/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:08:31,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:08:31,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:08:31,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:08:31,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:08:31,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:08:31,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:08:31,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:08:31,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:08:31,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:08:31,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:08:31,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:08:31,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:08:31,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:08:31,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:08:31,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:08:31,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:08:31,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:08:31,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:08:31,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:08:31,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:08:31,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:08:31,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:08:31,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:08:31,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:08:31,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:08:31,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:08:31,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:08:31,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:08:31,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:08:31,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:08:31,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:08:31,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:08:31,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:08:31,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:08:31,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:08:31,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:08:31,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:08:31,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:08:31,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:08:31,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:08:31,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:08:31,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:08:31,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:08:31,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:08:31,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:08:31,768 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:08:31,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:08:31,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:08:31,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:08:31,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:08:31,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:08:31,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:08:31,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:08:31,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:08:31,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:08:31,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:08:31,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:08:31,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:08:31,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:08:31,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:08:31,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:08:31,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:08:31,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:08:31,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:08:31,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:08:31,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:08:31,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:08:32,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:08:32,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:08:32,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:08:32,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:08:32,294 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:08:32,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c [2020-12-22 06:08:32,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e82b5de7/37f36ac99447411186c38761643130c3/FLAG1807a6cc1 [2020-12-22 06:08:33,398 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:08:33,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c [2020-12-22 06:08:33,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e82b5de7/37f36ac99447411186c38761643130c3/FLAG1807a6cc1 [2020-12-22 06:08:33,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e82b5de7/37f36ac99447411186c38761643130c3 [2020-12-22 06:08:33,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:08:33,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:08:33,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:08:33,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:08:33,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:08:33,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:08:33" (1/1) ... [2020-12-22 06:08:33,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765c632a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:33, skipping insertion in model container [2020-12-22 06:08:33,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:08:33" (1/1) ... [2020-12-22 06:08:33,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:08:33,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:08:33,842 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c[1221,1234] [2020-12-22 06:08:34,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:08:34,458 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:08:34,492 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c[1221,1234] [2020-12-22 06:08:34,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:08:34,782 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:08:34,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34 WrapperNode [2020-12-22 06:08:34,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:08:34,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:08:34,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:08:34,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:08:34,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:34,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:35,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:08:35,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:08:35,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:08:35,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:08:35,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:35,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:35,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:35,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:35,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:35,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:35,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (1/1) ... [2020-12-22 06:08:36,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:08:36,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:08:36,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:08:36,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:08:36,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (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 06:08:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:08:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:08:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:08:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:08:49,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:08:49,390 INFO L299 CfgBuilder]: Removed 1377 assume(true) statements. [2020-12-22 06:08:49,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:08:49 BoogieIcfgContainer [2020-12-22 06:08:49,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:08:49,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:08:49,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:08:49,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:08:49,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:08:33" (1/3) ... [2020-12-22 06:08:49,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff91dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:08:49, skipping insertion in model container [2020-12-22 06:08:49,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:08:34" (2/3) ... [2020-12-22 06:08:49,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff91dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:08:49, skipping insertion in model container [2020-12-22 06:08:49,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:08:49" (3/3) ... [2020-12-22 06:08:49,410 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product11.cil.c [2020-12-22 06:08:49,417 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:08:49,425 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 06:08:49,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 06:08:49,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:08:49,507 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:08:49,507 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:08:49,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:08:49,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:08:49,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:08:49,508 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:08:49,508 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:08:49,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states. [2020-12-22 06:08:49,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 06:08:49,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:49,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:08:49,649 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:49,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:49,656 INFO L82 PathProgramCache]: Analyzing trace with hash -900787763, now seen corresponding path program 1 times [2020-12-22 06:08:49,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:49,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293630487] [2020-12-22 06:08:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:50,159 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 06:08:50,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293630487] [2020-12-22 06:08:50,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:50,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:08:50,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202344667] [2020-12-22 06:08:50,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:08:50,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:50,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:08:50,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:08:50,188 INFO L87 Difference]: Start difference. First operand 6093 states. Second operand 4 states. [2020-12-22 06:08:51,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:08:51,439 INFO L93 Difference]: Finished difference Result 24197 states and 45689 transitions. [2020-12-22 06:08:51,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:08:51,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-12-22 06:08:51,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:08:51,609 INFO L225 Difference]: With dead ends: 24197 [2020-12-22 06:08:51,610 INFO L226 Difference]: Without dead ends: 18117 [2020-12-22 06:08:51,642 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 06:08:51,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18117 states. [2020-12-22 06:08:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18117 to 6101. [2020-12-22 06:08:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6101 states. [2020-12-22 06:08:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 11498 transitions. [2020-12-22 06:08:52,088 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 11498 transitions. Word has length 47 [2020-12-22 06:08:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:08:52,088 INFO L481 AbstractCegarLoop]: Abstraction has 6101 states and 11498 transitions. [2020-12-22 06:08:52,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:08:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 11498 transitions. [2020-12-22 06:08:52,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 06:08:52,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:52,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:08:52,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:08:52,101 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:52,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:52,105 INFO L82 PathProgramCache]: Analyzing trace with hash 2027473068, now seen corresponding path program 1 times [2020-12-22 06:08:52,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:52,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184350633] [2020-12-22 06:08:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:52,297 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 06:08:52,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184350633] [2020-12-22 06:08:52,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:52,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:08:52,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536274892] [2020-12-22 06:08:52,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:08:52,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:52,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:08:52,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:08:52,305 INFO L87 Difference]: Start difference. First operand 6101 states and 11498 transitions. Second operand 3 states. [2020-12-22 06:08:52,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:08:52,527 INFO L93 Difference]: Finished difference Result 12118 states and 22843 transitions. [2020-12-22 06:08:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:08:52,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 06:08:52,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:08:52,583 INFO L225 Difference]: With dead ends: 12118 [2020-12-22 06:08:52,583 INFO L226 Difference]: Without dead ends: 6031 [2020-12-22 06:08:52,596 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 06:08:52,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2020-12-22 06:08:52,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 6031. [2020-12-22 06:08:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6031 states. [2020-12-22 06:08:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6031 states to 6031 states and 11358 transitions. [2020-12-22 06:08:52,783 INFO L78 Accepts]: Start accepts. Automaton has 6031 states and 11358 transitions. Word has length 48 [2020-12-22 06:08:52,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:08:52,783 INFO L481 AbstractCegarLoop]: Abstraction has 6031 states and 11358 transitions. [2020-12-22 06:08:52,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:08:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6031 states and 11358 transitions. [2020-12-22 06:08:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:08:52,788 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:52,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:08:52,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:08:52,789 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:52,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:52,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1087647829, now seen corresponding path program 1 times [2020-12-22 06:08:52,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:52,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466649905] [2020-12-22 06:08:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:52,957 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 06:08:52,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466649905] [2020-12-22 06:08:52,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:52,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:08:52,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926029455] [2020-12-22 06:08:52,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:08:52,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:52,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:08:52,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:08:52,960 INFO L87 Difference]: Start difference. First operand 6031 states and 11358 transitions. Second operand 4 states. [2020-12-22 06:08:53,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:08:53,310 INFO L93 Difference]: Finished difference Result 12036 states and 22679 transitions. [2020-12-22 06:08:53,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:08:53,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-12-22 06:08:53,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:08:53,330 INFO L225 Difference]: With dead ends: 12036 [2020-12-22 06:08:53,330 INFO L226 Difference]: Without dead ends: 6031 [2020-12-22 06:08:53,341 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 06:08:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2020-12-22 06:08:53,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 6031. [2020-12-22 06:08:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6031 states. [2020-12-22 06:08:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6031 states to 6031 states and 11356 transitions. [2020-12-22 06:08:53,716 INFO L78 Accepts]: Start accepts. Automaton has 6031 states and 11356 transitions. Word has length 51 [2020-12-22 06:08:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:08:53,726 INFO L481 AbstractCegarLoop]: Abstraction has 6031 states and 11356 transitions. [2020-12-22 06:08:53,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:08:53,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6031 states and 11356 transitions. [2020-12-22 06:08:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 06:08:53,734 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:53,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:08:53,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:08:53,735 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:53,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:53,738 INFO L82 PathProgramCache]: Analyzing trace with hash 777631482, now seen corresponding path program 1 times [2020-12-22 06:08:53,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:53,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384312027] [2020-12-22 06:08:53,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:53,859 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 06:08:53,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384312027] [2020-12-22 06:08:53,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:53,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:08:53,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332046765] [2020-12-22 06:08:53,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:08:53,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:53,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:08:53,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:08:53,862 INFO L87 Difference]: Start difference. First operand 6031 states and 11356 transitions. Second operand 4 states. [2020-12-22 06:08:54,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:08:54,128 INFO L93 Difference]: Finished difference Result 12036 states and 22676 transitions. [2020-12-22 06:08:54,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:08:54,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-12-22 06:08:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:08:54,146 INFO L225 Difference]: With dead ends: 12036 [2020-12-22 06:08:54,147 INFO L226 Difference]: Without dead ends: 6031 [2020-12-22 06:08:54,158 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 06:08:54,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2020-12-22 06:08:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 6031. [2020-12-22 06:08:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6031 states. [2020-12-22 06:08:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6031 states to 6031 states and 11354 transitions. [2020-12-22 06:08:54,529 INFO L78 Accepts]: Start accepts. Automaton has 6031 states and 11354 transitions. Word has length 52 [2020-12-22 06:08:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:08:54,530 INFO L481 AbstractCegarLoop]: Abstraction has 6031 states and 11354 transitions. [2020-12-22 06:08:54,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:08:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6031 states and 11354 transitions. [2020-12-22 06:08:54,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 06:08:54,532 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:54,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:08:54,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:08:54,533 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:54,533 INFO L82 PathProgramCache]: Analyzing trace with hash -205470790, now seen corresponding path program 1 times [2020-12-22 06:08:54,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:54,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937791255] [2020-12-22 06:08:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:54,648 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 06:08:54,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937791255] [2020-12-22 06:08:54,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:54,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:08:54,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835943893] [2020-12-22 06:08:54,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:08:54,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:54,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:08:54,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:08:54,652 INFO L87 Difference]: Start difference. First operand 6031 states and 11354 transitions. Second operand 4 states. [2020-12-22 06:08:54,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:08:54,955 INFO L93 Difference]: Finished difference Result 12036 states and 22673 transitions. [2020-12-22 06:08:54,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:08:54,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-12-22 06:08:54,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:08:54,977 INFO L225 Difference]: With dead ends: 12036 [2020-12-22 06:08:54,978 INFO L226 Difference]: Without dead ends: 6031 [2020-12-22 06:08:54,990 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 06:08:55,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2020-12-22 06:08:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 6031. [2020-12-22 06:08:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6031 states. [2020-12-22 06:08:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6031 states to 6031 states and 11352 transitions. [2020-12-22 06:08:55,346 INFO L78 Accepts]: Start accepts. Automaton has 6031 states and 11352 transitions. Word has length 53 [2020-12-22 06:08:55,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:08:55,347 INFO L481 AbstractCegarLoop]: Abstraction has 6031 states and 11352 transitions. [2020-12-22 06:08:55,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:08:55,347 INFO L276 IsEmpty]: Start isEmpty. Operand 6031 states and 11352 transitions. [2020-12-22 06:08:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 06:08:55,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:55,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:08:55,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:08:55,351 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:55,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:55,352 INFO L82 PathProgramCache]: Analyzing trace with hash -579400257, now seen corresponding path program 1 times [2020-12-22 06:08:55,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:55,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361225892] [2020-12-22 06:08:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:55,465 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 06:08:55,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361225892] [2020-12-22 06:08:55,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:55,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:08:55,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938342124] [2020-12-22 06:08:55,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:08:55,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:55,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:08:55,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:08:55,469 INFO L87 Difference]: Start difference. First operand 6031 states and 11352 transitions. Second operand 4 states. [2020-12-22 06:08:55,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:08:55,798 INFO L93 Difference]: Finished difference Result 12036 states and 22670 transitions. [2020-12-22 06:08:55,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:08:55,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-12-22 06:08:55,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:08:55,819 INFO L225 Difference]: With dead ends: 12036 [2020-12-22 06:08:55,819 INFO L226 Difference]: Without dead ends: 6031 [2020-12-22 06:08:55,831 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 06:08:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2020-12-22 06:08:56,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 6031. [2020-12-22 06:08:56,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6031 states. [2020-12-22 06:08:56,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6031 states to 6031 states and 11350 transitions. [2020-12-22 06:08:56,158 INFO L78 Accepts]: Start accepts. Automaton has 6031 states and 11350 transitions. Word has length 54 [2020-12-22 06:08:56,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:08:56,159 INFO L481 AbstractCegarLoop]: Abstraction has 6031 states and 11350 transitions. [2020-12-22 06:08:56,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:08:56,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6031 states and 11350 transitions. [2020-12-22 06:08:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 06:08:56,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:56,161 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 06:08:56,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:08:56,161 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:56,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:56,167 INFO L82 PathProgramCache]: Analyzing trace with hash 751158047, now seen corresponding path program 1 times [2020-12-22 06:08:56,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:56,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175733234] [2020-12-22 06:08:56,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:56,263 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 06:08:56,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175733234] [2020-12-22 06:08:56,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:56,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:08:56,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916082579] [2020-12-22 06:08:56,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:08:56,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:56,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:08:56,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:08:56,267 INFO L87 Difference]: Start difference. First operand 6031 states and 11350 transitions. Second operand 5 states. [2020-12-22 06:08:57,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:08:57,532 INFO L93 Difference]: Finished difference Result 17025 states and 31915 transitions. [2020-12-22 06:08:57,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:08:57,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-12-22 06:08:57,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:08:57,568 INFO L225 Difference]: With dead ends: 17025 [2020-12-22 06:08:57,568 INFO L226 Difference]: Without dead ends: 11064 [2020-12-22 06:08:57,581 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 06:08:57,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11064 states. [2020-12-22 06:08:58,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11064 to 10599. [2020-12-22 06:08:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10599 states. [2020-12-22 06:08:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10599 states to 10599 states and 19960 transitions. [2020-12-22 06:08:58,101 INFO L78 Accepts]: Start accepts. Automaton has 10599 states and 19960 transitions. Word has length 55 [2020-12-22 06:08:58,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:08:58,102 INFO L481 AbstractCegarLoop]: Abstraction has 10599 states and 19960 transitions. [2020-12-22 06:08:58,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:08:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 10599 states and 19960 transitions. [2020-12-22 06:08:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 06:08:58,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:08:58,104 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 06:08:58,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:08:58,105 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:08:58,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:08:58,105 INFO L82 PathProgramCache]: Analyzing trace with hash 48826274, now seen corresponding path program 1 times [2020-12-22 06:08:58,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:08:58,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120857458] [2020-12-22 06:08:58,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:08:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:08:58,246 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 06:08:58,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120857458] [2020-12-22 06:08:58,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:08:58,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:08:58,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148943389] [2020-12-22 06:08:58,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:08:58,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:08:58,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:08:58,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:08:58,249 INFO L87 Difference]: Start difference. First operand 10599 states and 19960 transitions. Second operand 5 states. [2020-12-22 06:09:03,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:03,046 INFO L93 Difference]: Finished difference Result 87664 states and 165257 transitions. [2020-12-22 06:09:03,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:09:03,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-12-22 06:09:03,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:03,372 INFO L225 Difference]: With dead ends: 87664 [2020-12-22 06:09:03,372 INFO L226 Difference]: Without dead ends: 77135 [2020-12-22 06:09:03,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:09:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77135 states. [2020-12-22 06:09:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77135 to 19849. [2020-12-22 06:09:04,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19849 states. [2020-12-22 06:09:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19849 states to 19849 states and 37381 transitions. [2020-12-22 06:09:04,969 INFO L78 Accepts]: Start accepts. Automaton has 19849 states and 37381 transitions. Word has length 55 [2020-12-22 06:09:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:04,970 INFO L481 AbstractCegarLoop]: Abstraction has 19849 states and 37381 transitions. [2020-12-22 06:09:04,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:09:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 19849 states and 37381 transitions. [2020-12-22 06:09:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 06:09:04,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:04,972 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 06:09:04,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:09:04,973 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:04,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:04,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1898568614, now seen corresponding path program 1 times [2020-12-22 06:09:04,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:04,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852961251] [2020-12-22 06:09:04,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:05,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852961251] [2020-12-22 06:09:05,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:05,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:09:05,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855897690] [2020-12-22 06:09:05,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:09:05,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:05,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:09:05,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:09:05,170 INFO L87 Difference]: Start difference. First operand 19849 states and 37381 transitions. Second operand 3 states. [2020-12-22 06:09:06,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:06,741 INFO L93 Difference]: Finished difference Result 58547 states and 110267 transitions. [2020-12-22 06:09:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:09:06,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-12-22 06:09:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:06,988 INFO L225 Difference]: With dead ends: 58547 [2020-12-22 06:09:06,989 INFO L226 Difference]: Without dead ends: 38730 [2020-12-22 06:09:07,034 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 06:09:07,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38730 states. [2020-12-22 06:09:07,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38730 to 19725. [2020-12-22 06:09:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19725 states. [2020-12-22 06:09:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19725 states to 19725 states and 37133 transitions. [2020-12-22 06:09:08,005 INFO L78 Accepts]: Start accepts. Automaton has 19725 states and 37133 transitions. Word has length 56 [2020-12-22 06:09:08,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:08,005 INFO L481 AbstractCegarLoop]: Abstraction has 19725 states and 37133 transitions. [2020-12-22 06:09:08,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:09:08,006 INFO L276 IsEmpty]: Start isEmpty. Operand 19725 states and 37133 transitions. [2020-12-22 06:09:08,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 06:09:08,007 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:08,008 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 06:09:08,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:09:08,008 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:08,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:08,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1270484393, now seen corresponding path program 1 times [2020-12-22 06:09:08,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:08,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720133186] [2020-12-22 06:09:08,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:08,091 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 06:09:08,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720133186] [2020-12-22 06:09:08,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:08,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:09:08,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203155263] [2020-12-22 06:09:08,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:09:08,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:08,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:09:08,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:09:08,093 INFO L87 Difference]: Start difference. First operand 19725 states and 37133 transitions. Second operand 5 states. [2020-12-22 06:09:12,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:12,367 INFO L93 Difference]: Finished difference Result 63927 states and 120279 transitions. [2020-12-22 06:09:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:09:12,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-12-22 06:09:12,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:12,449 INFO L225 Difference]: With dead ends: 63927 [2020-12-22 06:09:12,449 INFO L226 Difference]: Without dead ends: 44236 [2020-12-22 06:09:12,476 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 06:09:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44236 states. [2020-12-22 06:09:13,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44236 to 27192. [2020-12-22 06:09:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27192 states. [2020-12-22 06:09:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 50766 transitions. [2020-12-22 06:09:13,847 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 50766 transitions. Word has length 56 [2020-12-22 06:09:13,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:13,847 INFO L481 AbstractCegarLoop]: Abstraction has 27192 states and 50766 transitions. [2020-12-22 06:09:13,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:09:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 50766 transitions. [2020-12-22 06:09:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 06:09:13,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:13,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:09:13,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:09:13,850 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:13,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:13,851 INFO L82 PathProgramCache]: Analyzing trace with hash -849126646, now seen corresponding path program 1 times [2020-12-22 06:09:13,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:13,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475748669] [2020-12-22 06:09:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:13,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475748669] [2020-12-22 06:09:13,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:13,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:09:13,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011317794] [2020-12-22 06:09:13,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:09:13,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:13,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:09:13,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:09:13,932 INFO L87 Difference]: Start difference. First operand 27192 states and 50766 transitions. Second operand 5 states. [2020-12-22 06:09:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:16,405 INFO L93 Difference]: Finished difference Result 80184 states and 149816 transitions. [2020-12-22 06:09:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:09:16,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-12-22 06:09:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:16,503 INFO L225 Difference]: With dead ends: 80184 [2020-12-22 06:09:16,504 INFO L226 Difference]: Without dead ends: 53032 [2020-12-22 06:09:16,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:09:16,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53032 states. [2020-12-22 06:09:17,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53032 to 27192. [2020-12-22 06:09:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27192 states. [2020-12-22 06:09:17,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27192 states to 27192 states and 50646 transitions. [2020-12-22 06:09:17,806 INFO L78 Accepts]: Start accepts. Automaton has 27192 states and 50646 transitions. Word has length 59 [2020-12-22 06:09:17,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:17,807 INFO L481 AbstractCegarLoop]: Abstraction has 27192 states and 50646 transitions. [2020-12-22 06:09:17,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:09:17,807 INFO L276 IsEmpty]: Start isEmpty. Operand 27192 states and 50646 transitions. [2020-12-22 06:09:17,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 06:09:17,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:17,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:09:17,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:09:17,809 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:17,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1319927131, now seen corresponding path program 1 times [2020-12-22 06:09:17,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:17,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723455687] [2020-12-22 06:09:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:17,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723455687] [2020-12-22 06:09:17,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:17,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:09:17,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807408152] [2020-12-22 06:09:17,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:09:17,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:17,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:09:17,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:09:17,894 INFO L87 Difference]: Start difference. First operand 27192 states and 50646 transitions. Second operand 5 states. [2020-12-22 06:09:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:25,862 INFO L93 Difference]: Finished difference Result 229963 states and 429664 transitions. [2020-12-22 06:09:25,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:09:25,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-12-22 06:09:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:26,575 INFO L225 Difference]: With dead ends: 229963 [2020-12-22 06:09:26,576 INFO L226 Difference]: Without dead ends: 202837 [2020-12-22 06:09:26,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:09:26,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202837 states. [2020-12-22 06:09:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202837 to 52302. [2020-12-22 06:09:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52302 states. [2020-12-22 06:09:29,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52302 states to 52302 states and 97370 transitions. [2020-12-22 06:09:29,741 INFO L78 Accepts]: Start accepts. Automaton has 52302 states and 97370 transitions. Word has length 60 [2020-12-22 06:09:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:29,741 INFO L481 AbstractCegarLoop]: Abstraction has 52302 states and 97370 transitions. [2020-12-22 06:09:29,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:09:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 52302 states and 97370 transitions. [2020-12-22 06:09:29,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 06:09:29,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:29,743 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 06:09:29,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:09:29,743 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:29,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:29,744 INFO L82 PathProgramCache]: Analyzing trace with hash 435668207, now seen corresponding path program 1 times [2020-12-22 06:09:29,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:29,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609482122] [2020-12-22 06:09:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:29,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609482122] [2020-12-22 06:09:29,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:29,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:09:29,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527532253] [2020-12-22 06:09:29,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:09:29,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:29,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:09:29,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:09:29,822 INFO L87 Difference]: Start difference. First operand 52302 states and 97370 transitions. Second operand 3 states. [2020-12-22 06:09:33,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:33,959 INFO L93 Difference]: Finished difference Result 154634 states and 288217 transitions. [2020-12-22 06:09:33,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:09:33,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 06:09:33,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:34,237 INFO L225 Difference]: With dead ends: 154634 [2020-12-22 06:09:34,238 INFO L226 Difference]: Without dead ends: 102369 [2020-12-22 06:09:34,322 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 06:09:34,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102369 states. [2020-12-22 06:09:36,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102369 to 52048. [2020-12-22 06:09:36,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52048 states. [2020-12-22 06:09:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52048 states to 52048 states and 96869 transitions. [2020-12-22 06:09:36,941 INFO L78 Accepts]: Start accepts. Automaton has 52048 states and 96869 transitions. Word has length 61 [2020-12-22 06:09:36,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:36,942 INFO L481 AbstractCegarLoop]: Abstraction has 52048 states and 96869 transitions. [2020-12-22 06:09:36,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:09:36,942 INFO L276 IsEmpty]: Start isEmpty. Operand 52048 states and 96869 transitions. [2020-12-22 06:09:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 06:09:36,945 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:36,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:09:36,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:09:36,946 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:36,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:36,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1585354025, now seen corresponding path program 1 times [2020-12-22 06:09:36,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:36,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111440378] [2020-12-22 06:09:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:37,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111440378] [2020-12-22 06:09:37,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:37,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:09:37,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331407409] [2020-12-22 06:09:37,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:09:37,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:37,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:09:37,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:09:37,006 INFO L87 Difference]: Start difference. First operand 52048 states and 96869 transitions. Second operand 3 states. [2020-12-22 06:09:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:41,012 INFO L93 Difference]: Finished difference Result 154133 states and 287244 transitions. [2020-12-22 06:09:41,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:09:41,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-12-22 06:09:41,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:41,213 INFO L225 Difference]: With dead ends: 154133 [2020-12-22 06:09:41,213 INFO L226 Difference]: Without dead ends: 102128 [2020-12-22 06:09:41,271 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 06:09:41,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102128 states. [2020-12-22 06:09:43,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102128 to 51936. [2020-12-22 06:09:43,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51936 states. [2020-12-22 06:09:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51936 states to 51936 states and 96533 transitions. [2020-12-22 06:09:43,783 INFO L78 Accepts]: Start accepts. Automaton has 51936 states and 96533 transitions. Word has length 65 [2020-12-22 06:09:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:09:43,783 INFO L481 AbstractCegarLoop]: Abstraction has 51936 states and 96533 transitions. [2020-12-22 06:09:43,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:09:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 51936 states and 96533 transitions. [2020-12-22 06:09:43,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 06:09:43,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:09:43,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:09:43,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:09:43,786 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:09:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:09:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash -846688174, now seen corresponding path program 1 times [2020-12-22 06:09:43,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:09:43,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938097736] [2020-12-22 06:09:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:09:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:09:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:09:43,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938097736] [2020-12-22 06:09:43,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:09:43,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:09:43,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083973882] [2020-12-22 06:09:43,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:09:43,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:09:43,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:09:43,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:09:43,889 INFO L87 Difference]: Start difference. First operand 51936 states and 96533 transitions. Second operand 5 states. [2020-12-22 06:09:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:09:57,866 INFO L93 Difference]: Finished difference Result 436321 states and 814526 transitions. [2020-12-22 06:09:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:09:57,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-12-22 06:09:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:09:58,941 INFO L225 Difference]: With dead ends: 436321 [2020-12-22 06:09:58,941 INFO L226 Difference]: Without dead ends: 384446 [2020-12-22 06:09:59,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:09:59,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384446 states. [2020-12-22 06:10:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384446 to 101148. [2020-12-22 06:10:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101148 states. [2020-12-22 06:10:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101148 states to 101148 states and 187903 transitions. [2020-12-22 06:10:05,517 INFO L78 Accepts]: Start accepts. Automaton has 101148 states and 187903 transitions. Word has length 66 [2020-12-22 06:10:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:05,517 INFO L481 AbstractCegarLoop]: Abstraction has 101148 states and 187903 transitions. [2020-12-22 06:10:05,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:10:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand 101148 states and 187903 transitions. [2020-12-22 06:10:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 06:10:05,519 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:05,519 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 06:10:05,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 06:10:05,520 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:05,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:05,520 INFO L82 PathProgramCache]: Analyzing trace with hash -238932157, now seen corresponding path program 1 times [2020-12-22 06:10:05,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:05,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16342890] [2020-12-22 06:10:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:05,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16342890] [2020-12-22 06:10:05,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:05,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:10:05,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723713639] [2020-12-22 06:10:05,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:10:05,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:05,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:10:05,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:05,587 INFO L87 Difference]: Start difference. First operand 101148 states and 187903 transitions. Second operand 3 states. [2020-12-22 06:10:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:10:13,162 INFO L93 Difference]: Finished difference Result 299701 states and 557811 transitions. [2020-12-22 06:10:13,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:10:13,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 06:10:13,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:10:13,736 INFO L225 Difference]: With dead ends: 299701 [2020-12-22 06:10:13,736 INFO L226 Difference]: Without dead ends: 198603 [2020-12-22 06:10:13,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:10:13,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198603 states. [2020-12-22 06:10:18,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198603 to 101040. [2020-12-22 06:10:18,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101040 states. [2020-12-22 06:10:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101040 states to 101040 states and 187363 transitions. [2020-12-22 06:10:18,790 INFO L78 Accepts]: Start accepts. Automaton has 101040 states and 187363 transitions. Word has length 71 [2020-12-22 06:10:18,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:10:18,791 INFO L481 AbstractCegarLoop]: Abstraction has 101040 states and 187363 transitions. [2020-12-22 06:10:18,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:10:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 101040 states and 187363 transitions. [2020-12-22 06:10:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 06:10:18,792 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:10:18,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:10:18,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 06:10:18,792 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:10:18,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:10:18,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1246009672, now seen corresponding path program 1 times [2020-12-22 06:10:18,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:10:18,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704860899] [2020-12-22 06:10:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:10:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:10:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:10:18,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704860899] [2020-12-22 06:10:18,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:10:18,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:10:18,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781442854] [2020-12-22 06:10:18,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:10:18,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:10:18,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:10:18,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:10:18,882 INFO L87 Difference]: Start difference. First operand 101040 states and 187363 transitions. Second operand 5 states.