/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/Problem01_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:28:18,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:28:18,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:28:19,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-21 23:28:19,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:28:19,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:28:19,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:28:19,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:28:19,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:28:19,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:28:19,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:28:19,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:28:19,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:28:19,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:28:19,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:28:19,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:28:19,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 23:28:19,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:28:19,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:28:19,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:28:19,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:28:19,124 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:28:19,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:28:19,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:28:19,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:28:19,127 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:28:19,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:28:19,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:28:19,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:28:19,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:28:19,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:28:19,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:28:19,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:28:19,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:28:19,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:28:19,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:28:19,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:28:19,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:28:19,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:28:19,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:28:19,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:28:19,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:28:19,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:28:19,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:28:19,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:28:19,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:28:19,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:28:19,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:28:19,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:28:19,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:28:19,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:28:19,545 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:28:19,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2020-12-21 23:28:19,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c430063/414df3600d5f4cebbbe2ccd43412d23a/FLAG8f5105547 [2020-12-21 23:28:20,522 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:28:20,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2020-12-21 23:28:20,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c430063/414df3600d5f4cebbbe2ccd43412d23a/FLAG8f5105547 [2020-12-21 23:28:20,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07c430063/414df3600d5f4cebbbe2ccd43412d23a [2020-12-21 23:28:20,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:28:20,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:28:20,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:28:20,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:28:20,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:28:20,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:28:20" (1/1) ... [2020-12-21 23:28:20,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b1f55e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:20, skipping insertion in model container [2020-12-21 23:28:20,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:28:20" (1/1) ... [2020-12-21 23:28:20,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:28:20,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:28:21,198 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/Problem01_label48.c[20593,20606] [2020-12-21 23:28:21,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:28:21,255 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:28:21,398 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/Problem01_label48.c[20593,20606] [2020-12-21 23:28:21,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:28:21,461 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:28:21,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21 WrapperNode [2020-12-21 23:28:21,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:28:21,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:28:21,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:28:21,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:28:21,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:28:21,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:28:21,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:28:21,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:28:21,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (1/1) ... [2020-12-21 23:28:21,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:28:21,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:28:21,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:28:21,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:28:21,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (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 [2020-12-21 23:28:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:28:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:28:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:28:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:28:23,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:28:23,385 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-21 23:28:23,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:28:23 BoogieIcfgContainer [2020-12-21 23:28:23,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:28:23,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:28:23,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:28:23,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:28:23,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:28:20" (1/3) ... [2020-12-21 23:28:23,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6938ec7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:28:23, skipping insertion in model container [2020-12-21 23:28:23,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:28:21" (2/3) ... [2020-12-21 23:28:23,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6938ec7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:28:23, skipping insertion in model container [2020-12-21 23:28:23,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:28:23" (3/3) ... [2020-12-21 23:28:23,397 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label48.c [2020-12-21 23:28:23,405 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:28:23,415 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:28:23,435 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:28:23,471 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:28:23,472 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:28:23,472 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:28:23,472 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:28:23,472 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:28:23,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:28:23,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:28:23,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:28:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-12-21 23:28:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-21 23:28:23,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:23,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:23,510 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:23,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:23,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1763883850, now seen corresponding path program 1 times [2020-12-21 23:28:23,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:23,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620323070] [2020-12-21 23:28:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:24,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620323070] [2020-12-21 23:28:24,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:24,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:28:24,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769797928] [2020-12-21 23:28:24,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:24,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:24,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:24,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:24,097 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-12-21 23:28:25,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:25,103 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2020-12-21 23:28:25,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:25,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-12-21 23:28:25,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:25,128 INFO L225 Difference]: With dead ends: 528 [2020-12-21 23:28:25,128 INFO L226 Difference]: Without dead ends: 266 [2020-12-21 23:28:25,133 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 [2020-12-21 23:28:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-21 23:28:25,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-21 23:28:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-21 23:28:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2020-12-21 23:28:25,202 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 121 [2020-12-21 23:28:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:25,203 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2020-12-21 23:28:25,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2020-12-21 23:28:25,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-21 23:28:25,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:25,210 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:25,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:28:25,210 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:25,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:25,211 INFO L82 PathProgramCache]: Analyzing trace with hash 982355587, now seen corresponding path program 1 times [2020-12-21 23:28:25,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:25,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848235024] [2020-12-21 23:28:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:25,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848235024] [2020-12-21 23:28:25,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:25,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-21 23:28:25,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557015867] [2020-12-21 23:28:25,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:25,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:25,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:25,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:25,397 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 3 states. [2020-12-21 23:28:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:26,011 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2020-12-21 23:28:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:26,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-12-21 23:28:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:26,021 INFO L225 Difference]: With dead ends: 792 [2020-12-21 23:28:26,022 INFO L226 Difference]: Without dead ends: 528 [2020-12-21 23:28:26,030 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 [2020-12-21 23:28:26,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-12-21 23:28:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-12-21 23:28:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-12-21 23:28:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2020-12-21 23:28:26,078 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 127 [2020-12-21 23:28:26,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:26,079 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2020-12-21 23:28:26,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2020-12-21 23:28:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-21 23:28:26,084 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:26,085 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:26,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 23:28:26,085 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:26,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:26,086 INFO L82 PathProgramCache]: Analyzing trace with hash -569986173, now seen corresponding path program 1 times [2020-12-21 23:28:26,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:26,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213426338] [2020-12-21 23:28:26,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:26,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213426338] [2020-12-21 23:28:26,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:26,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:28:26,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278333680] [2020-12-21 23:28:26,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:28:26,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:26,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:28:26,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:28:26,454 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand 4 states. [2020-12-21 23:28:27,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:27,364 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2020-12-21 23:28:27,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:28:27,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-12-21 23:28:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:27,374 INFO L225 Difference]: With dead ends: 1411 [2020-12-21 23:28:27,375 INFO L226 Difference]: Without dead ends: 790 [2020-12-21 23:28:27,376 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 [2020-12-21 23:28:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2020-12-21 23:28:27,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2020-12-21 23:28:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-12-21 23:28:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2020-12-21 23:28:27,428 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 128 [2020-12-21 23:28:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:27,435 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2020-12-21 23:28:27,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:28:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2020-12-21 23:28:27,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-21 23:28:27,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:27,446 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:27,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 23:28:27,446 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:27,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:27,447 INFO L82 PathProgramCache]: Analyzing trace with hash -866278320, now seen corresponding path program 1 times [2020-12-21 23:28:27,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:27,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108835981] [2020-12-21 23:28:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:27,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108835981] [2020-12-21 23:28:27,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350953899] [2020-12-21 23:28:27,584 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 [2020-12-21 23:28:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:27,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:28:27,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:28:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-21 23:28:28,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:28:28,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:28:28,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372763555] [2020-12-21 23:28:28,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:28,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:28,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:28,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:28,007 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand 3 states. [2020-12-21 23:28:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:28,568 INFO L93 Difference]: Finished difference Result 2102 states and 2481 transitions. [2020-12-21 23:28:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:28,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-12-21 23:28:28,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:28,577 INFO L225 Difference]: With dead ends: 2102 [2020-12-21 23:28:28,577 INFO L226 Difference]: Without dead ends: 1314 [2020-12-21 23:28:28,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:28,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-12-21 23:28:28,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2020-12-21 23:28:28,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2020-12-21 23:28:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1506 transitions. [2020-12-21 23:28:28,618 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1506 transitions. Word has length 133 [2020-12-21 23:28:28,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:28,618 INFO L481 AbstractCegarLoop]: Abstraction has 1314 states and 1506 transitions. [2020-12-21 23:28:28,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1506 transitions. [2020-12-21 23:28:28,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-12-21 23:28:28,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:28,625 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:28,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:28,839 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:28,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:28,840 INFO L82 PathProgramCache]: Analyzing trace with hash -927783675, now seen corresponding path program 1 times [2020-12-21 23:28:28,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:28,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142340363] [2020-12-21 23:28:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:28:28,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142340363] [2020-12-21 23:28:28,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:28,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:28:28,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499945151] [2020-12-21 23:28:28,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:28:28,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:28,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:28:28,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:28:28,946 INFO L87 Difference]: Start difference. First operand 1314 states and 1506 transitions. Second operand 4 states. [2020-12-21 23:28:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:29,909 INFO L93 Difference]: Finished difference Result 3150 states and 3649 transitions. [2020-12-21 23:28:29,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:28:29,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 136 [2020-12-21 23:28:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:29,924 INFO L225 Difference]: With dead ends: 3150 [2020-12-21 23:28:29,925 INFO L226 Difference]: Without dead ends: 1969 [2020-12-21 23:28:29,927 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 [2020-12-21 23:28:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-12-21 23:28:29,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2020-12-21 23:28:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2020-12-21 23:28:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2096 transitions. [2020-12-21 23:28:30,003 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2096 transitions. Word has length 136 [2020-12-21 23:28:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:30,003 INFO L481 AbstractCegarLoop]: Abstraction has 1838 states and 2096 transitions. [2020-12-21 23:28:30,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:28:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2096 transitions. [2020-12-21 23:28:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-12-21 23:28:30,008 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:30,008 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:30,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-21 23:28:30,009 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:30,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:30,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2001772573, now seen corresponding path program 1 times [2020-12-21 23:28:30,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:30,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802617221] [2020-12-21 23:28:30,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-21 23:28:30,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802617221] [2020-12-21 23:28:30,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:28:30,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:28:30,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902465635] [2020-12-21 23:28:30,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:30,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:30,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:30,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:28:30,079 INFO L87 Difference]: Start difference. First operand 1838 states and 2096 transitions. Second operand 3 states. [2020-12-21 23:28:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:30,623 INFO L93 Difference]: Finished difference Result 4067 states and 4663 transitions. [2020-12-21 23:28:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:30,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-12-21 23:28:30,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:30,635 INFO L225 Difference]: With dead ends: 4067 [2020-12-21 23:28:30,636 INFO L226 Difference]: Without dead ends: 2362 [2020-12-21 23:28:30,639 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 [2020-12-21 23:28:30,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-12-21 23:28:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2020-12-21 23:28:30,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2100 states. [2020-12-21 23:28:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2394 transitions. [2020-12-21 23:28:30,696 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2394 transitions. Word has length 145 [2020-12-21 23:28:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:30,696 INFO L481 AbstractCegarLoop]: Abstraction has 2100 states and 2394 transitions. [2020-12-21 23:28:30,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:30,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2394 transitions. [2020-12-21 23:28:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-12-21 23:28:30,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:30,702 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:30,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-21 23:28:30,702 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:30,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:30,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1332873836, now seen corresponding path program 1 times [2020-12-21 23:28:30,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:30,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654196484] [2020-12-21 23:28:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-21 23:28:30,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654196484] [2020-12-21 23:28:30,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496938803] [2020-12-21 23:28:30,830 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 [2020-12-21 23:28:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:30,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:28:30,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:28:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-21 23:28:31,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:28:31,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:28:31,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459421555] [2020-12-21 23:28:31,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:31,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:31,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:31,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:31,109 INFO L87 Difference]: Start difference. First operand 2100 states and 2394 transitions. Second operand 3 states. [2020-12-21 23:28:31,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:31,682 INFO L93 Difference]: Finished difference Result 4460 states and 5122 transitions. [2020-12-21 23:28:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:31,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-12-21 23:28:31,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:31,694 INFO L225 Difference]: With dead ends: 4460 [2020-12-21 23:28:31,695 INFO L226 Difference]: Without dead ends: 2362 [2020-12-21 23:28:31,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:31,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2020-12-21 23:28:31,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1969. [2020-12-21 23:28:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-12-21 23:28:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2244 transitions. [2020-12-21 23:28:31,755 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2244 transitions. Word has length 151 [2020-12-21 23:28:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:31,757 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2244 transitions. [2020-12-21 23:28:31,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2244 transitions. [2020-12-21 23:28:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-12-21 23:28:31,763 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:28:31,763 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:28:31,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:31,977 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:28:31,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:28:31,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1864371352, now seen corresponding path program 1 times [2020-12-21 23:28:31,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:28:31,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645898622] [2020-12-21 23:28:31,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:28:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-21 23:28:32,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645898622] [2020-12-21 23:28:32,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265192291] [2020-12-21 23:28:32,080 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 [2020-12-21 23:28:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:28:32,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-21 23:28:32,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:28:32,488 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-21 23:28:32,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-21 23:28:32,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-21 23:28:32,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613873052] [2020-12-21 23:28:32,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:28:32,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:28:32,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:28:32,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:32,492 INFO L87 Difference]: Start difference. First operand 1969 states and 2244 transitions. Second operand 3 states. [2020-12-21 23:28:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:28:33,064 INFO L93 Difference]: Finished difference Result 4065 states and 4650 transitions. [2020-12-21 23:28:33,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:28:33,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-12-21 23:28:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:28:33,065 INFO L225 Difference]: With dead ends: 4065 [2020-12-21 23:28:33,065 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:28:33,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:28:33,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:28:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:28:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:28:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:28:33,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-12-21 23:28:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:28:33,072 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:28:33,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:28:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:28:33,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:28:33,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:28:33,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:28:33,502 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-12-21 23:28:33,614 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-12-21 23:28:33,618 INFO L189 CegarLoopUtils]: For program point L564(line 564) no Hoare annotation was computed. [2020-12-21 23:28:33,618 INFO L189 CegarLoopUtils]: For program point L531(line 531) no Hoare annotation was computed. [2020-12-21 23:28:33,618 INFO L189 CegarLoopUtils]: For program point L498(line 498) no Hoare annotation was computed. [2020-12-21 23:28:33,618 INFO L189 CegarLoopUtils]: For program point L465(line 465) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L432(line 432) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L102(lines 102 400) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L598(line 598) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L334(lines 334 400) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,619 INFO L189 CegarLoopUtils]: For program point L401(lines 401 403) no Hoare annotation was computed. [2020-12-21 23:28:33,620 INFO L189 CegarLoopUtils]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,621 INFO L189 CegarLoopUtils]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,621 INFO L189 CegarLoopUtils]: For program point L302(lines 302 400) no Hoare annotation was computed. [2020-12-21 23:28:33,621 INFO L189 CegarLoopUtils]: For program point L170(lines 170 400) no Hoare annotation was computed. [2020-12-21 23:28:33,621 INFO L189 CegarLoopUtils]: For program point L567(line 567) no Hoare annotation was computed. [2020-12-21 23:28:33,622 INFO L189 CegarLoopUtils]: For program point L534(line 534) no Hoare annotation was computed. [2020-12-21 23:28:33,622 INFO L189 CegarLoopUtils]: For program point L501(line 501) no Hoare annotation was computed. [2020-12-21 23:28:33,622 INFO L189 CegarLoopUtils]: For program point L468(line 468) no Hoare annotation was computed. [2020-12-21 23:28:33,622 INFO L189 CegarLoopUtils]: For program point L435(line 435) no Hoare annotation was computed. [2020-12-21 23:28:33,622 INFO L189 CegarLoopUtils]: For program point L402(line 402) no Hoare annotation was computed. [2020-12-21 23:28:33,622 INFO L189 CegarLoopUtils]: For program point L204(lines 204 400) no Hoare annotation was computed. [2020-12-21 23:28:33,622 INFO L189 CegarLoopUtils]: For program point L72(lines 72 400) no Hoare annotation was computed. [2020-12-21 23:28:33,623 INFO L189 CegarLoopUtils]: For program point L271(lines 271 400) no Hoare annotation was computed. [2020-12-21 23:28:33,624 INFO L189 CegarLoopUtils]: For program point L139(lines 139 400) no Hoare annotation was computed. [2020-12-21 23:28:33,624 INFO L189 CegarLoopUtils]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,624 INFO L189 CegarLoopUtils]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,624 INFO L189 CegarLoopUtils]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L371(lines 371 400) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L107(lines 107 400) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L41(lines 41 400) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L570(line 570) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L537(line 537) no Hoare annotation was computed. [2020-12-21 23:28:33,625 INFO L189 CegarLoopUtils]: For program point L504(line 504) no Hoare annotation was computed. [2020-12-21 23:28:33,626 INFO L189 CegarLoopUtils]: For program point L471(line 471) no Hoare annotation was computed. [2020-12-21 23:28:33,626 INFO L189 CegarLoopUtils]: For program point L438(line 438) no Hoare annotation was computed. [2020-12-21 23:28:33,626 INFO L189 CegarLoopUtils]: For program point L405(line 405) no Hoare annotation was computed. [2020-12-21 23:28:33,627 INFO L189 CegarLoopUtils]: For program point L339(lines 339 400) no Hoare annotation was computed. [2020-12-21 23:28:33,627 INFO L189 CegarLoopUtils]: For program point L207(lines 207 400) no Hoare annotation was computed. [2020-12-21 23:28:33,627 INFO L189 CegarLoopUtils]: For program point L75(lines 75 400) no Hoare annotation was computed. [2020-12-21 23:28:33,627 INFO L189 CegarLoopUtils]: For program point L373(lines 373 400) no Hoare annotation was computed. [2020-12-21 23:28:33,627 INFO L189 CegarLoopUtils]: For program point L241(lines 241 400) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L175(lines 175 400) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L275(lines 275 400) no Hoare annotation was computed. [2020-12-21 23:28:33,628 INFO L189 CegarLoopUtils]: For program point L573(line 573) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L540(line 540) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L507(line 507) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L474(line 474) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L441(line 441) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L408(line 408) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L375(lines 375 400) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L309(lines 309 400) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L45(lines 45 400) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L343(lines 343 400) no Hoare annotation was computed. [2020-12-21 23:28:33,629 INFO L189 CegarLoopUtils]: For program point L112(lines 112 400) no Hoare annotation was computed. [2020-12-21 23:28:33,630 INFO L189 CegarLoopUtils]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,630 INFO L189 CegarLoopUtils]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,630 INFO L189 CegarLoopUtils]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,630 INFO L189 CegarLoopUtils]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,630 INFO L189 CegarLoopUtils]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L278(lines 278 400) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L146(lines 146 400) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L576(line 576) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L543(line 543) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L510(line 510) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L477(line 477) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L444(line 444) no Hoare annotation was computed. [2020-12-21 23:28:33,631 INFO L189 CegarLoopUtils]: For program point L411(line 411) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L213(lines 213 400) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L82(lines 82 400) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,632 INFO L189 CegarLoopUtils]: For program point L347(lines 347 400) no Hoare annotation was computed. [2020-12-21 23:28:33,633 INFO L189 CegarLoopUtils]: For program point L248(lines 248 400) no Hoare annotation was computed. [2020-12-21 23:28:33,634 INFO L189 CegarLoopUtils]: For program point L579(line 579) no Hoare annotation was computed. [2020-12-21 23:28:33,634 INFO L189 CegarLoopUtils]: For program point L546(line 546) no Hoare annotation was computed. [2020-12-21 23:28:33,634 INFO L189 CegarLoopUtils]: For program point L513(line 513) no Hoare annotation was computed. [2020-12-21 23:28:33,634 INFO L189 CegarLoopUtils]: For program point L480(line 480) no Hoare annotation was computed. [2020-12-21 23:28:33,634 INFO L189 CegarLoopUtils]: For program point L447(line 447) no Hoare annotation was computed. [2020-12-21 23:28:33,634 INFO L189 CegarLoopUtils]: For program point L414(line 414) no Hoare annotation was computed. [2020-12-21 23:28:33,634 INFO L189 CegarLoopUtils]: For program point L183(lines 183 400) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L150(lines 150 400) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L382(lines 382 400) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L316(lines 316 400) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L283(lines 283 400) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L118(lines 118 400) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,635 INFO L189 CegarLoopUtils]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point L218(lines 218 400) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point L53(lines 53 400) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point L582(line 582) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point L549(line 549) no Hoare annotation was computed. [2020-12-21 23:28:33,636 INFO L189 CegarLoopUtils]: For program point L516(line 516) no Hoare annotation was computed. [2020-12-21 23:28:33,637 INFO L189 CegarLoopUtils]: For program point L483(line 483) no Hoare annotation was computed. [2020-12-21 23:28:33,637 INFO L189 CegarLoopUtils]: For program point L450(line 450) no Hoare annotation was computed. [2020-12-21 23:28:33,637 INFO L189 CegarLoopUtils]: For program point L417(line 417) no Hoare annotation was computed. [2020-12-21 23:28:33,637 INFO L189 CegarLoopUtils]: For program point L154(lines 154 400) no Hoare annotation was computed. [2020-12-21 23:28:33,639 INFO L185 CegarLoopUtils]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= ~a16~0 4)) (.cse1 (= ~a20~0 1)) (.cse4 (<= ~a8~0 13)) (.cse3 (<= ~a17~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse2 (= ~a17~0 1))) (or (and (= ~a21~0 1) .cse0 (= ~a12~0 8) .cse1 .cse2) (and .cse3 .cse1) (and .cse0 .cse4) (and (<= ~a16~0 5) .cse3) (and .cse1 .cse4) (and .cse3 .cse5) (and (not (= ~a7~0 1)) .cse5 .cse2))) [2020-12-21 23:28:33,639 INFO L189 CegarLoopUtils]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,639 INFO L189 CegarLoopUtils]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,639 INFO L189 CegarLoopUtils]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,639 INFO L189 CegarLoopUtils]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L188(lines 188 400) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L552(line 552) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L519(line 519) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L486(line 486) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L453(line 453) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L420(line 420) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L387(lines 387 400) no Hoare annotation was computed. [2020-12-21 23:28:33,640 INFO L189 CegarLoopUtils]: For program point L288(lines 288 400) no Hoare annotation was computed. [2020-12-21 23:28:33,641 INFO L189 CegarLoopUtils]: For program point L255(lines 255 400) no Hoare annotation was computed. [2020-12-21 23:28:33,641 INFO L189 CegarLoopUtils]: For program point L90(lines 90 400) no Hoare annotation was computed. [2020-12-21 23:28:33,641 INFO L189 CegarLoopUtils]: For program point L355(lines 355 400) no Hoare annotation was computed. [2020-12-21 23:28:33,641 INFO L189 CegarLoopUtils]: For program point L322(lines 322 400) no Hoare annotation was computed. [2020-12-21 23:28:33,641 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:28:33,641 INFO L189 CegarLoopUtils]: For program point L124(lines 124 400) no Hoare annotation was computed. [2020-12-21 23:28:33,641 INFO L192 CegarLoopUtils]: At program point L587(lines 587 604) the Hoare annotation is: true [2020-12-21 23:28:33,641 INFO L189 CegarLoopUtils]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L224(lines 224 400) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L158(lines 158 400) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L59(lines 59 400) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L555(line 555) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L522(line 522) no Hoare annotation was computed. [2020-12-21 23:28:33,642 INFO L189 CegarLoopUtils]: For program point L489(line 489) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L456(line 456) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L423(line 423) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L94(lines 94 400) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L392(lines 392 400) no Hoare annotation was computed. [2020-12-21 23:28:33,643 INFO L189 CegarLoopUtils]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L326(lines 326 400) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L260(lines 260 400) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L558(line 558) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L525(line 525) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L492(line 492) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L459(line 459) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L426(line 426) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L228(lines 228 400) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L162(lines 162 400) no Hoare annotation was computed. [2020-12-21 23:28:33,644 INFO L189 CegarLoopUtils]: For program point L129(lines 129 400) no Hoare annotation was computed. [2020-12-21 23:28:33,645 INFO L189 CegarLoopUtils]: For program point L328(lines 328 400) no Hoare annotation was computed. [2020-12-21 23:28:33,645 INFO L189 CegarLoopUtils]: For program point L196(lines 196 400) no Hoare annotation was computed. [2020-12-21 23:28:33,645 INFO L189 CegarLoopUtils]: For program point L64(lines 64 400) no Hoare annotation was computed. [2020-12-21 23:28:33,645 INFO L189 CegarLoopUtils]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,645 INFO L185 CegarLoopUtils]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= ~a16~0 4)) (.cse1 (= ~a20~0 1)) (.cse4 (<= ~a8~0 13)) (.cse3 (<= ~a17~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse2 (= ~a17~0 1))) (or (and (= ~a21~0 1) .cse0 (= ~a12~0 8) .cse1 .cse2) (and .cse3 .cse1) (and .cse0 .cse4) (and (<= ~a16~0 5) .cse3) (and .cse1 .cse4) (and .cse3 .cse5) (and (not (= ~a7~0 1)) .cse5 .cse2))) [2020-12-21 23:28:33,645 INFO L189 CegarLoopUtils]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,645 INFO L189 CegarLoopUtils]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L296(lines 296 400) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 549) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L561(line 561) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L528(line 528) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L495(line 495) no Hoare annotation was computed. [2020-12-21 23:28:33,646 INFO L189 CegarLoopUtils]: For program point L462(line 462) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L429(line 429) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L363(lines 363 400) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L199(lines 199 400) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2020-12-21 23:28:33,647 INFO L189 CegarLoopUtils]: For program point L365(lines 365 400) no Hoare annotation was computed. [2020-12-21 23:28:33,648 INFO L189 CegarLoopUtils]: For program point L266(lines 266 400) no Hoare annotation was computed. [2020-12-21 23:28:33,648 INFO L189 CegarLoopUtils]: For program point L233(lines 233 400) no Hoare annotation was computed. [2020-12-21 23:28:33,648 INFO L189 CegarLoopUtils]: For program point L134(lines 134 400) no Hoare annotation was computed. [2020-12-21 23:28:33,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:28:33 BoogieIcfgContainer [2020-12-21 23:28:33,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:28:33,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:28:33,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:28:33,690 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:28:33,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:28:23" (3/4) ... [2020-12-21 23:28:33,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:28:33,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-21 23:28:33,729 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:28:33,730 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:28:33,731 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:28:33,908 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem01_label48.c-witness.graphml [2020-12-21 23:28:33,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:28:33,909 INFO L168 Benchmark]: Toolchain (without parser) took 13162.42 ms. Allocated memory was 160.4 MB in the beginning and 298.8 MB in the end (delta: 138.4 MB). Free memory was 133.2 MB in the beginning and 99.0 MB in the end (delta: 34.2 MB). Peak memory consumption was 173.6 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:33,910 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 160.4 MB. Free memory is still 133.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:28:33,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.51 ms. Allocated memory is still 160.4 MB. Free memory was 133.0 MB in the beginning and 140.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:33,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.39 ms. Allocated memory is still 160.4 MB. Free memory was 140.1 MB in the beginning and 134.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:33,911 INFO L168 Benchmark]: Boogie Preprocessor took 108.01 ms. Allocated memory is still 160.4 MB. Free memory was 134.3 MB in the beginning and 130.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:33,914 INFO L168 Benchmark]: RCFGBuilder took 1708.96 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 129.6 MB in the beginning and 143.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:33,915 INFO L168 Benchmark]: TraceAbstraction took 10299.54 ms. Allocated memory was 192.9 MB in the beginning and 298.8 MB in the end (delta: 105.9 MB). Free memory was 142.7 MB in the beginning and 113.9 MB in the end (delta: 28.9 MB). Peak memory consumption was 134.8 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:33,915 INFO L168 Benchmark]: Witness Printer took 218.77 ms. Allocated memory is still 298.8 MB. Free memory was 113.9 MB in the beginning and 99.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-21 23:28:33,917 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 160.4 MB. Free memory is still 133.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 713.51 ms. Allocated memory is still 160.4 MB. Free memory was 133.0 MB in the beginning and 140.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 101.39 ms. Allocated memory is still 160.4 MB. Free memory was 140.1 MB in the beginning and 134.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 108.01 ms. Allocated memory is still 160.4 MB. Free memory was 134.3 MB in the beginning and 130.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1708.96 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 129.6 MB in the beginning and 143.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10299.54 ms. Allocated memory was 192.9 MB in the beginning and 298.8 MB in the end (delta: 105.9 MB). Free memory was 142.7 MB in the beginning and 113.9 MB in the end (delta: 28.9 MB). Peak memory consumption was 134.8 MB. Max. memory is 8.0 GB. * Witness Printer took 218.77 ms. Allocated memory is still 298.8 MB. Free memory was 113.9 MB in the beginning and 99.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 549]: 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: 40]: Loop Invariant Derived loop invariant: (((((((((a21 == 1 && a16 <= 4) && a12 == 8) && a20 == 1) && a17 == 1) || (a17 <= 0 && a20 == 1)) || (a16 <= 4 && a8 <= 13)) || (a16 <= 5 && a17 <= 0)) || (a20 == 1 && a8 <= 13)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((a21 == 1 && a16 <= 4) && a12 == 8) && a20 == 1) && a17 == 1) || (a17 <= 0 && a20 == 1)) || (a16 <= 4 && a8 <= 13)) || (a16 <= 5 && a17 <= 0)) || (a20 == 1 && a8 <= 13)) || (a17 <= 0 && 15 <= a8)) || ((!(a7 == 1) && 15 <= a8) && a17 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.8s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 735 SDtfs, 899 SDslu, 51 SDs, 0 SdLazy, 2971 SolverSat, 487 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 786 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 45 NumberOfFragments, 127 HoareAnnotationTreeSize, 3 FomulaSimplifications, 622 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 50 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1565 NumberOfCodeBlocks, 1565 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1554 ConstructedInterpolants, 0 QuantifiedInterpolants, 684453 SizeOfPredicates, 0 NumberOfNonLiveVariables, 943 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 315/324 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...