 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:12,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:12,069 INFO L82 PathProgramCache]: Analyzing trace with hash 172467769, now seen corresponding path program 1 times [2020-12-22 06:43:12,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:12,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859655921] [2020-12-22 06:43:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 06:43:12,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859655921] [2020-12-22 06:43:12,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:12,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:43:12,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57169923] [2020-12-22 06:43:12,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:43:12,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:12,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:43:12,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:12,184 INFO L87 Difference]: Start difference. First operand 5317 states and 8641 transitions. Second operand 5 states. [2020-12-22 06:43:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:13,092 INFO L93 Difference]: Finished difference Result 15828 states and 25752 transitions. [2020-12-22 06:43:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:43:13,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-12-22 06:43:13,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:13,119 INFO L225 Difference]: With dead ends: 15828 [2020-12-22 06:43:13,119 INFO L226 Difference]: Without dead ends: 10564 [2020-12-22 06:43:13,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:43:13,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10564 states. [2020-12-22 06:43:13,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10564 to 5317. [2020-12-22 06:43:13,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5317 states. [2020-12-22 06:43:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 8640 transitions. [2020-12-22 06:43:13,496 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 8640 transitions. Word has length 90 [2020-12-22 06:43:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:13,496 INFO L481 AbstractCegarLoop]: Abstraction has 5317 states and 8640 transitions. [2020-12-22 06:43:13,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:43:13,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 8640 transitions. [2020-12-22 06:43:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 06:43:13,499 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:13,499 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:13,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:43:13,500 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:13,501 INFO L82 PathProgramCache]: Analyzing trace with hash 660073263, now seen corresponding path program 1 times [2020-12-22 06:43:13,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:13,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746026842] [2020-12-22 06:43:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:13,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 06:43:13,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746026842] [2020-12-22 06:43:13,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:13,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:43:13,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608076899] [2020-12-22 06:43:13,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:43:13,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:13,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:43:13,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:13,597 INFO L87 Difference]: Start difference. First operand 5317 states and 8640 transitions. Second operand 5 states. [2020-12-22 06:43:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:14,271 INFO L93 Difference]: Finished difference Result 15834 states and 25758 transitions. [2020-12-22 06:43:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:43:14,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-12-22 06:43:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:14,298 INFO L225 Difference]: With dead ends: 15834 [2020-12-22 06:43:14,298 INFO L226 Difference]: Without dead ends: 10570 [2020-12-22 06:43:14,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:43:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10570 states. [2020-12-22 06:43:14,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10570 to 5317. [2020-12-22 06:43:14,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5317 states. [2020-12-22 06:43:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 8639 transitions. [2020-12-22 06:43:14,763 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 8639 transitions. Word has length 91 [2020-12-22 06:43:14,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:14,764 INFO L481 AbstractCegarLoop]: Abstraction has 5317 states and 8639 transitions. [2020-12-22 06:43:14,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:43:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 8639 transitions. [2020-12-22 06:43:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 06:43:14,770 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:14,770 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:14,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:43:14,770 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:14,771 INFO L82 PathProgramCache]: Analyzing trace with hash -851087788, now seen corresponding path program 1 times [2020-12-22 06:43:14,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:14,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996729896] [2020-12-22 06:43:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:14,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996729896] [2020-12-22 06:43:14,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616197922] [2020-12-22 06:43:14,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:43:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:15,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:43:15,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:43:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:15,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 06:43:15,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 06:43:15,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91065334] [2020-12-22 06:43:15,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:43:15,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:15,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:43:15,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:15,589 INFO L87 Difference]: Start difference. First operand 5317 states and 8639 transitions. Second operand 5 states. [2020-12-22 06:43:16,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:16,509 INFO L93 Difference]: Finished difference Result 15137 states and 24498 transitions. [2020-12-22 06:43:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:43:16,510 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-12-22 06:43:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:16,530 INFO L225 Difference]: With dead ends: 15137 [2020-12-22 06:43:16,530 INFO L226 Difference]: Without dead ends: 10364 [2020-12-22 06:43:16,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2020-12-22 06:43:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 5589. [2020-12-22 06:43:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5589 states. [2020-12-22 06:43:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5589 states to 5589 states and 9132 transitions. [2020-12-22 06:43:16,909 INFO L78 Accepts]: Start accepts. Automaton has 5589 states and 9132 transitions. Word has length 92 [2020-12-22 06:43:16,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:16,910 INFO L481 AbstractCegarLoop]: Abstraction has 5589 states and 9132 transitions. [2020-12-22 06:43:16,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:43:16,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5589 states and 9132 transitions. [2020-12-22 06:43:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 06:43:16,914 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:16,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:17,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 06:43:17,129 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:17,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:17,129 INFO L82 PathProgramCache]: Analyzing trace with hash 38075933, now seen corresponding path program 1 times [2020-12-22 06:43:17,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:17,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858015592] [2020-12-22 06:43:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:17,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858015592] [2020-12-22 06:43:17,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:17,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:17,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685322099] [2020-12-22 06:43:17,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:17,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:17,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:17,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:17,205 INFO L87 Difference]: Start difference. First operand 5589 states and 9132 transitions. Second operand 3 states. [2020-12-22 06:43:17,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:17,970 INFO L93 Difference]: Finished difference Result 16307 states and 26629 transitions. [2020-12-22 06:43:17,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:17,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-22 06:43:17,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:17,991 INFO L225 Difference]: With dead ends: 16307 [2020-12-22 06:43:17,991 INFO L226 Difference]: Without dead ends: 10839 [2020-12-22 06:43:18,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2020-12-22 06:43:18,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 6066. [2020-12-22 06:43:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6066 states. [2020-12-22 06:43:18,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6066 states to 6066 states and 9997 transitions. [2020-12-22 06:43:18,611 INFO L78 Accepts]: Start accepts. Automaton has 6066 states and 9997 transitions. Word has length 96 [2020-12-22 06:43:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:18,611 INFO L481 AbstractCegarLoop]: Abstraction has 6066 states and 9997 transitions. [2020-12-22 06:43:18,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:18,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6066 states and 9997 transitions. [2020-12-22 06:43:18,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 06:43:18,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:18,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:18,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:43:18,617 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:18,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:18,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1552157626, now seen corresponding path program 1 times [2020-12-22 06:43:18,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:18,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598584139] [2020-12-22 06:43:18,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:18,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598584139] [2020-12-22 06:43:18,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:18,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:18,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170025768] [2020-12-22 06:43:18,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:18,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:18,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:18,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:18,710 INFO L87 Difference]: Start difference. First operand 6066 states and 9997 transitions. Second operand 3 states. [2020-12-22 06:43:19,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:19,262 INFO L93 Difference]: Finished difference Result 17715 states and 29192 transitions. [2020-12-22 06:43:19,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:19,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-22 06:43:19,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:19,287 INFO L225 Difference]: With dead ends: 17715 [2020-12-22 06:43:19,288 INFO L226 Difference]: Without dead ends: 11779 [2020-12-22 06:43:19,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:19,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11779 states. [2020-12-22 06:43:19,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11779 to 7006. [2020-12-22 06:43:19,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7006 states. [2020-12-22 06:43:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 11706 transitions. [2020-12-22 06:43:19,982 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 11706 transitions. Word has length 97 [2020-12-22 06:43:19,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:19,982 INFO L481 AbstractCegarLoop]: Abstraction has 7006 states and 11706 transitions. [2020-12-22 06:43:19,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 11706 transitions. [2020-12-22 06:43:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 06:43:19,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:19,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:19,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 06:43:19,990 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:19,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:19,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1131451596, now seen corresponding path program 1 times [2020-12-22 06:43:19,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:19,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181094341] [2020-12-22 06:43:19,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:20,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181094341] [2020-12-22 06:43:20,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:20,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:20,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44807434] [2020-12-22 06:43:20,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:20,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:20,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:20,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:20,070 INFO L87 Difference]: Start difference. First operand 7006 states and 11706 transitions. Second operand 3 states. [2020-12-22 06:43:20,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:20,815 INFO L93 Difference]: Finished difference Result 20266 states and 33833 transitions. [2020-12-22 06:43:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:20,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-12-22 06:43:20,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:20,832 INFO L225 Difference]: With dead ends: 20266 [2020-12-22 06:43:20,832 INFO L226 Difference]: Without dead ends: 13425 [2020-12-22 06:43:20,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:20,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13425 states. [2020-12-22 06:43:21,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13425 to 8652. [2020-12-22 06:43:21,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2020-12-22 06:43:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 14695 transitions. [2020-12-22 06:43:21,440 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 14695 transitions. Word has length 98 [2020-12-22 06:43:21,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:21,440 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 14695 transitions. [2020-12-22 06:43:21,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 14695 transitions. [2020-12-22 06:43:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 06:43:21,448 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:21,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:21,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 06:43:21,449 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:21,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:21,449 INFO L82 PathProgramCache]: Analyzing trace with hash 352243503, now seen corresponding path program 1 times [2020-12-22 06:43:21,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:21,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813242099] [2020-12-22 06:43:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:21,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:21,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813242099] [2020-12-22 06:43:21,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:21,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:21,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427862210] [2020-12-22 06:43:21,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:21,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:21,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:21,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:21,527 INFO L87 Difference]: Start difference. First operand 8652 states and 14695 transitions. Second operand 3 states. [2020-12-22 06:43:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:22,322 INFO L93 Difference]: Finished difference Result 24911 states and 42274 transitions. [2020-12-22 06:43:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:22,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-12-22 06:43:22,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:22,346 INFO L225 Difference]: With dead ends: 24911 [2020-12-22 06:43:22,346 INFO L226 Difference]: Without dead ends: 16459 [2020-12-22 06:43:22,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16459 states. [2020-12-22 06:43:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16459 to 11686. [2020-12-22 06:43:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11686 states. [2020-12-22 06:43:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11686 states to 11686 states and 20200 transitions. [2020-12-22 06:43:22,979 INFO L78 Accepts]: Start accepts. Automaton has 11686 states and 20200 transitions. Word has length 99 [2020-12-22 06:43:22,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:22,979 INFO L481 AbstractCegarLoop]: Abstraction has 11686 states and 20200 transitions. [2020-12-22 06:43:22,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 11686 states and 20200 transitions. [2020-12-22 06:43:22,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-22 06:43:22,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:22,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:22,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 06:43:22,990 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:22,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:22,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1140611255, now seen corresponding path program 1 times [2020-12-22 06:43:22,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:22,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017097996] [2020-12-22 06:43:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:23,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017097996] [2020-12-22 06:43:23,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:23,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:23,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448402701] [2020-12-22 06:43:23,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:23,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:23,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:23,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:23,081 INFO L87 Difference]: Start difference. First operand 11686 states and 20200 transitions. Second operand 3 states. [2020-12-22 06:43:24,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:24,089 INFO L93 Difference]: Finished difference Result 34322 states and 59350 transitions. [2020-12-22 06:43:24,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:24,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-12-22 06:43:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:24,123 INFO L225 Difference]: With dead ends: 34322 [2020-12-22 06:43:24,123 INFO L226 Difference]: Without dead ends: 22845 [2020-12-22 06:43:24,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:24,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22845 states. [2020-12-22 06:43:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22845 to 18072. [2020-12-22 06:43:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18072 states. [2020-12-22 06:43:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18072 states to 18072 states and 31769 transitions. [2020-12-22 06:43:24,884 INFO L78 Accepts]: Start accepts. Automaton has 18072 states and 31769 transitions. Word has length 100 [2020-12-22 06:43:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:24,884 INFO L481 AbstractCegarLoop]: Abstraction has 18072 states and 31769 transitions. [2020-12-22 06:43:24,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:24,884 INFO L276 IsEmpty]: Start isEmpty. Operand 18072 states and 31769 transitions. [2020-12-22 06:43:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 06:43:24,901 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:24,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:24,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 06:43:24,902 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:24,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:24,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1618815770, now seen corresponding path program 1 times [2020-12-22 06:43:24,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:24,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276270119] [2020-12-22 06:43:24,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:25,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:25,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276270119] [2020-12-22 06:43:25,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:25,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:25,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177831259] [2020-12-22 06:43:25,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:25,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:25,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:25,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:25,094 INFO L87 Difference]: Start difference. First operand 18072 states and 31769 transitions. Second operand 3 states. [2020-12-22 06:43:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:26,404 INFO L93 Difference]: Finished difference Result 53277 states and 93755 transitions. [2020-12-22 06:43:26,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:26,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-12-22 06:43:26,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:26,477 INFO L225 Difference]: With dead ends: 53277 [2020-12-22 06:43:26,478 INFO L226 Difference]: Without dead ends: 35423 [2020-12-22 06:43:26,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:26,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35423 states. [2020-12-22 06:43:27,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35423 to 30650. [2020-12-22 06:43:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30650 states. [2020-12-22 06:43:28,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30650 states to 30650 states and 54586 transitions. [2020-12-22 06:43:28,007 INFO L78 Accepts]: Start accepts. Automaton has 30650 states and 54586 transitions. Word has length 101 [2020-12-22 06:43:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:28,008 INFO L481 AbstractCegarLoop]: Abstraction has 30650 states and 54586 transitions. [2020-12-22 06:43:28,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:28,009 INFO L276 IsEmpty]: Start isEmpty. Operand 30650 states and 54586 transitions. [2020-12-22 06:43:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 06:43:28,021 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:28,021 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:28,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 06:43:28,022 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:28,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:28,022 INFO L82 PathProgramCache]: Analyzing trace with hash 586793031, now seen corresponding path program 2 times [2020-12-22 06:43:28,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:28,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686518641] [2020-12-22 06:43:28,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:28,124 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:28,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686518641] [2020-12-22 06:43:28,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:28,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:43:28,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625628692] [2020-12-22 06:43:28,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:43:28,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:28,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:43:28,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:43:28,127 INFO L87 Difference]: Start difference. First operand 30650 states and 54586 transitions. Second operand 4 states. [2020-12-22 06:43:31,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:31,076 INFO L93 Difference]: Finished difference Result 65732 states and 116284 transitions. [2020-12-22 06:43:31,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:43:31,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2020-12-22 06:43:31,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:31,144 INFO L225 Difference]: With dead ends: 65732 [2020-12-22 06:43:31,144 INFO L226 Difference]: Without dead ends: 35423 [2020-12-22 06:43:31,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:43:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35423 states. [2020-12-22 06:43:32,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35423 to 30650. [2020-12-22 06:43:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30650 states. [2020-12-22 06:43:32,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30650 states to 30650 states and 54522 transitions. [2020-12-22 06:43:32,711 INFO L78 Accepts]: Start accepts. Automaton has 30650 states and 54522 transitions. Word has length 101 [2020-12-22 06:43:32,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:32,711 INFO L481 AbstractCegarLoop]: Abstraction has 30650 states and 54522 transitions. [2020-12-22 06:43:32,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:43:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand 30650 states and 54522 transitions. [2020-12-22 06:43:32,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 06:43:32,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:32,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:32,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 06:43:32,725 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:32,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:32,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1923636448, now seen corresponding path program 1 times [2020-12-22 06:43:32,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:32,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255931493] [2020-12-22 06:43:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:33,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255931493] [2020-12-22 06:43:33,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:33,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:33,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628911105] [2020-12-22 06:43:33,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:33,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:33,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:33,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:33,336 INFO L87 Difference]: Start difference. First operand 30650 states and 54522 transitions. Second operand 3 states. [2020-12-22 06:43:35,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:35,790 INFO L93 Difference]: Finished difference Result 85585 states and 151556 transitions. [2020-12-22 06:43:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:35,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 06:43:35,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:35,870 INFO L225 Difference]: With dead ends: 85585 [2020-12-22 06:43:35,870 INFO L226 Difference]: Without dead ends: 55201 [2020-12-22 06:43:35,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:35,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55201 states. [2020-12-22 06:43:38,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55201 to 50428. [2020-12-22 06:43:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50428 states. [2020-12-22 06:43:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50428 states to 50428 states and 89659 transitions. [2020-12-22 06:43:38,158 INFO L78 Accepts]: Start accepts. Automaton has 50428 states and 89659 transitions. Word has length 102 [2020-12-22 06:43:38,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:38,159 INFO L481 AbstractCegarLoop]: Abstraction has 50428 states and 89659 transitions. [2020-12-22 06:43:38,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:38,159 INFO L276 IsEmpty]: Start isEmpty. Operand 50428 states and 89659 transitions. [2020-12-22 06:43:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 06:43:38,174 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:38,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:38,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 06:43:38,174 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:38,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:38,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1830007198, now seen corresponding path program 1 times [2020-12-22 06:43:38,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:38,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985303613] [2020-12-22 06:43:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:43:38,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985303613] [2020-12-22 06:43:38,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:38,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:43:38,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840939447] [2020-12-22 06:43:38,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:43:38,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:38,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:43:38,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:38,272 INFO L87 Difference]: Start difference. First operand 50428 states and 89659 transitions. Second operand 3 states. [2020-12-22 06:43:41,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:41,787 INFO L93 Difference]: Finished difference Result 142450 states and 253065 transitions. [2020-12-22 06:43:41,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:43:41,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-22 06:43:41,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:41,964 INFO L225 Difference]: With dead ends: 142450 [2020-12-22 06:43:41,964 INFO L226 Difference]: Without dead ends: 92323 [2020-12-22 06:43:42,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:43:42,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92323 states. [2020-12-22 06:43:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92323 to 87550. [2020-12-22 06:43:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87550 states. [2020-12-22 06:43:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87550 states to 87550 states and 155964 transitions. [2020-12-22 06:43:46,066 INFO L78 Accepts]: Start accepts. Automaton has 87550 states and 155964 transitions. Word has length 103 [2020-12-22 06:43:46,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:43:46,066 INFO L481 AbstractCegarLoop]: Abstraction has 87550 states and 155964 transitions. [2020-12-22 06:43:46,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:43:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 87550 states and 155964 transitions. [2020-12-22 06:43:46,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 06:43:46,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:43:46,078 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:43:46,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 06:43:46,078 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:43:46,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:43:46,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1047649148, now seen corresponding path program 1 times [2020-12-22 06:43:46,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:43:46,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145396548] [2020-12-22 06:43:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:43:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:43:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 06:43:46,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145396548] [2020-12-22 06:43:46,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:43:46,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:43:46,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736691119] [2020-12-22 06:43:46,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:43:46,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:43:46,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:43:46,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:43:46,187 INFO L87 Difference]: Start difference. First operand 87550 states and 155964 transitions. Second operand 6 states. [2020-12-22 06:43:53,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:43:53,278 INFO L93 Difference]: Finished difference Result 258390 states and 460108 transitions. [2020-12-22 06:43:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:43:53,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2020-12-22 06:43:53,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:43:53,828 INFO L225 Difference]: With dead ends: 258390 [2020-12-22 06:43:53,828 INFO L226 Difference]: Without dead ends: 171179 [2020-12-22 06:43:53,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:43:54,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171179 states.