/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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 05:52:32,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 05:52:32,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 05:52:32,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 05:52:32,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 05:52:32,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 05:52:32,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 05:52:32,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 05:52:32,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 05:52:32,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 05:52:32,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 05:52:32,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 05:52:32,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 05:52:32,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 05:52:32,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 05:52:32,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 05:52:32,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 05:52:32,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 05:52:32,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 05:52:32,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 05:52:32,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 05:52:32,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 05:52:32,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 05:52:32,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 05:52:32,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 05:52:32,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 05:52:32,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 05:52:32,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 05:52:32,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 05:52:32,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 05:52:32,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 05:52:32,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 05:52:32,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 05:52:32,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 05:52:32,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 05:52:32,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 05:52:32,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 05:52:32,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 05:52:32,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 05:52:32,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 05:52:32,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 05:52:32,360 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 05:52:32,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 05:52:32,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 05:52:32,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 05:52:32,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 05:52:32,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 05:52:32,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 05:52:32,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 05:52:32,362 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 05:52:32,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 05:52:32,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 05:52:32,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 05:52:32,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 05:52:32,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:52:32,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 05:52:32,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 05:52:32,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 05:52:32,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 05:52:32,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 05:52:32,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 05:52:32,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 05:52:32,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 05:52:32,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 05:52:32,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 05:52:32,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 05:52:32,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 05:52:32,747 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 05:52:32,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c [2020-12-22 05:52:32,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22291749/ad540834a82945a98b0d3b7e3f86e275/FLAGdd18e999d [2020-12-22 05:52:33,644 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 05:52:33,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c [2020-12-22 05:52:33,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22291749/ad540834a82945a98b0d3b7e3f86e275/FLAGdd18e999d [2020-12-22 05:52:33,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22291749/ad540834a82945a98b0d3b7e3f86e275 [2020-12-22 05:52:33,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 05:52:33,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 05:52:33,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 05:52:33,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 05:52:33,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 05:52:33,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:52:33" (1/1) ... [2020-12-22 05:52:33,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe248e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:33, skipping insertion in model container [2020-12-22 05:52:33,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:52:33" (1/1) ... [2020-12-22 05:52:33,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 05:52:33,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 05:52:34,490 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_product21.cil.c[58598,58611] [2020-12-22 05:52:34,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:52:34,611 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 05:52:34,727 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_product21.cil.c[58598,58611] [2020-12-22 05:52:34,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 05:52:34,856 INFO L208 MainTranslator]: Completed translation [2020-12-22 05:52:34,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34 WrapperNode [2020-12-22 05:52:34,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 05:52:34,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 05:52:34,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 05:52:34,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 05:52:34,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:34,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:35,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 05:52:35,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 05:52:35,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 05:52:35,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 05:52:35,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:35,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:35,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:35,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:35,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:36,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:36,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... [2020-12-22 05:52:36,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 05:52:36,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 05:52:36,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 05:52:36,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 05:52:36,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 05:52:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 05:52:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 05:52:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 05:52:36,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 05:53:03,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 05:53:03,971 INFO L299 CfgBuilder]: Removed 1891 assume(true) statements. [2020-12-22 05:53:03,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:53:03 BoogieIcfgContainer [2020-12-22 05:53:03,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 05:53:03,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 05:53:03,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 05:53:03,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 05:53:03,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:52:33" (1/3) ... [2020-12-22 05:53:03,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ab6f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:53:03, skipping insertion in model container [2020-12-22 05:53:03,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:52:34" (2/3) ... [2020-12-22 05:53:03,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ab6f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:53:03, skipping insertion in model container [2020-12-22 05:53:03,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:53:03" (3/3) ... [2020-12-22 05:53:03,990 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product21.cil.c [2020-12-22 05:53:03,996 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 05:53:04,005 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 05:53:04,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 05:53:04,076 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 05:53:04,077 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 05:53:04,077 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 05:53:04,077 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 05:53:04,077 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 05:53:04,077 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 05:53:04,077 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 05:53:04,077 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 05:53:04,199 INFO L276 IsEmpty]: Start isEmpty. Operand 9051 states. [2020-12-22 05:53:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 05:53:04,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:04,228 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 05:53:04,229 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 05:53:04,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:04,235 INFO L82 PathProgramCache]: Analyzing trace with hash -185442834, now seen corresponding path program 1 times [2020-12-22 05:53:04,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:04,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867087475] [2020-12-22 05:53:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:04,674 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 05:53:04,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867087475] [2020-12-22 05:53:04,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:04,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:53:04,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618116116] [2020-12-22 05:53:04,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:53:04,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:04,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:53:04,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:53:04,699 INFO L87 Difference]: Start difference. First operand 9051 states. Second operand 5 states. [2020-12-22 05:53:05,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:05,624 INFO L93 Difference]: Finished difference Result 21724 states and 41172 transitions. [2020-12-22 05:53:05,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:53:05,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-12-22 05:53:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:05,740 INFO L225 Difference]: With dead ends: 21724 [2020-12-22 05:53:05,741 INFO L226 Difference]: Without dead ends: 12677 [2020-12-22 05:53:05,770 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 05:53:05,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12677 states. [2020-12-22 05:53:06,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12677 to 9047. [2020-12-22 05:53:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9047 states. [2020-12-22 05:53:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9047 states to 9047 states and 17013 transitions. [2020-12-22 05:53:06,227 INFO L78 Accepts]: Start accepts. Automaton has 9047 states and 17013 transitions. Word has length 57 [2020-12-22 05:53:06,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:06,228 INFO L481 AbstractCegarLoop]: Abstraction has 9047 states and 17013 transitions. [2020-12-22 05:53:06,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:53:06,228 INFO L276 IsEmpty]: Start isEmpty. Operand 9047 states and 17013 transitions. [2020-12-22 05:53:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 05:53:06,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:06,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:53:06,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 05:53:06,239 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 05:53:06,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:06,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1058017694, now seen corresponding path program 1 times [2020-12-22 05:53:06,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:06,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612956030] [2020-12-22 05:53:06,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:06,410 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 05:53:06,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612956030] [2020-12-22 05:53:06,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:06,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:53:06,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957242198] [2020-12-22 05:53:06,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:53:06,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:06,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:53:06,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:53:06,414 INFO L87 Difference]: Start difference. First operand 9047 states and 17013 transitions. Second operand 4 states. [2020-12-22 05:53:07,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:07,694 INFO L93 Difference]: Finished difference Result 35950 states and 67598 transitions. [2020-12-22 05:53:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:53:07,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-12-22 05:53:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:07,805 INFO L225 Difference]: With dead ends: 35950 [2020-12-22 05:53:07,806 INFO L226 Difference]: Without dead ends: 26926 [2020-12-22 05:53:07,828 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 05:53:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26926 states. [2020-12-22 05:53:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26926 to 9062. [2020-12-22 05:53:08,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9062 states. [2020-12-22 05:53:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9062 states to 9062 states and 17028 transitions. [2020-12-22 05:53:08,975 INFO L78 Accepts]: Start accepts. Automaton has 9062 states and 17028 transitions. Word has length 59 [2020-12-22 05:53:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:08,976 INFO L481 AbstractCegarLoop]: Abstraction has 9062 states and 17028 transitions. [2020-12-22 05:53:08,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:53:08,977 INFO L276 IsEmpty]: Start isEmpty. Operand 9062 states and 17028 transitions. [2020-12-22 05:53:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 05:53:08,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:08,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:53:08,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 05:53:08,986 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 05:53:08,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:08,989 INFO L82 PathProgramCache]: Analyzing trace with hash -529830320, now seen corresponding path program 1 times [2020-12-22 05:53:08,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:08,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941903316] [2020-12-22 05:53:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:09,146 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 05:53:09,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941903316] [2020-12-22 05:53:09,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:09,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 05:53:09,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156124271] [2020-12-22 05:53:09,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:53:09,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:09,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:53:09,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:53:09,150 INFO L87 Difference]: Start difference. First operand 9062 states and 17028 transitions. Second operand 3 states. [2020-12-22 05:53:09,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:09,936 INFO L93 Difference]: Finished difference Result 26997 states and 50747 transitions. [2020-12-22 05:53:09,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:53:09,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 05:53:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:09,993 INFO L225 Difference]: With dead ends: 26997 [2020-12-22 05:53:09,994 INFO L226 Difference]: Without dead ends: 17948 [2020-12-22 05:53:10,020 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 05:53:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17948 states. [2020-12-22 05:53:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17948 to 9028. [2020-12-22 05:53:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9028 states. [2020-12-22 05:53:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 16960 transitions. [2020-12-22 05:53:10,462 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 16960 transitions. Word has length 61 [2020-12-22 05:53:10,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:10,470 INFO L481 AbstractCegarLoop]: Abstraction has 9028 states and 16960 transitions. [2020-12-22 05:53:10,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:53:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 16960 transitions. [2020-12-22 05:53:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 05:53:10,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:10,476 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] [2020-12-22 05:53:10,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 05:53:10,476 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 05:53:10,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:10,477 INFO L82 PathProgramCache]: Analyzing trace with hash 502779869, now seen corresponding path program 1 times [2020-12-22 05:53:10,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:10,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735526047] [2020-12-22 05:53:10,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:10,586 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 05:53:10,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735526047] [2020-12-22 05:53:10,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:10,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:53:10,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900413468] [2020-12-22 05:53:10,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:53:10,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:10,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:53:10,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:53:10,590 INFO L87 Difference]: Start difference. First operand 9028 states and 16960 transitions. Second operand 5 states. [2020-12-22 05:53:11,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:11,489 INFO L93 Difference]: Finished difference Result 21631 states and 40647 transitions. [2020-12-22 05:53:11,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:53:11,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2020-12-22 05:53:11,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:11,521 INFO L225 Difference]: With dead ends: 21631 [2020-12-22 05:53:11,522 INFO L226 Difference]: Without dead ends: 12622 [2020-12-22 05:53:11,540 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 05:53:11,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12622 states. [2020-12-22 05:53:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12622 to 9028. [2020-12-22 05:53:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9028 states. [2020-12-22 05:53:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 16954 transitions. [2020-12-22 05:53:11,976 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 16954 transitions. Word has length 63 [2020-12-22 05:53:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:11,978 INFO L481 AbstractCegarLoop]: Abstraction has 9028 states and 16954 transitions. [2020-12-22 05:53:11,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:53:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 16954 transitions. [2020-12-22 05:53:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 05:53:11,984 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:11,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:53:11,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 05:53:11,985 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 05:53:11,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:11,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1606739593, now seen corresponding path program 1 times [2020-12-22 05:53:11,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:11,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133036785] [2020-12-22 05:53:11,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:12,093 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 05:53:12,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133036785] [2020-12-22 05:53:12,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:12,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:53:12,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963248173] [2020-12-22 05:53:12,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:53:12,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:12,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:53:12,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:53:12,097 INFO L87 Difference]: Start difference. First operand 9028 states and 16954 transitions. Second operand 4 states. [2020-12-22 05:53:13,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:13,246 INFO L93 Difference]: Finished difference Result 35892 states and 67451 transitions. [2020-12-22 05:53:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:53:13,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2020-12-22 05:53:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:13,305 INFO L225 Difference]: With dead ends: 35892 [2020-12-22 05:53:13,305 INFO L226 Difference]: Without dead ends: 26889 [2020-12-22 05:53:13,324 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 05:53:13,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26889 states. [2020-12-22 05:53:13,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26889 to 9032. [2020-12-22 05:53:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9032 states. [2020-12-22 05:53:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 16957 transitions. [2020-12-22 05:53:13,935 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 16957 transitions. Word has length 65 [2020-12-22 05:53:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:13,935 INFO L481 AbstractCegarLoop]: Abstraction has 9032 states and 16957 transitions. [2020-12-22 05:53:13,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:53:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 16957 transitions. [2020-12-22 05:53:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 05:53:13,943 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:13,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:53:13,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 05:53:13,944 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 05:53:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:13,944 INFO L82 PathProgramCache]: Analyzing trace with hash -80582303, now seen corresponding path program 1 times [2020-12-22 05:53:13,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:13,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574830832] [2020-12-22 05:53:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:14,050 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 05:53:14,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574830832] [2020-12-22 05:53:14,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:14,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:53:14,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337578371] [2020-12-22 05:53:14,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:53:14,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:14,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:53:14,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:53:14,053 INFO L87 Difference]: Start difference. First operand 9032 states and 16957 transitions. Second operand 4 states. [2020-12-22 05:53:15,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:15,155 INFO L93 Difference]: Finished difference Result 35901 states and 67457 transitions. [2020-12-22 05:53:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:53:15,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-12-22 05:53:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:15,218 INFO L225 Difference]: With dead ends: 35901 [2020-12-22 05:53:15,219 INFO L226 Difference]: Without dead ends: 26894 [2020-12-22 05:53:15,236 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 05:53:15,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26894 states. [2020-12-22 05:53:15,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26894 to 9038. [2020-12-22 05:53:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9038 states. [2020-12-22 05:53:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 16962 transitions. [2020-12-22 05:53:15,870 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 16962 transitions. Word has length 66 [2020-12-22 05:53:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:15,875 INFO L481 AbstractCegarLoop]: Abstraction has 9038 states and 16962 transitions. [2020-12-22 05:53:15,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:53:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 16962 transitions. [2020-12-22 05:53:15,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 05:53:15,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:15,881 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] [2020-12-22 05:53:15,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 05:53:15,881 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 05:53:15,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:15,887 INFO L82 PathProgramCache]: Analyzing trace with hash -53143364, now seen corresponding path program 1 times [2020-12-22 05:53:15,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:15,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510472331] [2020-12-22 05:53:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:15,979 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 05:53:15,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510472331] [2020-12-22 05:53:15,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:15,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:53:15,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328428724] [2020-12-22 05:53:15,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:53:15,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:15,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:53:15,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:53:15,982 INFO L87 Difference]: Start difference. First operand 9038 states and 16962 transitions. Second operand 4 states. [2020-12-22 05:53:17,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:17,187 INFO L93 Difference]: Finished difference Result 35914 states and 67467 transitions. [2020-12-22 05:53:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:53:17,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-12-22 05:53:17,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:17,225 INFO L225 Difference]: With dead ends: 35914 [2020-12-22 05:53:17,225 INFO L226 Difference]: Without dead ends: 26901 [2020-12-22 05:53:17,240 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 05:53:17,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26901 states. [2020-12-22 05:53:17,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26901 to 9046. [2020-12-22 05:53:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9046 states. [2020-12-22 05:53:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 16969 transitions. [2020-12-22 05:53:17,815 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 16969 transitions. Word has length 67 [2020-12-22 05:53:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:17,815 INFO L481 AbstractCegarLoop]: Abstraction has 9046 states and 16969 transitions. [2020-12-22 05:53:17,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:53:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 16969 transitions. [2020-12-22 05:53:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 05:53:17,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:17,820 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] [2020-12-22 05:53:17,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 05:53:17,820 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 05:53:17,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:17,821 INFO L82 PathProgramCache]: Analyzing trace with hash 758666950, now seen corresponding path program 1 times [2020-12-22 05:53:17,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:17,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36080764] [2020-12-22 05:53:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:17,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:53:17,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36080764] [2020-12-22 05:53:17,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:17,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:53:17,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582214104] [2020-12-22 05:53:17,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:53:17,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:17,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:53:17,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:53:17,895 INFO L87 Difference]: Start difference. First operand 9046 states and 16969 transitions. Second operand 5 states. [2020-12-22 05:53:19,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:19,011 INFO L93 Difference]: Finished difference Result 28901 states and 54256 transitions. [2020-12-22 05:53:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:53:19,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2020-12-22 05:53:19,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:19,041 INFO L225 Difference]: With dead ends: 28901 [2020-12-22 05:53:19,041 INFO L226 Difference]: Without dead ends: 19884 [2020-12-22 05:53:19,049 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 05:53:19,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19884 states. [2020-12-22 05:53:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19884 to 9032. [2020-12-22 05:53:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9032 states. [2020-12-22 05:53:19,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 16943 transitions. [2020-12-22 05:53:19,549 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 16943 transitions. Word has length 68 [2020-12-22 05:53:19,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:19,549 INFO L481 AbstractCegarLoop]: Abstraction has 9032 states and 16943 transitions. [2020-12-22 05:53:19,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:53:19,549 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 16943 transitions. [2020-12-22 05:53:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 05:53:19,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:19,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:53:19,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 05:53:19,555 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 05:53:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:19,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1081944112, now seen corresponding path program 1 times [2020-12-22 05:53:19,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:19,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096669016] [2020-12-22 05:53:19,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:19,636 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 05:53:19,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096669016] [2020-12-22 05:53:19,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:19,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 05:53:19,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297971646] [2020-12-22 05:53:19,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:53:19,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:19,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:53:19,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:53:19,639 INFO L87 Difference]: Start difference. First operand 9032 states and 16943 transitions. Second operand 5 states. [2020-12-22 05:53:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:20,850 INFO L93 Difference]: Finished difference Result 28830 states and 54130 transitions. [2020-12-22 05:53:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 05:53:20,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-12-22 05:53:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:20,872 INFO L225 Difference]: With dead ends: 28830 [2020-12-22 05:53:20,872 INFO L226 Difference]: Without dead ends: 19858 [2020-12-22 05:53:20,880 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 05:53:20,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19858 states. [2020-12-22 05:53:21,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19858 to 9026. [2020-12-22 05:53:21,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9026 states. [2020-12-22 05:53:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9026 states to 9026 states and 16930 transitions. [2020-12-22 05:53:21,248 INFO L78 Accepts]: Start accepts. Automaton has 9026 states and 16930 transitions. Word has length 70 [2020-12-22 05:53:21,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:21,248 INFO L481 AbstractCegarLoop]: Abstraction has 9026 states and 16930 transitions. [2020-12-22 05:53:21,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 05:53:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9026 states and 16930 transitions. [2020-12-22 05:53:21,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 05:53:21,252 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:21,252 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] [2020-12-22 05:53:21,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 05:53:21,252 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 05:53:21,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:21,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1316238447, now seen corresponding path program 1 times [2020-12-22 05:53:21,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:21,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6094783] [2020-12-22 05:53:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:21,314 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 05:53:21,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6094783] [2020-12-22 05:53:21,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:21,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:53:21,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407412958] [2020-12-22 05:53:21,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 05:53:21,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:21,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 05:53:21,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 05:53:21,316 INFO L87 Difference]: Start difference. First operand 9026 states and 16930 transitions. Second operand 4 states. [2020-12-22 05:53:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:22,299 INFO L93 Difference]: Finished difference Result 21632 states and 40594 transitions. [2020-12-22 05:53:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 05:53:22,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 05:53:22,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:22,321 INFO L225 Difference]: With dead ends: 21632 [2020-12-22 05:53:22,321 INFO L226 Difference]: Without dead ends: 12659 [2020-12-22 05:53:22,332 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 05:53:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12659 states. [2020-12-22 05:53:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12659 to 9026. [2020-12-22 05:53:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9026 states. [2020-12-22 05:53:22,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9026 states to 9026 states and 16922 transitions. [2020-12-22 05:53:22,837 INFO L78 Accepts]: Start accepts. Automaton has 9026 states and 16922 transitions. Word has length 72 [2020-12-22 05:53:22,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:22,837 INFO L481 AbstractCegarLoop]: Abstraction has 9026 states and 16922 transitions. [2020-12-22 05:53:22,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 05:53:22,838 INFO L276 IsEmpty]: Start isEmpty. Operand 9026 states and 16922 transitions. [2020-12-22 05:53:22,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 05:53:22,842 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:22,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:53:22,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 05:53:22,842 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 05:53:22,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:22,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1329810693, now seen corresponding path program 1 times [2020-12-22 05:53:22,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:22,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317521059] [2020-12-22 05:53:22,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:22,920 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 05:53:22,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317521059] [2020-12-22 05:53:22,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:22,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:53:22,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447855644] [2020-12-22 05:53:22,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:53:22,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:22,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:53:22,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:53:22,923 INFO L87 Difference]: Start difference. First operand 9026 states and 16922 transitions. Second operand 3 states. [2020-12-22 05:53:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:24,868 INFO L93 Difference]: Finished difference Result 25005 states and 46899 transitions. [2020-12-22 05:53:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:53:24,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 05:53:24,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:24,886 INFO L225 Difference]: With dead ends: 25005 [2020-12-22 05:53:24,887 INFO L226 Difference]: Without dead ends: 16875 [2020-12-22 05:53:24,895 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 05:53:24,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16875 states. [2020-12-22 05:53:25,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16875 to 16855. [2020-12-22 05:53:25,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16855 states. [2020-12-22 05:53:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16855 states to 16855 states and 31526 transitions. [2020-12-22 05:53:25,628 INFO L78 Accepts]: Start accepts. Automaton has 16855 states and 31526 transitions. Word has length 73 [2020-12-22 05:53:25,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:25,628 INFO L481 AbstractCegarLoop]: Abstraction has 16855 states and 31526 transitions. [2020-12-22 05:53:25,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:53:25,629 INFO L276 IsEmpty]: Start isEmpty. Operand 16855 states and 31526 transitions. [2020-12-22 05:53:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 05:53:25,632 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:25,633 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] [2020-12-22 05:53:25,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 05:53:25,633 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 05:53:25,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:25,634 INFO L82 PathProgramCache]: Analyzing trace with hash -401331264, now seen corresponding path program 1 times [2020-12-22 05:53:25,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:25,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879645470] [2020-12-22 05:53:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:25,700 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 05:53:25,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879645470] [2020-12-22 05:53:25,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:25,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:53:25,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755259743] [2020-12-22 05:53:25,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:53:25,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:25,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:53:25,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:53:25,702 INFO L87 Difference]: Start difference. First operand 16855 states and 31526 transitions. Second operand 3 states. [2020-12-22 05:53:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:27,865 INFO L93 Difference]: Finished difference Result 47763 states and 89343 transitions. [2020-12-22 05:53:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:53:27,866 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-22 05:53:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:27,905 INFO L225 Difference]: With dead ends: 47763 [2020-12-22 05:53:27,905 INFO L226 Difference]: Without dead ends: 32441 [2020-12-22 05:53:27,925 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 05:53:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32441 states. [2020-12-22 05:53:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32441 to 32421. [2020-12-22 05:53:29,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32421 states. [2020-12-22 05:53:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32421 states to 32421 states and 60484 transitions. [2020-12-22 05:53:29,470 INFO L78 Accepts]: Start accepts. Automaton has 32421 states and 60484 transitions. Word has length 74 [2020-12-22 05:53:29,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:29,471 INFO L481 AbstractCegarLoop]: Abstraction has 32421 states and 60484 transitions. [2020-12-22 05:53:29,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:53:29,471 INFO L276 IsEmpty]: Start isEmpty. Operand 32421 states and 60484 transitions. [2020-12-22 05:53:29,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 05:53:29,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:29,475 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 05:53:29,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 05:53:29,476 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 05:53:29,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:29,476 INFO L82 PathProgramCache]: Analyzing trace with hash -2014021590, now seen corresponding path program 1 times [2020-12-22 05:53:29,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:29,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289933532] [2020-12-22 05:53:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:29,545 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 05:53:29,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289933532] [2020-12-22 05:53:29,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:29,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:53:29,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145130224] [2020-12-22 05:53:29,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:53:29,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:29,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:53:29,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:53:29,547 INFO L87 Difference]: Start difference. First operand 32421 states and 60484 transitions. Second operand 3 states. [2020-12-22 05:53:33,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:33,064 INFO L93 Difference]: Finished difference Result 93095 states and 173650 transitions. [2020-12-22 05:53:33,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:53:33,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 05:53:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:33,153 INFO L225 Difference]: With dead ends: 93095 [2020-12-22 05:53:33,154 INFO L226 Difference]: Without dead ends: 63373 [2020-12-22 05:53:33,183 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 05:53:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63373 states. [2020-12-22 05:53:35,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63373 to 63353. [2020-12-22 05:53:35,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63353 states. [2020-12-22 05:53:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63353 states to 63353 states and 117855 transitions. [2020-12-22 05:53:35,827 INFO L78 Accepts]: Start accepts. Automaton has 63353 states and 117855 transitions. Word has length 75 [2020-12-22 05:53:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:35,828 INFO L481 AbstractCegarLoop]: Abstraction has 63353 states and 117855 transitions. [2020-12-22 05:53:35,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:53:35,828 INFO L276 IsEmpty]: Start isEmpty. Operand 63353 states and 117855 transitions. [2020-12-22 05:53:35,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 05:53:35,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:35,832 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 05:53:35,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 05:53:35,833 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 05:53:35,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:35,833 INFO L82 PathProgramCache]: Analyzing trace with hash 45288645, now seen corresponding path program 1 times [2020-12-22 05:53:35,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:35,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061676962] [2020-12-22 05:53:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:35,897 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 05:53:35,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061676962] [2020-12-22 05:53:35,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:35,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:53:35,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407418687] [2020-12-22 05:53:35,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:53:35,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:35,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:53:35,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:53:35,900 INFO L87 Difference]: Start difference. First operand 63353 states and 117855 transitions. Second operand 3 states. [2020-12-22 05:53:41,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:41,919 INFO L93 Difference]: Finished difference Result 183359 states and 341009 transitions. [2020-12-22 05:53:41,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:53:41,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 05:53:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:42,117 INFO L225 Difference]: With dead ends: 183359 [2020-12-22 05:53:42,117 INFO L226 Difference]: Without dead ends: 124821 [2020-12-22 05:53:42,174 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 05:53:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124821 states. [2020-12-22 05:53:47,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124821 to 124801. [2020-12-22 05:53:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124801 states. [2020-12-22 05:53:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124801 states to 124801 states and 231462 transitions. [2020-12-22 05:53:47,550 INFO L78 Accepts]: Start accepts. Automaton has 124801 states and 231462 transitions. Word has length 76 [2020-12-22 05:53:47,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:53:47,550 INFO L481 AbstractCegarLoop]: Abstraction has 124801 states and 231462 transitions. [2020-12-22 05:53:47,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:53:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 124801 states and 231462 transitions. [2020-12-22 05:53:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 05:53:47,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:53:47,554 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 05:53:47,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 05:53:47,555 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 05:53:47,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:53:47,555 INFO L82 PathProgramCache]: Analyzing trace with hash -27500721, now seen corresponding path program 1 times [2020-12-22 05:53:47,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:53:47,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742530856] [2020-12-22 05:53:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:53:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:53:47,631 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 05:53:47,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742530856] [2020-12-22 05:53:47,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:53:47,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 05:53:47,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125045882] [2020-12-22 05:53:47,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 05:53:47,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:53:47,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 05:53:47,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 05:53:47,633 INFO L87 Difference]: Start difference. First operand 124801 states and 231462 transitions. Second operand 3 states. [2020-12-22 05:53:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:53:57,628 INFO L93 Difference]: Finished difference Result 363055 states and 673124 transitions. [2020-12-22 05:53:57,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 05:53:57,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 05:53:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:53:58,076 INFO L225 Difference]: With dead ends: 363055 [2020-12-22 05:53:58,077 INFO L226 Difference]: Without dead ends: 246869 [2020-12-22 05:53:58,400 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 05:53:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246869 states. [2020-12-22 05:54:08,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246869 to 246849. [2020-12-22 05:54:08,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246849 states. [2020-12-22 05:54:08,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246849 states to 246849 states and 456361 transitions. [2020-12-22 05:54:08,796 INFO L78 Accepts]: Start accepts. Automaton has 246849 states and 456361 transitions. Word has length 77 [2020-12-22 05:54:08,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 05:54:08,796 INFO L481 AbstractCegarLoop]: Abstraction has 246849 states and 456361 transitions. [2020-12-22 05:54:08,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 05:54:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 246849 states and 456361 transitions. [2020-12-22 05:54:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 05:54:08,803 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 05:54:08,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 05:54:08,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 05:54:08,804 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 05:54:08,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 05:54:08,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1895727313, now seen corresponding path program 1 times [2020-12-22 05:54:08,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 05:54:08,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826849059] [2020-12-22 05:54:08,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 05:54:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 05:54:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 05:54:08,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826849059] [2020-12-22 05:54:08,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 05:54:08,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 05:54:08,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924996457] [2020-12-22 05:54:08,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 05:54:08,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 05:54:08,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 05:54:08,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 05:54:08,908 INFO L87 Difference]: Start difference. First operand 246849 states and 456361 transitions. Second operand 5 states. [2020-12-22 05:54:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 05:54:38,011 INFO L93 Difference]: Finished difference Result 1087560 states and 2004441 transitions. [2020-12-22 05:54:38,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 05:54:38,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-12-22 05:54:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 05:54:41,322 INFO L225 Difference]: With dead ends: 1087560 [2020-12-22 05:54:41,323 INFO L226 Difference]: Without dead ends: 878064 [2020-12-22 05:54:41,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 05:54:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878064 states.