/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/eca-rers2012/Problem14_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 01:52:24,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 01:52:24,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 01:52:24,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 01:52:24,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 01:52:24,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 01:52:24,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 01:52:24,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 01:52:24,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 01:52:24,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 01:52:24,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 01:52:24,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 01:52:24,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 01:52:24,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 01:52:24,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 01:52:24,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 01:52:24,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 01:52:24,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 01:52:24,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 01:52:24,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 01:52:24,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 01:52:24,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 01:52:24,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 01:52:24,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 01:52:24,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 01:52:24,384 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 01:52:24,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 01:52:24,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 01:52:24,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 01:52:24,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 01:52:24,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 01:52:24,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 01:52:24,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 01:52:24,388 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 01:52:24,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 01:52:24,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 01:52:24,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 01:52:24,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 01:52:24,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:52:24,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 01:52:24,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 01:52:24,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 01:52:24,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 01:52:24,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 01:52:24,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 01:52:24,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 01:52:24,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 01:52:24,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 01:52:24,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 01:52:24,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 01:52:24,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 01:52:24,805 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 01:52:24,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label07.c [2020-12-22 01:52:24,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7bca2b7/2469b2afa3c041449a1fbc9473d2043b/FLAG33f537e88 [2020-12-22 01:52:25,655 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 01:52:25,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label07.c [2020-12-22 01:52:25,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7bca2b7/2469b2afa3c041449a1fbc9473d2043b/FLAG33f537e88 [2020-12-22 01:52:25,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7bca2b7/2469b2afa3c041449a1fbc9473d2043b [2020-12-22 01:52:25,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 01:52:25,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 01:52:25,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 01:52:25,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 01:52:25,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 01:52:25,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:52:25" (1/1) ... [2020-12-22 01:52:25,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a96a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:25, skipping insertion in model container [2020-12-22 01:52:25,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:52:25" (1/1) ... [2020-12-22 01:52:25,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 01:52:25,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 01:52:26,273 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/eca-rers2012/Problem14_label07.c[4912,4925] [2020-12-22 01:52:26,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:52:26,488 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 01:52:26,526 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/eca-rers2012/Problem14_label07.c[4912,4925] [2020-12-22 01:52:26,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:52:26,709 INFO L208 MainTranslator]: Completed translation [2020-12-22 01:52:26,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26 WrapperNode [2020-12-22 01:52:26,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 01:52:26,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 01:52:26,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 01:52:26,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 01:52:26,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 01:52:26,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 01:52:26,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 01:52:26,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 01:52:26,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (1/1) ... [2020-12-22 01:52:26,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 01:52:26,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 01:52:26,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 01:52:26,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 01:52:26,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (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 01:52:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 01:52:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 01:52:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 01:52:27,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 01:52:28,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 01:52:28,669 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 01:52:28,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:52:28 BoogieIcfgContainer [2020-12-22 01:52:28,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 01:52:28,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 01:52:28,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 01:52:28,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 01:52:28,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:52:25" (1/3) ... [2020-12-22 01:52:28,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6261556a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:52:28, skipping insertion in model container [2020-12-22 01:52:28,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:52:26" (2/3) ... [2020-12-22 01:52:28,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6261556a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:52:28, skipping insertion in model container [2020-12-22 01:52:28,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:52:28" (3/3) ... [2020-12-22 01:52:28,680 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label07.c [2020-12-22 01:52:28,687 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 01:52:28,692 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 01:52:28,710 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 01:52:28,738 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 01:52:28,738 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 01:52:28,738 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 01:52:28,738 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 01:52:28,738 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 01:52:28,739 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 01:52:28,739 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 01:52:28,739 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 01:52:28,760 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-22 01:52:28,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 01:52:28,768 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:28,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:28,769 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:28,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:28,775 INFO L82 PathProgramCache]: Analyzing trace with hash 433832817, now seen corresponding path program 1 times [2020-12-22 01:52:28,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:28,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942807157] [2020-12-22 01:52:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:29,103 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 01:52:29,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942807157] [2020-12-22 01:52:29,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:29,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:52:29,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716261138] [2020-12-22 01:52:29,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:29,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:29,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:29,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:52:29,129 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-22 01:52:30,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:30,195 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-22 01:52:30,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:30,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-12-22 01:52:30,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:30,214 INFO L225 Difference]: With dead ends: 669 [2020-12-22 01:52:30,214 INFO L226 Difference]: Without dead ends: 360 [2020-12-22 01:52:30,218 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 01:52:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-22 01:52:30,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-22 01:52:30,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-22 01:52:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-12-22 01:52:30,307 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 47 [2020-12-22 01:52:30,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:30,308 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-12-22 01:52:30,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-12-22 01:52:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-22 01:52:30,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:30,319 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:30,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 01:52:30,321 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:30,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:30,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1967938748, now seen corresponding path program 1 times [2020-12-22 01:52:30,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:30,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507473902] [2020-12-22 01:52:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:52:30,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507473902] [2020-12-22 01:52:30,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:30,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:52:30,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712198131] [2020-12-22 01:52:30,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:30,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:30,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:30,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:52:30,532 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-12-22 01:52:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:31,428 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2020-12-22 01:52:31,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:31,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-12-22 01:52:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:31,435 INFO L225 Difference]: With dead ends: 1074 [2020-12-22 01:52:31,435 INFO L226 Difference]: Without dead ends: 716 [2020-12-22 01:52:31,439 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 01:52:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-22 01:52:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2020-12-22 01:52:31,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-12-22 01:52:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 838 transitions. [2020-12-22 01:52:31,475 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 838 transitions. Word has length 112 [2020-12-22 01:52:31,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:31,476 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 838 transitions. [2020-12-22 01:52:31,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 838 transitions. [2020-12-22 01:52:31,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 01:52:31,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:31,482 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:31,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 01:52:31,482 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:31,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:31,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1697201153, now seen corresponding path program 1 times [2020-12-22 01:52:31,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:31,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956372613] [2020-12-22 01:52:31,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:52:31,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956372613] [2020-12-22 01:52:31,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:31,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:52:31,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493202172] [2020-12-22 01:52:31,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:52:31,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:31,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:52:31,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:52:31,758 INFO L87 Difference]: Start difference. First operand 538 states and 838 transitions. Second operand 4 states. [2020-12-22 01:52:33,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:33,494 INFO L93 Difference]: Finished difference Result 1786 states and 2801 transitions. [2020-12-22 01:52:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:52:33,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2020-12-22 01:52:33,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:33,509 INFO L225 Difference]: With dead ends: 1786 [2020-12-22 01:52:33,509 INFO L226 Difference]: Without dead ends: 1250 [2020-12-22 01:52:33,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 01:52:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-22 01:52:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-12-22 01:52:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-22 01:52:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1414 transitions. [2020-12-22 01:52:33,538 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1414 transitions. Word has length 126 [2020-12-22 01:52:33,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:33,539 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1414 transitions. [2020-12-22 01:52:33,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:52:33,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1414 transitions. [2020-12-22 01:52:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-12-22 01:52:33,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:33,543 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:33,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 01:52:33,544 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:33,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:33,545 INFO L82 PathProgramCache]: Analyzing trace with hash 18940108, now seen corresponding path program 1 times [2020-12-22 01:52:33,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:33,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838610693] [2020-12-22 01:52:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 01:52:33,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838610693] [2020-12-22 01:52:33,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:33,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:52:33,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236551373] [2020-12-22 01:52:33,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:52:33,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:33,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:52:33,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:52:33,807 INFO L87 Difference]: Start difference. First operand 1072 states and 1414 transitions. Second operand 4 states. [2020-12-22 01:52:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:35,045 INFO L93 Difference]: Finished difference Result 2349 states and 3213 transitions. [2020-12-22 01:52:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:52:35,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2020-12-22 01:52:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:35,054 INFO L225 Difference]: With dead ends: 2349 [2020-12-22 01:52:35,054 INFO L226 Difference]: Without dead ends: 1428 [2020-12-22 01:52:35,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:52:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-12-22 01:52:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-12-22 01:52:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-22 01:52:35,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1642 transitions. [2020-12-22 01:52:35,087 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1642 transitions. Word has length 206 [2020-12-22 01:52:35,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:35,087 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1642 transitions. [2020-12-22 01:52:35,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:52:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1642 transitions. [2020-12-22 01:52:35,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-12-22 01:52:35,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:35,092 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:35,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 01:52:35,093 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:35,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:35,094 INFO L82 PathProgramCache]: Analyzing trace with hash -579048892, now seen corresponding path program 1 times [2020-12-22 01:52:35,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:35,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131785529] [2020-12-22 01:52:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-22 01:52:35,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131785529] [2020-12-22 01:52:35,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:35,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:52:35,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191030887] [2020-12-22 01:52:35,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:35,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:35,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:35,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:52:35,576 INFO L87 Difference]: Start difference. First operand 1428 states and 1642 transitions. Second operand 3 states. [2020-12-22 01:52:36,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:36,332 INFO L93 Difference]: Finished difference Result 2854 states and 3329 transitions. [2020-12-22 01:52:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:36,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-12-22 01:52:36,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:36,343 INFO L225 Difference]: With dead ends: 2854 [2020-12-22 01:52:36,343 INFO L226 Difference]: Without dead ends: 1606 [2020-12-22 01:52:36,345 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 01:52:36,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-22 01:52:36,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-12-22 01:52:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-22 01:52:36,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1849 transitions. [2020-12-22 01:52:36,382 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1849 transitions. Word has length 337 [2020-12-22 01:52:36,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:36,384 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1849 transitions. [2020-12-22 01:52:36,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:36,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1849 transitions. [2020-12-22 01:52:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-12-22 01:52:36,392 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:36,393 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:36,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 01:52:36,393 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:36,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:36,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1874831652, now seen corresponding path program 1 times [2020-12-22 01:52:36,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:36,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748880497] [2020-12-22 01:52:36,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 189 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-12-22 01:52:36,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748880497] [2020-12-22 01:52:36,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434426056] [2020-12-22 01:52:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:52:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:37,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:52:37,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:52:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-12-22 01:52:37,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:52:37,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 01:52:37,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767520963] [2020-12-22 01:52:37,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:37,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:37,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:37,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:52:37,902 INFO L87 Difference]: Start difference. First operand 1606 states and 1849 transitions. Second operand 3 states. [2020-12-22 01:52:38,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:38,662 INFO L93 Difference]: Finished difference Result 3566 states and 4203 transitions. [2020-12-22 01:52:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:38,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 340 [2020-12-22 01:52:38,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:38,674 INFO L225 Difference]: With dead ends: 3566 [2020-12-22 01:52:38,674 INFO L226 Difference]: Without dead ends: 2140 [2020-12-22 01:52:38,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:52:38,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-22 01:52:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-12-22 01:52:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-22 01:52:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2229 transitions. [2020-12-22 01:52:38,722 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2229 transitions. Word has length 340 [2020-12-22 01:52:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:38,723 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2229 transitions. [2020-12-22 01:52:38,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2229 transitions. [2020-12-22 01:52:38,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2020-12-22 01:52:38,732 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:38,732 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:38,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 01:52:38,946 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:38,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:38,953 INFO L82 PathProgramCache]: Analyzing trace with hash -532753135, now seen corresponding path program 1 times [2020-12-22 01:52:38,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:38,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074753496] [2020-12-22 01:52:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:39,474 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-12-22 01:52:39,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074753496] [2020-12-22 01:52:39,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:39,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:52:39,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847289968] [2020-12-22 01:52:39,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:52:39,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:39,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:52:39,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:52:39,478 INFO L87 Difference]: Start difference. First operand 1962 states and 2229 transitions. Second operand 4 states. [2020-12-22 01:52:40,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:40,389 INFO L93 Difference]: Finished difference Result 3951 states and 4507 transitions. [2020-12-22 01:52:40,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:52:40,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 417 [2020-12-22 01:52:40,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:40,400 INFO L225 Difference]: With dead ends: 3951 [2020-12-22 01:52:40,400 INFO L226 Difference]: Without dead ends: 2140 [2020-12-22 01:52:40,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:52:40,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-22 01:52:40,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-12-22 01:52:40,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-22 01:52:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2147 transitions. [2020-12-22 01:52:40,448 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2147 transitions. Word has length 417 [2020-12-22 01:52:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:40,449 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2147 transitions. [2020-12-22 01:52:40,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:52:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2147 transitions. [2020-12-22 01:52:40,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2020-12-22 01:52:40,458 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:40,459 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:40,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 01:52:40,459 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:40,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:40,460 INFO L82 PathProgramCache]: Analyzing trace with hash -793674704, now seen corresponding path program 2 times [2020-12-22 01:52:40,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:40,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151452916] [2020-12-22 01:52:40,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:40,975 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-22 01:52:41,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151452916] [2020-12-22 01:52:41,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:41,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:52:41,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134728522] [2020-12-22 01:52:41,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:41,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:41,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:41,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:52:41,006 INFO L87 Difference]: Start difference. First operand 1962 states and 2147 transitions. Second operand 3 states. [2020-12-22 01:52:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:41,717 INFO L93 Difference]: Finished difference Result 4278 states and 4730 transitions. [2020-12-22 01:52:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:41,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 443 [2020-12-22 01:52:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:41,730 INFO L225 Difference]: With dead ends: 4278 [2020-12-22 01:52:41,730 INFO L226 Difference]: Without dead ends: 2496 [2020-12-22 01:52:41,733 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 01:52:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-12-22 01:52:41,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2140. [2020-12-22 01:52:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-22 01:52:41,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2325 transitions. [2020-12-22 01:52:41,775 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2325 transitions. Word has length 443 [2020-12-22 01:52:41,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:41,776 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2325 transitions. [2020-12-22 01:52:41,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:41,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2325 transitions. [2020-12-22 01:52:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2020-12-22 01:52:41,784 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:41,785 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:41,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 01:52:41,785 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:41,786 INFO L82 PathProgramCache]: Analyzing trace with hash 378158903, now seen corresponding path program 1 times [2020-12-22 01:52:41,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:41,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691066277] [2020-12-22 01:52:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-22 01:52:42,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691066277] [2020-12-22 01:52:42,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:52:42,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:52:42,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996027130] [2020-12-22 01:52:42,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:42,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:42,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:42,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:52:42,176 INFO L87 Difference]: Start difference. First operand 2140 states and 2325 transitions. Second operand 3 states. [2020-12-22 01:52:42,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:42,926 INFO L93 Difference]: Finished difference Result 4990 states and 5484 transitions. [2020-12-22 01:52:42,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:42,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 450 [2020-12-22 01:52:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:42,940 INFO L225 Difference]: With dead ends: 4990 [2020-12-22 01:52:42,941 INFO L226 Difference]: Without dead ends: 3030 [2020-12-22 01:52:42,944 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 01:52:42,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-12-22 01:52:43,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2020-12-22 01:52:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-12-22 01:52:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3277 transitions. [2020-12-22 01:52:43,014 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3277 transitions. Word has length 450 [2020-12-22 01:52:43,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:43,015 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3277 transitions. [2020-12-22 01:52:43,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:43,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3277 transitions. [2020-12-22 01:52:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-12-22 01:52:43,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:43,020 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:43,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 01:52:43,020 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:43,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:43,021 INFO L82 PathProgramCache]: Analyzing trace with hash 600383086, now seen corresponding path program 1 times [2020-12-22 01:52:43,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:43,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592839462] [2020-12-22 01:52:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 429 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 01:52:43,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592839462] [2020-12-22 01:52:43,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616808305] [2020-12-22 01:52:43,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:52:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:43,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:52:43,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:52:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2020-12-22 01:52:44,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:52:44,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:52:44,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746497360] [2020-12-22 01:52:44,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:44,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:44,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:44,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:52:44,584 INFO L87 Difference]: Start difference. First operand 3030 states and 3277 transitions. Second operand 3 states. [2020-12-22 01:52:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:45,330 INFO L93 Difference]: Finished difference Result 6236 states and 6811 transitions. [2020-12-22 01:52:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:45,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 495 [2020-12-22 01:52:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:45,346 INFO L225 Difference]: With dead ends: 6236 [2020-12-22 01:52:45,346 INFO L226 Difference]: Without dead ends: 3386 [2020-12-22 01:52:45,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:52:45,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-12-22 01:52:45,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2020-12-22 01:52:45,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-12-22 01:52:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3470 transitions. [2020-12-22 01:52:45,412 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3470 transitions. Word has length 495 [2020-12-22 01:52:45,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:45,413 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3470 transitions. [2020-12-22 01:52:45,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3470 transitions. [2020-12-22 01:52:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2020-12-22 01:52:45,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:45,420 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:45,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 01:52:45,634 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:45,636 INFO L82 PathProgramCache]: Analyzing trace with hash 991164740, now seen corresponding path program 1 times [2020-12-22 01:52:45,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:45,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559017684] [2020-12-22 01:52:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 814 proven. 195 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-12-22 01:52:46,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559017684] [2020-12-22 01:52:46,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181877756] [2020-12-22 01:52:46,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:52:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:46,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:52:46,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:52:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1159 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2020-12-22 01:52:47,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:52:47,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:52:47,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073769482] [2020-12-22 01:52:47,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:47,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:47,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:47,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:52:47,601 INFO L87 Difference]: Start difference. First operand 3208 states and 3470 transitions. Second operand 3 states. [2020-12-22 01:52:48,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:48,321 INFO L93 Difference]: Finished difference Result 3922 states and 4216 transitions. [2020-12-22 01:52:48,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:48,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 600 [2020-12-22 01:52:48,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:48,340 INFO L225 Difference]: With dead ends: 3922 [2020-12-22 01:52:48,340 INFO L226 Difference]: Without dead ends: 3920 [2020-12-22 01:52:48,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 599 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:52:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-22 01:52:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3208. [2020-12-22 01:52:48,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-12-22 01:52:48,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3469 transitions. [2020-12-22 01:52:48,407 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3469 transitions. Word has length 600 [2020-12-22 01:52:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:48,409 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3469 transitions. [2020-12-22 01:52:48,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3469 transitions. [2020-12-22 01:52:48,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-12-22 01:52:48,417 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:52:48,417 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:52:48,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 01:52:48,632 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:52:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:52:48,633 INFO L82 PathProgramCache]: Analyzing trace with hash -545596067, now seen corresponding path program 1 times [2020-12-22 01:52:48,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:52:48,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319896564] [2020-12-22 01:52:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:52:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:49,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 890 proven. 195 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-12-22 01:52:49,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319896564] [2020-12-22 01:52:49,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370572879] [2020-12-22 01:52:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:52:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:52:49,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:52:49,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:52:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2020-12-22 01:52:50,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:52:50,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:52:50,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628589843] [2020-12-22 01:52:50,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:52:50,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:52:50,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:52:50,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:52:50,450 INFO L87 Difference]: Start difference. First operand 3208 states and 3469 transitions. Second operand 3 states. [2020-12-22 01:52:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:52:51,223 INFO L93 Difference]: Finished difference Result 7302 states and 7926 transitions. [2020-12-22 01:52:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:52:51,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 619 [2020-12-22 01:52:51,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:52:51,226 INFO L225 Difference]: With dead ends: 7302 [2020-12-22 01:52:51,226 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 01:52:51,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:52:51,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 01:52:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 01:52:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 01:52:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 01:52:51,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 619 [2020-12-22 01:52:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:52:51,235 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 01:52:51,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:52:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 01:52:51,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 01:52:51,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:52:51,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 01:52:51,670 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2020-12-22 01:52:51,779 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2020-12-22 01:52:51,783 INFO L189 CegarLoopUtils]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-22 01:52:51,783 INFO L189 CegarLoopUtils]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-22 01:52:51,783 INFO L189 CegarLoopUtils]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-22 01:52:51,783 INFO L189 CegarLoopUtils]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-22 01:52:51,783 INFO L189 CegarLoopUtils]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-22 01:52:51,783 INFO L189 CegarLoopUtils]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,784 INFO L189 CegarLoopUtils]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,784 INFO L189 CegarLoopUtils]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,784 INFO L189 CegarLoopUtils]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-22 01:52:51,784 INFO L189 CegarLoopUtils]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-22 01:52:51,784 INFO L189 CegarLoopUtils]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-22 01:52:51,784 INFO L189 CegarLoopUtils]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-22 01:52:51,784 INFO L189 CegarLoopUtils]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-22 01:52:51,785 INFO L189 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-22 01:52:51,786 INFO L189 CegarLoopUtils]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-22 01:52:51,786 INFO L189 CegarLoopUtils]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-22 01:52:51,786 INFO L189 CegarLoopUtils]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-22 01:52:51,786 INFO L189 CegarLoopUtils]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-22 01:52:51,786 INFO L189 CegarLoopUtils]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-22 01:52:51,786 INFO L189 CegarLoopUtils]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-22 01:52:51,786 INFO L189 CegarLoopUtils]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-22 01:52:51,787 INFO L189 CegarLoopUtils]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-22 01:52:51,788 INFO L189 CegarLoopUtils]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-22 01:52:51,789 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-22 01:52:51,789 INFO L189 CegarLoopUtils]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-22 01:52:51,789 INFO L189 CegarLoopUtils]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-22 01:52:51,789 INFO L189 CegarLoopUtils]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-22 01:52:51,789 INFO L189 CegarLoopUtils]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-22 01:52:51,789 INFO L189 CegarLoopUtils]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,789 INFO L189 CegarLoopUtils]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,790 INFO L189 CegarLoopUtils]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,790 INFO L189 CegarLoopUtils]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-22 01:52:51,790 INFO L189 CegarLoopUtils]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-22 01:52:51,790 INFO L189 CegarLoopUtils]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-22 01:52:51,790 INFO L189 CegarLoopUtils]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-22 01:52:51,790 INFO L189 CegarLoopUtils]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-22 01:52:51,790 INFO L189 CegarLoopUtils]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-22 01:52:51,791 INFO L189 CegarLoopUtils]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-22 01:52:51,791 INFO L189 CegarLoopUtils]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-22 01:52:51,791 INFO L189 CegarLoopUtils]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,791 INFO L189 CegarLoopUtils]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,791 INFO L189 CegarLoopUtils]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,791 INFO L189 CegarLoopUtils]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-22 01:52:51,791 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-22 01:52:51,792 INFO L189 CegarLoopUtils]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-22 01:52:51,792 INFO L189 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-22 01:52:51,792 INFO L189 CegarLoopUtils]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-22 01:52:51,792 INFO L189 CegarLoopUtils]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-22 01:52:51,792 INFO L189 CegarLoopUtils]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-22 01:52:51,792 INFO L189 CegarLoopUtils]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-22 01:52:51,792 INFO L189 CegarLoopUtils]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-22 01:52:51,793 INFO L189 CegarLoopUtils]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,793 INFO L189 CegarLoopUtils]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,793 INFO L189 CegarLoopUtils]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,793 INFO L189 CegarLoopUtils]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-22 01:52:51,793 INFO L189 CegarLoopUtils]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-22 01:52:51,793 INFO L189 CegarLoopUtils]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-22 01:52:51,793 INFO L189 CegarLoopUtils]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-22 01:52:51,794 INFO L189 CegarLoopUtils]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-22 01:52:51,794 INFO L189 CegarLoopUtils]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-22 01:52:51,794 INFO L189 CegarLoopUtils]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-22 01:52:51,794 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 01:52:51,794 INFO L189 CegarLoopUtils]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,794 INFO L189 CegarLoopUtils]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,794 INFO L189 CegarLoopUtils]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-22 01:52:51,795 INFO L189 CegarLoopUtils]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-22 01:52:51,796 INFO L189 CegarLoopUtils]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-22 01:52:51,797 INFO L189 CegarLoopUtils]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-22 01:52:51,797 INFO L189 CegarLoopUtils]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-22 01:52:51,797 INFO L189 CegarLoopUtils]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-22 01:52:51,797 INFO L189 CegarLoopUtils]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-22 01:52:51,797 INFO L189 CegarLoopUtils]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,797 INFO L189 CegarLoopUtils]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,797 INFO L189 CegarLoopUtils]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,798 INFO L189 CegarLoopUtils]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-22 01:52:51,798 INFO L189 CegarLoopUtils]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-22 01:52:51,798 INFO L189 CegarLoopUtils]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-22 01:52:51,798 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 01:52:51,798 INFO L189 CegarLoopUtils]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-22 01:52:51,798 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-12-22 01:52:51,798 INFO L189 CegarLoopUtils]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-22 01:52:51,799 INFO L189 CegarLoopUtils]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-22 01:52:51,799 INFO L189 CegarLoopUtils]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-22 01:52:51,799 INFO L189 CegarLoopUtils]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-22 01:52:51,799 INFO L189 CegarLoopUtils]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,799 INFO L189 CegarLoopUtils]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,799 INFO L189 CegarLoopUtils]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,799 INFO L189 CegarLoopUtils]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-22 01:52:51,800 INFO L189 CegarLoopUtils]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-22 01:52:51,801 INFO L189 CegarLoopUtils]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-22 01:52:51,802 INFO L189 CegarLoopUtils]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-22 01:52:51,802 INFO L189 CegarLoopUtils]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-22 01:52:51,802 INFO L189 CegarLoopUtils]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,802 INFO L189 CegarLoopUtils]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,802 INFO L189 CegarLoopUtils]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,802 INFO L189 CegarLoopUtils]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-22 01:52:51,802 INFO L189 CegarLoopUtils]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-22 01:52:51,803 INFO L189 CegarLoopUtils]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-22 01:52:51,803 INFO L189 CegarLoopUtils]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-22 01:52:51,803 INFO L189 CegarLoopUtils]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-22 01:52:51,803 INFO L189 CegarLoopUtils]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-22 01:52:51,803 INFO L189 CegarLoopUtils]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-22 01:52:51,803 INFO L189 CegarLoopUtils]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-22 01:52:51,803 INFO L189 CegarLoopUtils]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-22 01:52:51,804 INFO L189 CegarLoopUtils]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-22 01:52:51,805 INFO L189 CegarLoopUtils]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-22 01:52:51,806 INFO L189 CegarLoopUtils]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-22 01:52:51,806 INFO L189 CegarLoopUtils]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-22 01:52:51,806 INFO L189 CegarLoopUtils]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-22 01:52:51,806 INFO L189 CegarLoopUtils]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-22 01:52:51,806 INFO L189 CegarLoopUtils]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-22 01:52:51,806 INFO L189 CegarLoopUtils]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,806 INFO L189 CegarLoopUtils]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,807 INFO L189 CegarLoopUtils]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-22 01:52:51,807 INFO L189 CegarLoopUtils]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-22 01:52:51,807 INFO L189 CegarLoopUtils]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-22 01:52:51,807 INFO L189 CegarLoopUtils]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-22 01:52:51,807 INFO L189 CegarLoopUtils]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-22 01:52:51,807 INFO L189 CegarLoopUtils]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-22 01:52:51,807 INFO L189 CegarLoopUtils]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-22 01:52:51,808 INFO L189 CegarLoopUtils]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-22 01:52:51,808 INFO L189 CegarLoopUtils]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,808 INFO L189 CegarLoopUtils]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,808 INFO L189 CegarLoopUtils]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-22 01:52:51,808 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 01:52:51,808 INFO L189 CegarLoopUtils]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-22 01:52:51,808 INFO L189 CegarLoopUtils]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-22 01:52:51,809 INFO L189 CegarLoopUtils]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-22 01:52:51,809 INFO L189 CegarLoopUtils]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-22 01:52:51,809 INFO L189 CegarLoopUtils]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-22 01:52:51,809 INFO L189 CegarLoopUtils]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,809 INFO L189 CegarLoopUtils]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,810 INFO L185 CegarLoopUtils]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a21~0 7) (<= ~a15~0 8)) (and .cse0 (<= 10 ~a21~0)) (and (<= (+ ~a12~0 49) 0) .cse0) (and .cse0 (< 11 ~a12~0)) (and (<= 6 ~a15~0) .cse0))) [2020-12-22 01:52:51,810 INFO L189 CegarLoopUtils]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-22 01:52:51,810 INFO L189 CegarLoopUtils]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-22 01:52:51,810 INFO L189 CegarLoopUtils]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-22 01:52:51,810 INFO L189 CegarLoopUtils]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-22 01:52:51,810 INFO L189 CegarLoopUtils]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-22 01:52:51,811 INFO L189 CegarLoopUtils]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-22 01:52:51,811 INFO L189 CegarLoopUtils]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-22 01:52:51,811 INFO L189 CegarLoopUtils]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-22 01:52:51,811 INFO L189 CegarLoopUtils]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,811 INFO L189 CegarLoopUtils]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,811 INFO L192 CegarLoopUtils]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-22 01:52:51,811 INFO L189 CegarLoopUtils]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-22 01:52:51,811 INFO L189 CegarLoopUtils]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-22 01:52:51,812 INFO L189 CegarLoopUtils]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-22 01:52:51,812 INFO L189 CegarLoopUtils]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-22 01:52:51,812 INFO L189 CegarLoopUtils]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-22 01:52:51,812 INFO L189 CegarLoopUtils]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-22 01:52:51,812 INFO L189 CegarLoopUtils]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-22 01:52:51,812 INFO L189 CegarLoopUtils]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,812 INFO L189 CegarLoopUtils]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,813 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 01:52:51,813 INFO L189 CegarLoopUtils]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-22 01:52:51,813 INFO L189 CegarLoopUtils]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-22 01:52:51,813 INFO L189 CegarLoopUtils]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-22 01:52:51,813 INFO L189 CegarLoopUtils]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-22 01:52:51,813 INFO L189 CegarLoopUtils]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-22 01:52:51,813 INFO L189 CegarLoopUtils]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-22 01:52:51,814 INFO L189 CegarLoopUtils]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,814 INFO L189 CegarLoopUtils]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,814 INFO L189 CegarLoopUtils]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-22 01:52:51,814 INFO L189 CegarLoopUtils]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,814 INFO L189 CegarLoopUtils]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-22 01:52:51,814 INFO L185 CegarLoopUtils]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a21~0 7) (<= ~a15~0 8)) (and .cse0 (<= 10 ~a21~0)) (and (<= (+ ~a12~0 49) 0) .cse0) (and .cse0 (< 11 ~a12~0)) (and (<= 6 ~a15~0) .cse0))) [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-22 01:52:51,815 INFO L189 CegarLoopUtils]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-22 01:52:51,816 INFO L189 CegarLoopUtils]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-22 01:52:51,816 INFO L189 CegarLoopUtils]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,816 INFO L189 CegarLoopUtils]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,816 INFO L189 CegarLoopUtils]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:52:51,816 INFO L189 CegarLoopUtils]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-22 01:52:51,816 INFO L189 CegarLoopUtils]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-22 01:52:51,816 INFO L189 CegarLoopUtils]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-22 01:52:51,817 INFO L189 CegarLoopUtils]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-22 01:52:51,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:52:51 BoogieIcfgContainer [2020-12-22 01:52:51,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 01:52:51,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 01:52:51,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 01:52:51,839 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 01:52:51,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:52:28" (3/4) ... [2020-12-22 01:52:51,844 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 01:52:51,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 01:52:51,872 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 01:52:51,874 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:52:51,876 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:52:52,050 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem14_label07.c-witness.graphml [2020-12-22 01:52:52,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 01:52:52,052 INFO L168 Benchmark]: Toolchain (without parser) took 26175.62 ms. Allocated memory was 164.6 MB in the beginning and 960.5 MB in the end (delta: 795.9 MB). Free memory was 137.8 MB in the beginning and 880.4 MB in the end (delta: -742.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. [2020-12-22 01:52:52,052 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 164.6 MB. Free memory was 137.5 MB in the beginning and 137.4 MB in the end (delta: 82.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 01:52:52,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 831.91 ms. Allocated memory is still 164.6 MB. Free memory was 137.6 MB in the beginning and 137.6 MB in the end (delta: 46.2 kB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2020-12-22 01:52:52,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.16 ms. Allocated memory is still 164.6 MB. Free memory was 137.6 MB in the beginning and 127.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 01:52:52,053 INFO L168 Benchmark]: Boogie Preprocessor took 119.27 ms. Allocated memory is still 164.6 MB. Free memory was 127.6 MB in the beginning and 121.7 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 01:52:52,054 INFO L168 Benchmark]: RCFGBuilder took 1724.47 ms. Allocated memory is still 164.6 MB. Free memory was 121.2 MB in the beginning and 83.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 76.5 MB. Max. memory is 8.0 GB. [2020-12-22 01:52:52,054 INFO L168 Benchmark]: TraceAbstraction took 23165.03 ms. Allocated memory was 164.6 MB in the beginning and 960.5 MB in the end (delta: 795.9 MB). Free memory was 83.6 MB in the beginning and 900.0 MB in the end (delta: -816.5 MB). Peak memory consumption was 414.6 MB. Max. memory is 8.0 GB. [2020-12-22 01:52:52,055 INFO L168 Benchmark]: Witness Printer took 211.55 ms. Allocated memory is still 960.5 MB. Free memory was 899.5 MB in the beginning and 880.4 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-12-22 01:52:52,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 164.6 MB. Free memory was 137.5 MB in the beginning and 137.4 MB in the end (delta: 82.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 831.91 ms. Allocated memory is still 164.6 MB. Free memory was 137.6 MB in the beginning and 137.6 MB in the end (delta: 46.2 kB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 113.16 ms. Allocated memory is still 164.6 MB. Free memory was 137.6 MB in the beginning and 127.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.27 ms. Allocated memory is still 164.6 MB. Free memory was 127.6 MB in the beginning and 121.7 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1724.47 ms. Allocated memory is still 164.6 MB. Free memory was 121.2 MB in the beginning and 83.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 76.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23165.03 ms. Allocated memory was 164.6 MB in the beginning and 960.5 MB in the end (delta: 795.9 MB). Free memory was 83.6 MB in the beginning and 900.0 MB in the end (delta: -816.5 MB). Peak memory consumption was 414.6 MB. Max. memory is 8.0 GB. * Witness Printer took 211.55 ms. Allocated memory is still 960.5 MB. Free memory was 899.5 MB in the beginning and 880.4 MB in the end (delta: 19.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((a21 <= 7 && a15 <= 8) || (a24 == 1 && 10 <= a21)) || (a12 + 49 <= 0 && a24 == 1)) || (a24 == 1 && 11 < a12)) || (6 <= a15 && a24 == 1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a21 <= 7 && a15 <= 8) || (a24 == 1 && 10 <= a21)) || (a12 + 49 <= 0 && a24 == 1)) || (a24 == 1 && 11 < a12)) || (6 <= a15 && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.7s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1328 SDtfs, 1771 SDslu, 67 SDs, 0 SdLazy, 6365 SolverSat, 1093 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2092 GetRequests, 2061 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3208occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1958 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 77 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1738 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 314 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 6246 NumberOfCodeBlocks, 6246 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6230 ConstructedInterpolants, 0 QuantifiedInterpolants, 9649463 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2699 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 9119/9834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...