/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:54:51,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:54:51,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:54:51,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:54:51,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:54:51,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:54:51,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:54:51,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:54:51,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:54:51,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:54:51,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:54:51,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:54:51,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:54:51,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:54:51,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:54:51,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:54:51,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:54:51,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:54:51,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:54:51,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:54:51,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:54:51,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:54:51,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:54:51,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:54:51,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 05:54:51,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 05:54:51,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 05:54:51,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 05:54:51,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 05:54:51,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 05:54:51,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:54:51,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:54:51,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:54:51,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:54:51,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:54:51,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:54:51,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:54:51,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:54:51,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:54:51,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:54:51,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:54:51,150 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:54:51,177 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:54:51,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:54:51,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:54:51,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:54:51,183 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:54:51,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:54:51,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:54:51,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:54:51,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:54:51,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:54:51,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:54:51,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:54:51,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:54:51,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:54:51,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:54:51,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:54:51,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:54:51,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:54:51,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:54:51,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:54:51,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:54:51,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:54:51,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:54:51,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:54:51,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:54:51,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:54:51,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:54:51,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:54:51,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:54:51,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:54:51,638 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:54:51,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2020-12-22 05:54:51,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23e3dd34/300f5c8ac7bc45c5a4812c1f427c69d3/FLAG09cb0304d [2020-12-22 05:54:52,519 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:54:52,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2020-12-22 05:54:52,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23e3dd34/300f5c8ac7bc45c5a4812c1f427c69d3/FLAG09cb0304d [2020-12-22 05:54:52,711 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f23e3dd34/300f5c8ac7bc45c5a4812c1f427c69d3 [2020-12-22 05:54:52,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:54:52,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:54:52,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:54:52,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:54:52,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:54:52,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:54:52" (1/1) ... [2020-12-22 05:54:52,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18789399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:52, skipping insertion in model container [2020-12-22 05:54:52,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:54:52" (1/1) ... [2020-12-22 05:54:52,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:54:52,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:54:53,372 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c[61069,61082] [2020-12-22 05:54:53,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:54:53,434 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:54:53,529 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c[61069,61082] [2020-12-22 05:54:53,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:54:53,634 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:54:53,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53 WrapperNode [2020-12-22 05:54:53,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:54:53,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:54:53,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:54:53,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:54:53,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:53,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:54,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:54:54,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:54:54,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:54:54,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:54:54,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:54,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:55,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:55,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:55,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:56,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:56,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... [2020-12-22 05:54:56,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:54:56,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:54:56,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:54:56,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:54:56,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:54:56,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:54:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:54:56,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:54:56,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:55:31,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:55:31,229 INFO L299 CfgBuilder]: Removed 3811 assume(true) statements. [2020-12-22 05:55:31,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:55:31 BoogieIcfgContainer [2020-12-22 05:55:31,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:55:31,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:55:31,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:55:31,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:55:31,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:54:52" (1/3) ... [2020-12-22 05:55:31,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a83a0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:55:31, skipping insertion in model container [2020-12-22 05:55:31,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:54:53" (2/3) ... [2020-12-22 05:55:31,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a83a0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:55:31, skipping insertion in model container [2020-12-22 05:55:31,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:55:31" (3/3) ... [2020-12-22 05:55:31,260 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2020-12-22 05:55:31,267 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:55:31,278 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 05:55:31,300 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 05:55:31,391 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:55:31,391 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:55:31,391 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:55:31,391 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:55:31,391 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:55:31,391 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:55:31,392 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:55:31,392 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:55:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 17676 states. [2020-12-22 05:55:31,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 05:55:31,652 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:31,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:31,654 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:31,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1159219265, now seen corresponding path program 1 times [2020-12-22 05:55:31,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:31,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672581330] [2020-12-22 05:55:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:32,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672581330] [2020-12-22 05:55:32,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:32,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:32,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098890177] [2020-12-22 05:55:32,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:32,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:32,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:32,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:32,207 INFO L87 Difference]: Start difference. First operand 17676 states. Second operand 5 states. [2020-12-22 05:55:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:34,341 INFO L93 Difference]: Finished difference Result 42424 states and 80328 transitions. [2020-12-22 05:55:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:34,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-12-22 05:55:34,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:34,573 INFO L225 Difference]: With dead ends: 42424 [2020-12-22 05:55:34,574 INFO L226 Difference]: Without dead ends: 24752 [2020-12-22 05:55:34,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:55:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24752 states. [2020-12-22 05:55:35,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24752 to 17672. [2020-12-22 05:55:35,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17672 states. [2020-12-22 05:55:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17672 states to 17672 states and 33328 transitions. [2020-12-22 05:55:35,804 INFO L78 Accepts]: Start accepts. Automaton has 17672 states and 33328 transitions. Word has length 41 [2020-12-22 05:55:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:35,804 INFO L481 AbstractCegarLoop]: Abstraction has 17672 states and 33328 transitions. [2020-12-22 05:55:35,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 17672 states and 33328 transitions. [2020-12-22 05:55:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-22 05:55:35,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:35,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:35,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:55:35,811 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:35,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:35,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1365607243, now seen corresponding path program 1 times [2020-12-22 05:55:35,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:35,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502372757] [2020-12-22 05:55:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:35,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502372757] [2020-12-22 05:55:35,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:35,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:35,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161334849] [2020-12-22 05:55:35,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:35,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:35,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:35,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:35,979 INFO L87 Difference]: Start difference. First operand 17672 states and 33328 transitions. Second operand 4 states. [2020-12-22 05:55:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:38,803 INFO L93 Difference]: Finished difference Result 70450 states and 132858 transitions. [2020-12-22 05:55:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:38,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-12-22 05:55:38,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:39,041 INFO L225 Difference]: With dead ends: 70450 [2020-12-22 05:55:39,041 INFO L226 Difference]: Without dead ends: 52801 [2020-12-22 05:55:39,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:39,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52801 states. [2020-12-22 05:55:40,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52801 to 17687. [2020-12-22 05:55:40,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17687 states. [2020-12-22 05:55:40,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17687 states to 17687 states and 33343 transitions. [2020-12-22 05:55:40,413 INFO L78 Accepts]: Start accepts. Automaton has 17687 states and 33343 transitions. Word has length 43 [2020-12-22 05:55:40,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:40,413 INFO L481 AbstractCegarLoop]: Abstraction has 17687 states and 33343 transitions. [2020-12-22 05:55:40,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:40,414 INFO L276 IsEmpty]: Start isEmpty. Operand 17687 states and 33343 transitions. [2020-12-22 05:55:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 05:55:40,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:40,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:40,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:55:40,422 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:40,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:40,426 INFO L82 PathProgramCache]: Analyzing trace with hash -809527133, now seen corresponding path program 1 times [2020-12-22 05:55:40,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:40,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606732114] [2020-12-22 05:55:40,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:40,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606732114] [2020-12-22 05:55:40,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:40,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 05:55:40,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453774292] [2020-12-22 05:55:40,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:55:40,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:40,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:55:40,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:40,554 INFO L87 Difference]: Start difference. First operand 17687 states and 33343 transitions. Second operand 3 states. [2020-12-22 05:55:42,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:42,045 INFO L93 Difference]: Finished difference Result 52872 states and 99692 transitions. [2020-12-22 05:55:42,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:55:42,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-22 05:55:42,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:42,168 INFO L225 Difference]: With dead ends: 52872 [2020-12-22 05:55:42,168 INFO L226 Difference]: Without dead ends: 35198 [2020-12-22 05:55:42,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:55:42,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35198 states. [2020-12-22 05:55:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35198 to 17653. [2020-12-22 05:55:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17653 states. [2020-12-22 05:55:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17653 states to 17653 states and 33275 transitions. [2020-12-22 05:55:43,064 INFO L78 Accepts]: Start accepts. Automaton has 17653 states and 33275 transitions. Word has length 45 [2020-12-22 05:55:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:43,071 INFO L481 AbstractCegarLoop]: Abstraction has 17653 states and 33275 transitions. [2020-12-22 05:55:43,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:55:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 17653 states and 33275 transitions. [2020-12-22 05:55:43,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 05:55:43,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:43,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:43,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:55:43,076 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:43,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:43,076 INFO L82 PathProgramCache]: Analyzing trace with hash 995275824, now seen corresponding path program 1 times [2020-12-22 05:55:43,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:43,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254213965] [2020-12-22 05:55:43,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:43,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254213965] [2020-12-22 05:55:43,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:43,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:43,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804000781] [2020-12-22 05:55:43,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:43,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:43,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:43,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:43,178 INFO L87 Difference]: Start difference. First operand 17653 states and 33275 transitions. Second operand 5 states. [2020-12-22 05:55:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:44,745 INFO L93 Difference]: Finished difference Result 42331 states and 79803 transitions. [2020-12-22 05:55:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:44,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-12-22 05:55:44,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:44,825 INFO L225 Difference]: With dead ends: 42331 [2020-12-22 05:55:44,826 INFO L226 Difference]: Without dead ends: 24697 [2020-12-22 05:55:44,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 05:55:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24697 states. [2020-12-22 05:55:45,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24697 to 17653. [2020-12-22 05:55:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17653 states. [2020-12-22 05:55:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17653 states to 17653 states and 33269 transitions. [2020-12-22 05:55:45,800 INFO L78 Accepts]: Start accepts. Automaton has 17653 states and 33269 transitions. Word has length 47 [2020-12-22 05:55:45,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:45,801 INFO L481 AbstractCegarLoop]: Abstraction has 17653 states and 33269 transitions. [2020-12-22 05:55:45,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:45,801 INFO L276 IsEmpty]: Start isEmpty. Operand 17653 states and 33269 transitions. [2020-12-22 05:55:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 05:55:45,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:45,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:45,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 05:55:45,805 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:45,805 INFO L82 PathProgramCache]: Analyzing trace with hash -931106358, now seen corresponding path program 1 times [2020-12-22 05:55:45,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:45,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719681210] [2020-12-22 05:55:45,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:45,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719681210] [2020-12-22 05:55:45,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:45,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:45,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585941009] [2020-12-22 05:55:45,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:45,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:45,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:45,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:45,926 INFO L87 Difference]: Start difference. First operand 17653 states and 33269 transitions. Second operand 4 states. [2020-12-22 05:55:48,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:48,059 INFO L93 Difference]: Finished difference Result 70392 states and 132711 transitions. [2020-12-22 05:55:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:48,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-12-22 05:55:48,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:48,371 INFO L225 Difference]: With dead ends: 70392 [2020-12-22 05:55:48,371 INFO L226 Difference]: Without dead ends: 52764 [2020-12-22 05:55:48,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52764 states. [2020-12-22 05:55:49,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52764 to 17657. [2020-12-22 05:55:49,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17657 states. [2020-12-22 05:55:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17657 states to 17657 states and 33272 transitions. [2020-12-22 05:55:49,462 INFO L78 Accepts]: Start accepts. Automaton has 17657 states and 33272 transitions. Word has length 49 [2020-12-22 05:55:49,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:49,464 INFO L481 AbstractCegarLoop]: Abstraction has 17657 states and 33272 transitions. [2020-12-22 05:55:49,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:49,464 INFO L276 IsEmpty]: Start isEmpty. Operand 17657 states and 33272 transitions. [2020-12-22 05:55:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 05:55:49,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:49,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:49,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 05:55:49,475 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:49,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1733875124, now seen corresponding path program 1 times [2020-12-22 05:55:49,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:49,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760885470] [2020-12-22 05:55:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:49,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760885470] [2020-12-22 05:55:49,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:49,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:49,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998520405] [2020-12-22 05:55:49,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:49,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:49,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:49,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:49,601 INFO L87 Difference]: Start difference. First operand 17657 states and 33272 transitions. Second operand 4 states. [2020-12-22 05:55:51,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:51,632 INFO L93 Difference]: Finished difference Result 70401 states and 132717 transitions. [2020-12-22 05:55:51,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:51,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-12-22 05:55:51,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:51,894 INFO L225 Difference]: With dead ends: 70401 [2020-12-22 05:55:51,894 INFO L226 Difference]: Without dead ends: 52769 [2020-12-22 05:55:51,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:52,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52769 states. [2020-12-22 05:55:53,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52769 to 17663. [2020-12-22 05:55:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17663 states. [2020-12-22 05:55:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17663 states to 17663 states and 33277 transitions. [2020-12-22 05:55:53,145 INFO L78 Accepts]: Start accepts. Automaton has 17663 states and 33277 transitions. Word has length 50 [2020-12-22 05:55:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:53,145 INFO L481 AbstractCegarLoop]: Abstraction has 17663 states and 33277 transitions. [2020-12-22 05:55:53,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 17663 states and 33277 transitions. [2020-12-22 05:55:53,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 05:55:53,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:53,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:53,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 05:55:53,148 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:53,149 INFO L82 PathProgramCache]: Analyzing trace with hash 415472399, now seen corresponding path program 1 times [2020-12-22 05:55:53,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:53,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832172368] [2020-12-22 05:55:53,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:53,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832172368] [2020-12-22 05:55:53,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:53,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:55:53,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918126043] [2020-12-22 05:55:53,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:55:53,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:53,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:55:53,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:55:53,211 INFO L87 Difference]: Start difference. First operand 17663 states and 33277 transitions. Second operand 4 states. [2020-12-22 05:55:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:55,519 INFO L93 Difference]: Finished difference Result 70414 states and 132727 transitions. [2020-12-22 05:55:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:55:55,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-12-22 05:55:55,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:55,623 INFO L225 Difference]: With dead ends: 70414 [2020-12-22 05:55:55,623 INFO L226 Difference]: Without dead ends: 52776 [2020-12-22 05:55:55,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:55,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52776 states. [2020-12-22 05:55:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52776 to 17671. [2020-12-22 05:55:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17671 states. [2020-12-22 05:55:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17671 states to 17671 states and 33284 transitions. [2020-12-22 05:55:56,604 INFO L78 Accepts]: Start accepts. Automaton has 17671 states and 33284 transitions. Word has length 51 [2020-12-22 05:55:56,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:56,604 INFO L481 AbstractCegarLoop]: Abstraction has 17671 states and 33284 transitions. [2020-12-22 05:55:56,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:55:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 17671 states and 33284 transitions. [2020-12-22 05:55:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 05:55:56,608 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:56,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:56,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 05:55:56,609 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:56,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:56,610 INFO L82 PathProgramCache]: Analyzing trace with hash 166210841, now seen corresponding path program 1 times [2020-12-22 05:55:56,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:56,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840399992] [2020-12-22 05:55:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:56,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840399992] [2020-12-22 05:55:56,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:56,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:56,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476113181] [2020-12-22 05:55:56,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:56,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:56,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:56,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:56,757 INFO L87 Difference]: Start difference. First operand 17671 states and 33284 transitions. Second operand 5 states. [2020-12-22 05:55:58,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:55:58,802 INFO L93 Difference]: Finished difference Result 56501 states and 106464 transitions. [2020-12-22 05:55:58,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:55:58,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-12-22 05:55:58,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:55:58,864 INFO L225 Difference]: With dead ends: 56501 [2020-12-22 05:55:58,864 INFO L226 Difference]: Without dead ends: 38859 [2020-12-22 05:55:58,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:55:58,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38859 states. [2020-12-22 05:55:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38859 to 17657. [2020-12-22 05:55:59,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17657 states. [2020-12-22 05:55:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17657 states to 17657 states and 33258 transitions. [2020-12-22 05:55:59,883 INFO L78 Accepts]: Start accepts. Automaton has 17657 states and 33258 transitions. Word has length 52 [2020-12-22 05:55:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:55:59,884 INFO L481 AbstractCegarLoop]: Abstraction has 17657 states and 33258 transitions. [2020-12-22 05:55:59,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:55:59,884 INFO L276 IsEmpty]: Start isEmpty. Operand 17657 states and 33258 transitions. [2020-12-22 05:55:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 05:55:59,887 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:55:59,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:55:59,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 05:55:59,887 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:55:59,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:55:59,888 INFO L82 PathProgramCache]: Analyzing trace with hash 567935523, now seen corresponding path program 1 times [2020-12-22 05:55:59,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:55:59,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317828663] [2020-12-22 05:55:59,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:55:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:55:59,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:55:59,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317828663] [2020-12-22 05:55:59,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:55:59,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:55:59,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121212533] [2020-12-22 05:55:59,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:55:59,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:55:59,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:55:59,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:55:59,975 INFO L87 Difference]: Start difference. First operand 17657 states and 33258 transitions. Second operand 5 states. [2020-12-22 05:56:02,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:02,014 INFO L93 Difference]: Finished difference Result 56430 states and 106338 transitions. [2020-12-22 05:56:02,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:56:02,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-22 05:56:02,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:02,072 INFO L225 Difference]: With dead ends: 56430 [2020-12-22 05:56:02,072 INFO L226 Difference]: Without dead ends: 38833 [2020-12-22 05:56:02,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:56:02,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38833 states. [2020-12-22 05:56:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38833 to 17651. [2020-12-22 05:56:02,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17651 states. [2020-12-22 05:56:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17651 states to 17651 states and 33245 transitions. [2020-12-22 05:56:03,095 INFO L78 Accepts]: Start accepts. Automaton has 17651 states and 33245 transitions. Word has length 54 [2020-12-22 05:56:03,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:03,096 INFO L481 AbstractCegarLoop]: Abstraction has 17651 states and 33245 transitions. [2020-12-22 05:56:03,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:56:03,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17651 states and 33245 transitions. [2020-12-22 05:56:03,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-22 05:56:03,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:03,099 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:03,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 05:56:03,100 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:56:03,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:03,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1803451586, now seen corresponding path program 1 times [2020-12-22 05:56:03,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:03,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723035680] [2020-12-22 05:56:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:03,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723035680] [2020-12-22 05:56:03,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:03,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:56:03,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273556786] [2020-12-22 05:56:03,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:56:03,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:03,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:56:03,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:56:03,171 INFO L87 Difference]: Start difference. First operand 17651 states and 33245 transitions. Second operand 4 states. [2020-12-22 05:56:04,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:04,578 INFO L93 Difference]: Finished difference Result 42332 states and 79750 transitions. [2020-12-22 05:56:04,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:56:04,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-12-22 05:56:04,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:04,617 INFO L225 Difference]: With dead ends: 42332 [2020-12-22 05:56:04,618 INFO L226 Difference]: Without dead ends: 24734 [2020-12-22 05:56:04,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:56:04,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24734 states. [2020-12-22 05:56:05,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24734 to 17651. [2020-12-22 05:56:05,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17651 states. [2020-12-22 05:56:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17651 states to 17651 states and 33237 transitions. [2020-12-22 05:56:05,446 INFO L78 Accepts]: Start accepts. Automaton has 17651 states and 33237 transitions. Word has length 56 [2020-12-22 05:56:05,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:05,446 INFO L481 AbstractCegarLoop]: Abstraction has 17651 states and 33237 transitions. [2020-12-22 05:56:05,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:56:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 17651 states and 33237 transitions. [2020-12-22 05:56:05,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 05:56:05,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:05,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:05,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 05:56:05,450 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:56:05,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:05,450 INFO L82 PathProgramCache]: Analyzing trace with hash -11697832, now seen corresponding path program 1 times [2020-12-22 05:56:05,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:05,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693743615] [2020-12-22 05:56:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:05,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693743615] [2020-12-22 05:56:05,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:05,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:56:05,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62373595] [2020-12-22 05:56:05,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:56:05,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:05,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:56:05,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:05,549 INFO L87 Difference]: Start difference. First operand 17651 states and 33237 transitions. Second operand 3 states. [2020-12-22 05:56:08,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:08,283 INFO L93 Difference]: Finished difference Result 47261 states and 89061 transitions. [2020-12-22 05:56:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:56:08,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-12-22 05:56:08,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:08,321 INFO L225 Difference]: With dead ends: 47261 [2020-12-22 05:56:08,322 INFO L226 Difference]: Without dead ends: 33015 [2020-12-22 05:56:08,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33015 states. [2020-12-22 05:56:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33015 to 28043. [2020-12-22 05:56:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28043 states. [2020-12-22 05:56:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28043 states to 28043 states and 52801 transitions. [2020-12-22 05:56:09,696 INFO L78 Accepts]: Start accepts. Automaton has 28043 states and 52801 transitions. Word has length 57 [2020-12-22 05:56:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:09,696 INFO L481 AbstractCegarLoop]: Abstraction has 28043 states and 52801 transitions. [2020-12-22 05:56:09,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:56:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 28043 states and 52801 transitions. [2020-12-22 05:56:09,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 05:56:09,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:09,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:09,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 05:56:09,705 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:56:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1794038075, now seen corresponding path program 1 times [2020-12-22 05:56:09,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:09,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688662873] [2020-12-22 05:56:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:09,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688662873] [2020-12-22 05:56:09,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:09,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 05:56:09,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081903559] [2020-12-22 05:56:09,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 05:56:09,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:09,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 05:56:09,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 05:56:09,815 INFO L87 Difference]: Start difference. First operand 28043 states and 52801 transitions. Second operand 8 states. [2020-12-22 05:56:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:13,601 INFO L93 Difference]: Finished difference Result 74275 states and 138493 transitions. [2020-12-22 05:56:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 05:56:13,601 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-12-22 05:56:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:13,677 INFO L225 Difference]: With dead ends: 74275 [2020-12-22 05:56:13,677 INFO L226 Difference]: Without dead ends: 47470 [2020-12-22 05:56:13,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-12-22 05:56:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47470 states. [2020-12-22 05:56:15,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47470 to 27051. [2020-12-22 05:56:15,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27051 states. [2020-12-22 05:56:15,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27051 states to 27051 states and 50578 transitions. [2020-12-22 05:56:15,361 INFO L78 Accepts]: Start accepts. Automaton has 27051 states and 50578 transitions. Word has length 75 [2020-12-22 05:56:15,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:15,361 INFO L481 AbstractCegarLoop]: Abstraction has 27051 states and 50578 transitions. [2020-12-22 05:56:15,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 05:56:15,362 INFO L276 IsEmpty]: Start isEmpty. Operand 27051 states and 50578 transitions. [2020-12-22 05:56:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 05:56:15,367 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:15,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:15,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 05:56:15,367 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:56:15,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:15,368 INFO L82 PathProgramCache]: Analyzing trace with hash 442721376, now seen corresponding path program 1 times [2020-12-22 05:56:15,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:15,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710656174] [2020-12-22 05:56:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:15,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710656174] [2020-12-22 05:56:15,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:15,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:56:15,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488687399] [2020-12-22 05:56:15,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:56:15,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:15,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:56:15,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:15,444 INFO L87 Difference]: Start difference. First operand 27051 states and 50578 transitions. Second operand 3 states. [2020-12-22 05:56:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:19,092 INFO L93 Difference]: Finished difference Result 67116 states and 125552 transitions. [2020-12-22 05:56:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:56:19,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 05:56:19,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:19,146 INFO L225 Difference]: With dead ends: 67116 [2020-12-22 05:56:19,146 INFO L226 Difference]: Without dead ends: 41449 [2020-12-22 05:56:19,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:19,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41449 states. [2020-12-22 05:56:21,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41449 to 41429. [2020-12-22 05:56:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41429 states. [2020-12-22 05:56:21,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41429 states to 41429 states and 77155 transitions. [2020-12-22 05:56:21,329 INFO L78 Accepts]: Start accepts. Automaton has 41429 states and 77155 transitions. Word has length 76 [2020-12-22 05:56:21,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:21,329 INFO L481 AbstractCegarLoop]: Abstraction has 41429 states and 77155 transitions. [2020-12-22 05:56:21,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:56:21,329 INFO L276 IsEmpty]: Start isEmpty. Operand 41429 states and 77155 transitions. [2020-12-22 05:56:21,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 05:56:21,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:21,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:21,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 05:56:21,334 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:56:21,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:21,335 INFO L82 PathProgramCache]: Analyzing trace with hash -882471745, now seen corresponding path program 1 times [2020-12-22 05:56:21,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:21,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610847376] [2020-12-22 05:56:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:21,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610847376] [2020-12-22 05:56:21,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:21,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:56:21,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233032322] [2020-12-22 05:56:21,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:56:21,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:21,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:56:21,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:21,429 INFO L87 Difference]: Start difference. First operand 41429 states and 77155 transitions. Second operand 3 states. [2020-12-22 05:56:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:25,824 INFO L93 Difference]: Finished difference Result 109427 states and 203937 transitions. [2020-12-22 05:56:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:56:25,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 05:56:25,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:25,934 INFO L225 Difference]: With dead ends: 109427 [2020-12-22 05:56:25,934 INFO L226 Difference]: Without dead ends: 70019 [2020-12-22 05:56:25,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70019 states. [2020-12-22 05:56:29,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70019 to 69999. [2020-12-22 05:56:29,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69999 states. [2020-12-22 05:56:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69999 states to 69999 states and 130005 transitions. [2020-12-22 05:56:29,421 INFO L78 Accepts]: Start accepts. Automaton has 69999 states and 130005 transitions. Word has length 77 [2020-12-22 05:56:29,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:29,421 INFO L481 AbstractCegarLoop]: Abstraction has 69999 states and 130005 transitions. [2020-12-22 05:56:29,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:56:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 69999 states and 130005 transitions. [2020-12-22 05:56:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 05:56:29,426 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:29,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:29,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 05:56:29,426 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:56:29,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:29,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1499317253, now seen corresponding path program 1 times [2020-12-22 05:56:29,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:29,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883014892] [2020-12-22 05:56:29,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:29,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883014892] [2020-12-22 05:56:29,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:29,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:56:29,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334175305] [2020-12-22 05:56:29,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:56:29,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:29,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:56:29,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:29,501 INFO L87 Difference]: Start difference. First operand 69999 states and 130005 transitions. Second operand 3 states. [2020-12-22 05:56:36,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:36,265 INFO L93 Difference]: Finished difference Result 193569 states and 359735 transitions. [2020-12-22 05:56:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:56:36,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-22 05:56:36,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:36,676 INFO L225 Difference]: With dead ends: 193569 [2020-12-22 05:56:36,676 INFO L226 Difference]: Without dead ends: 126757 [2020-12-22 05:56:36,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:36,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126757 states. [2020-12-22 05:56:42,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126757 to 126737. [2020-12-22 05:56:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126737 states. [2020-12-22 05:56:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126737 states to 126737 states and 234831 transitions. [2020-12-22 05:56:42,930 INFO L78 Accepts]: Start accepts. Automaton has 126737 states and 234831 transitions. Word has length 78 [2020-12-22 05:56:42,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:56:42,930 INFO L481 AbstractCegarLoop]: Abstraction has 126737 states and 234831 transitions. [2020-12-22 05:56:42,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:56:42,931 INFO L276 IsEmpty]: Start isEmpty. Operand 126737 states and 234831 transitions. [2020-12-22 05:56:42,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 05:56:42,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:56:42,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:56:42,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 05:56:42,936 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:56:42,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:56:42,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1461532348, now seen corresponding path program 1 times [2020-12-22 05:56:42,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:56:42,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17061583] [2020-12-22 05:56:42,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:56:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:56:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:56:43,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17061583] [2020-12-22 05:56:43,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:56:43,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:56:43,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237194282] [2020-12-22 05:56:43,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:56:43,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:56:43,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:56:43,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:43,008 INFO L87 Difference]: Start difference. First operand 126737 states and 234831 transitions. Second operand 3 states. [2020-12-22 05:56:54,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:56:54,888 INFO L93 Difference]: Finished difference Result 360833 states and 668860 transitions. [2020-12-22 05:56:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:56:54,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 05:56:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:56:55,404 INFO L225 Difference]: With dead ends: 360833 [2020-12-22 05:56:55,404 INFO L226 Difference]: Without dead ends: 239399 [2020-12-22 05:56:55,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:56:55,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239399 states. [2020-12-22 05:57:09,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239399 to 239379. [2020-12-22 05:57:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239379 states. [2020-12-22 05:57:10,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239379 states to 239379 states and 442469 transitions. [2020-12-22 05:57:10,258 INFO L78 Accepts]: Start accepts. Automaton has 239379 states and 442469 transitions. Word has length 79 [2020-12-22 05:57:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:57:10,258 INFO L481 AbstractCegarLoop]: Abstraction has 239379 states and 442469 transitions. [2020-12-22 05:57:10,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:57:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 239379 states and 442469 transitions. [2020-12-22 05:57:10,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 05:57:10,262 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:57:10,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:57:10,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 05:57:10,262 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 05:57:10,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:57:10,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1754513322, now seen corresponding path program 1 times [2020-12-22 05:57:10,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:57:10,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845823002] [2020-12-22 05:57:10,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:57:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:57:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:57:10,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845823002] [2020-12-22 05:57:10,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:57:10,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:57:10,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797093707] [2020-12-22 05:57:10,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:57:10,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:57:10,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:57:10,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:57:10,350 INFO L87 Difference]: Start difference. First operand 239379 states and 442469 transitions. Second operand 3 states. [2020-12-22 05:57:32,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:57:32,374 INFO L93 Difference]: Finished difference Result 693261 states and 1281641 transitions. [2020-12-22 05:57:32,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:57:32,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2020-12-22 05:57:32,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:57:33,543 INFO L225 Difference]: With dead ends: 693261 [2020-12-22 05:57:33,543 INFO L226 Difference]: Without dead ends: 462985 [2020-12-22 05:57:34,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:57:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462985 states. [2020-12-22 05:57:57,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462985 to 462965. [2020-12-22 05:57:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462965 states. [2020-12-22 05:57:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462965 states to 462965 states and 853451 transitions. [2020-12-22 05:57:59,456 INFO L78 Accepts]: Start accepts. Automaton has 462965 states and 853451 transitions. Word has length 80 [2020-12-22 05:57:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:57:59,456 INFO L481 AbstractCegarLoop]: Abstraction has 462965 states and 853451 transitions. [2020-12-22 05:57:59,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:57:59,456 INFO L276 IsEmpty]: Start isEmpty. Operand 462965 states and 853451 transitions. [2020-12-22 05:57:59,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 05:57:59,462 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:57:59,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:57:59,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 05:57:59,462 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 05:57:59,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:57:59,463 INFO L82 PathProgramCache]: Analyzing trace with hash -617225940, now seen corresponding path program 1 times [2020-12-22 05:57:59,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:57:59,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735684618] [2020-12-22 05:57:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:57:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:57:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:57:59,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735684618] [2020-12-22 05:57:59,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:57:59,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:57:59,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012157041] [2020-12-22 05:57:59,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:57:59,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:57:59,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:57:59,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:57:59,576 INFO L87 Difference]: Start difference. First operand 462965 states and 853451 transitions. Second operand 5 states.