/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/eca-rers2012/Problem14_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 01:57:04,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 01:57:04,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 01:57:04,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 01:57:04,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 01:57:04,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 01:57:04,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 01:57:04,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 01:57:04,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 01:57:04,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 01:57:04,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 01:57:04,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 01:57:04,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 01:57:04,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 01:57:04,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 01:57:04,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 01:57:04,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 01:57:04,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 01:57:04,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 01:57:04,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 01:57:04,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 01:57:04,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 01:57:04,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 01:57:04,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 01:57:04,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 01:57:04,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 01:57:04,693 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 01:57:04,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 01:57:04,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 01:57:04,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 01:57:04,698 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 01:57:04,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 01:57:04,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 01:57:04,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 01:57:04,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 01:57:04,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 01:57:04,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 01:57:04,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 01:57:04,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 01:57:04,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 01:57:04,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 01:57:04,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 01:57:04,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 01:57:04,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:57:04,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 01:57:04,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 01:57:04,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 01:57:04,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 01:57:04,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 01:57:04,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 01:57:04,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 01:57:04,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 01:57:05,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 01:57:05,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 01:57:05,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 01:57:05,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 01:57:05,182 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 01:57:05,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2020-12-22 01:57:05,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dcfa03a7/ef210432a0ef4af2919cd638adca443d/FLAGff5f38edc [2020-12-22 01:57:06,094 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 01:57:06,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label50.c [2020-12-22 01:57:06,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dcfa03a7/ef210432a0ef4af2919cd638adca443d/FLAGff5f38edc [2020-12-22 01:57:06,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dcfa03a7/ef210432a0ef4af2919cd638adca443d [2020-12-22 01:57:06,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 01:57:06,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 01:57:06,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 01:57:06,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 01:57:06,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 01:57:06,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:57:06" (1/1) ... [2020-12-22 01:57:06,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34effc84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:06, skipping insertion in model container [2020-12-22 01:57:06,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:57:06" (1/1) ... [2020-12-22 01:57:06,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 01:57:06,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 01:57:06,640 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label50.c[3933,3946] [2020-12-22 01:57:06,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:57:06,976 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 01:57:07,026 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label50.c[3933,3946] [2020-12-22 01:57:07,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 01:57:07,223 INFO L208 MainTranslator]: Completed translation [2020-12-22 01:57:07,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07 WrapperNode [2020-12-22 01:57:07,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 01:57:07,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 01:57:07,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 01:57:07,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 01:57:07,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 01:57:07,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 01:57:07,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 01:57:07,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 01:57:07,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... [2020-12-22 01:57:07,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 01:57:07,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 01:57:07,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 01:57:07,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 01:57:07,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 01:57:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 01:57:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 01:57:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 01:57:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 01:57:09,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 01:57:09,595 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 01:57:09,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:57:09 BoogieIcfgContainer [2020-12-22 01:57:09,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 01:57:09,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 01:57:09,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 01:57:09,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 01:57:09,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:57:06" (1/3) ... [2020-12-22 01:57:09,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32668d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:57:09, skipping insertion in model container [2020-12-22 01:57:09,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:57:07" (2/3) ... [2020-12-22 01:57:09,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32668d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:57:09, skipping insertion in model container [2020-12-22 01:57:09,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:57:09" (3/3) ... [2020-12-22 01:57:09,607 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2020-12-22 01:57:09,614 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 01:57:09,620 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 01:57:09,641 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 01:57:09,671 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 01:57:09,671 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 01:57:09,671 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 01:57:09,671 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 01:57:09,672 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 01:57:09,672 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 01:57:09,672 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 01:57:09,672 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 01:57:09,694 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-22 01:57:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 01:57:09,734 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:09,735 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] [2020-12-22 01:57:09,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:09,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:09,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2020-12-22 01:57:09,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:09,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922283958] [2020-12-22 01:57:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:57:10,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922283958] [2020-12-22 01:57:10,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:10,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 01:57:10,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909996209] [2020-12-22 01:57:10,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:10,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:10,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:10,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:10,096 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-22 01:57:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:11,560 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2020-12-22 01:57:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:11,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-22 01:57:11,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:11,604 INFO L225 Difference]: With dead ends: 685 [2020-12-22 01:57:11,605 INFO L226 Difference]: Without dead ends: 360 [2020-12-22 01:57:11,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-22 01:57:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-22 01:57:11,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-22 01:57:11,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-12-22 01:57:11,682 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 37 [2020-12-22 01:57:11,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:11,683 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-12-22 01:57:11,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-12-22 01:57:11,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-22 01:57:11,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:11,689 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:11,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 01:57:11,689 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:11,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:11,690 INFO L82 PathProgramCache]: Analyzing trace with hash 592086039, now seen corresponding path program 1 times [2020-12-22 01:57:11,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:11,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394357396] [2020-12-22 01:57:11,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:57:12,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394357396] [2020-12-22 01:57:12,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:12,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:12,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019312438] [2020-12-22 01:57:12,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:57:12,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:12,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:57:12,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:57:12,091 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-12-22 01:57:13,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:13,686 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-12-22 01:57:13,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:57:13,687 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2020-12-22 01:57:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:13,693 INFO L225 Difference]: With dead ends: 1074 [2020-12-22 01:57:13,693 INFO L226 Difference]: Without dead ends: 716 [2020-12-22 01:57:13,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 01:57:13,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-22 01:57:13,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-22 01:57:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-22 01:57:13,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-12-22 01:57:13,736 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 116 [2020-12-22 01:57:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:13,736 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-12-22 01:57:13,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:57:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-12-22 01:57:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-12-22 01:57:13,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:13,744 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:13,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 01:57:13,744 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:13,745 INFO L82 PathProgramCache]: Analyzing trace with hash 751763448, now seen corresponding path program 1 times [2020-12-22 01:57:13,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:13,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77838723] [2020-12-22 01:57:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:14,036 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-22 01:57:14,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77838723] [2020-12-22 01:57:14,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985810582] [2020-12-22 01:57:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:14,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:57:14,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-12-22 01:57:14,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:14,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-12-22 01:57:14,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59769617] [2020-12-22 01:57:14,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:14,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:14,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:14,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 01:57:14,457 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-12-22 01:57:15,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:15,377 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2020-12-22 01:57:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:15,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-12-22 01:57:15,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:15,397 INFO L225 Difference]: With dead ends: 1252 [2020-12-22 01:57:15,398 INFO L226 Difference]: Without dead ends: 1250 [2020-12-22 01:57:15,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 01:57:15,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-22 01:57:15,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2020-12-22 01:57:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-12-22 01:57:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-12-22 01:57:15,469 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 142 [2020-12-22 01:57:15,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:15,472 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-12-22 01:57:15,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-12-22 01:57:15,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-12-22 01:57:15,490 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:15,491 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:15,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 01:57:15,710 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:15,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:15,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1135315076, now seen corresponding path program 1 times [2020-12-22 01:57:15,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:15,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312547446] [2020-12-22 01:57:15,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 01:57:16,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312547446] [2020-12-22 01:57:16,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:16,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:16,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047965137] [2020-12-22 01:57:16,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:57:16,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:16,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:57:16,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:57:16,125 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-12-22 01:57:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:17,235 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-12-22 01:57:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:57:17,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2020-12-22 01:57:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:17,242 INFO L225 Difference]: With dead ends: 1993 [2020-12-22 01:57:17,242 INFO L226 Difference]: Without dead ends: 1072 [2020-12-22 01:57:17,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:57:17,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-22 01:57:17,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-22 01:57:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-22 01:57:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-12-22 01:57:17,273 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 196 [2020-12-22 01:57:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:17,273 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-12-22 01:57:17,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:57:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-12-22 01:57:17,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-12-22 01:57:17,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:17,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:17,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 01:57:17,277 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:17,278 INFO L82 PathProgramCache]: Analyzing trace with hash -896120632, now seen corresponding path program 1 times [2020-12-22 01:57:17,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:17,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31916546] [2020-12-22 01:57:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 69 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:57:17,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31916546] [2020-12-22 01:57:17,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013166361] [2020-12-22 01:57:17,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:17,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:57:17,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-22 01:57:17,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:17,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 01:57:17,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032021331] [2020-12-22 01:57:17,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:17,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:17,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:17,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:57:17,982 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-12-22 01:57:18,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:18,804 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2020-12-22 01:57:18,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:18,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-12-22 01:57:18,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:18,811 INFO L225 Difference]: With dead ends: 2320 [2020-12-22 01:57:18,811 INFO L226 Difference]: Without dead ends: 1250 [2020-12-22 01:57:18,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:57:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-22 01:57:18,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-12-22 01:57:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-22 01:57:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2020-12-22 01:57:18,842 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 208 [2020-12-22 01:57:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:18,842 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2020-12-22 01:57:18,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:18,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2020-12-22 01:57:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-12-22 01:57:18,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:18,845 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:19,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:19,059 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:19,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:19,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1599539857, now seen corresponding path program 1 times [2020-12-22 01:57:19,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:19,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745657806] [2020-12-22 01:57:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 69 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:57:19,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745657806] [2020-12-22 01:57:19,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468836845] [2020-12-22 01:57:19,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:19,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:57:19,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-22 01:57:19,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:19,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-22 01:57:19,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81765080] [2020-12-22 01:57:19,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:19,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:19,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:19,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:57:19,918 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2020-12-22 01:57:20,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:20,816 INFO L93 Difference]: Finished difference Result 2676 states and 3182 transitions. [2020-12-22 01:57:20,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:20,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-12-22 01:57:20,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:20,826 INFO L225 Difference]: With dead ends: 2676 [2020-12-22 01:57:20,826 INFO L226 Difference]: Without dead ends: 1606 [2020-12-22 01:57:20,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:57:20,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-22 01:57:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2020-12-22 01:57:20,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-22 01:57:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1637 transitions. [2020-12-22 01:57:20,866 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1637 transitions. Word has length 211 [2020-12-22 01:57:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:20,867 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1637 transitions. [2020-12-22 01:57:20,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1637 transitions. [2020-12-22 01:57:20,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-12-22 01:57:20,871 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:20,871 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 01:57:21,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:21,085 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:21,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:21,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1547025688, now seen corresponding path program 1 times [2020-12-22 01:57:21,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:21,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989955653] [2020-12-22 01:57:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 01:57:21,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989955653] [2020-12-22 01:57:21,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:21,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:21,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430900160] [2020-12-22 01:57:21,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:21,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:21,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:21,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:21,278 INFO L87 Difference]: Start difference. First operand 1428 states and 1637 transitions. Second operand 3 states. [2020-12-22 01:57:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:22,113 INFO L93 Difference]: Finished difference Result 3566 states and 4136 transitions. [2020-12-22 01:57:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:22,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-12-22 01:57:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:22,123 INFO L225 Difference]: With dead ends: 3566 [2020-12-22 01:57:22,124 INFO L226 Difference]: Without dead ends: 2140 [2020-12-22 01:57:22,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:22,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-22 01:57:22,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-22 01:57:22,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-22 01:57:22,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2400 transitions. [2020-12-22 01:57:22,175 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2400 transitions. Word has length 221 [2020-12-22 01:57:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:22,175 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2400 transitions. [2020-12-22 01:57:22,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2400 transitions. [2020-12-22 01:57:22,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2020-12-22 01:57:22,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:22,183 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:22,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 01:57:22,183 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:22,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1550739383, now seen corresponding path program 1 times [2020-12-22 01:57:22,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:22,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951664211] [2020-12-22 01:57:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-12-22 01:57:22,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951664211] [2020-12-22 01:57:22,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:22,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:22,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21118030] [2020-12-22 01:57:22,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:57:22,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:22,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:57:22,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:57:22,601 INFO L87 Difference]: Start difference. First operand 2140 states and 2400 transitions. Second operand 4 states. [2020-12-22 01:57:23,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:23,560 INFO L93 Difference]: Finished difference Result 4336 states and 4867 transitions. [2020-12-22 01:57:23,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:57:23,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 407 [2020-12-22 01:57:23,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:23,573 INFO L225 Difference]: With dead ends: 4336 [2020-12-22 01:57:23,574 INFO L226 Difference]: Without dead ends: 2318 [2020-12-22 01:57:23,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:57:23,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-12-22 01:57:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2020-12-22 01:57:23,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-22 01:57:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2325 transitions. [2020-12-22 01:57:23,632 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2325 transitions. Word has length 407 [2020-12-22 01:57:23,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:23,633 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2325 transitions. [2020-12-22 01:57:23,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:57:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2325 transitions. [2020-12-22 01:57:23,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-12-22 01:57:23,643 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:23,644 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:23,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 01:57:23,644 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:23,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:23,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1155055064, now seen corresponding path program 1 times [2020-12-22 01:57:23,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:23,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361399829] [2020-12-22 01:57:23,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-22 01:57:24,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361399829] [2020-12-22 01:57:24,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:24,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:24,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433206404] [2020-12-22 01:57:24,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:24,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:24,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:24,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:24,160 INFO L87 Difference]: Start difference. First operand 2140 states and 2325 transitions. Second operand 3 states. [2020-12-22 01:57:25,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:25,022 INFO L93 Difference]: Finished difference Result 4634 states and 5086 transitions. [2020-12-22 01:57:25,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:25,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 433 [2020-12-22 01:57:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:25,036 INFO L225 Difference]: With dead ends: 4634 [2020-12-22 01:57:25,037 INFO L226 Difference]: Without dead ends: 2674 [2020-12-22 01:57:25,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-12-22 01:57:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-12-22 01:57:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-12-22 01:57:25,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2684 transitions. [2020-12-22 01:57:25,106 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2684 transitions. Word has length 433 [2020-12-22 01:57:25,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:25,107 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2684 transitions. [2020-12-22 01:57:25,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:25,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2684 transitions. [2020-12-22 01:57:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-12-22 01:57:25,118 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:25,118 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:25,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 01:57:25,119 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:25,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:25,120 INFO L82 PathProgramCache]: Analyzing trace with hash -38075217, now seen corresponding path program 1 times [2020-12-22 01:57:25,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:25,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583573893] [2020-12-22 01:57:25,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-22 01:57:25,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583573893] [2020-12-22 01:57:25,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:25,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:25,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504964881] [2020-12-22 01:57:25,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:25,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:25,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:25,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:25,564 INFO L87 Difference]: Start difference. First operand 2496 states and 2684 transitions. Second operand 3 states. [2020-12-22 01:57:26,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:26,448 INFO L93 Difference]: Finished difference Result 5702 states and 6201 transitions. [2020-12-22 01:57:26,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:26,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 440 [2020-12-22 01:57:26,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:26,466 INFO L225 Difference]: With dead ends: 5702 [2020-12-22 01:57:26,466 INFO L226 Difference]: Without dead ends: 3386 [2020-12-22 01:57:26,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:26,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-12-22 01:57:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-12-22 01:57:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-12-22 01:57:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3637 transitions. [2020-12-22 01:57:26,548 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3637 transitions. Word has length 440 [2020-12-22 01:57:26,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:26,550 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3637 transitions. [2020-12-22 01:57:26,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:26,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3637 transitions. [2020-12-22 01:57:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2020-12-22 01:57:26,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:26,555 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:26,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 01:57:26,556 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:26,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2095835622, now seen corresponding path program 1 times [2020-12-22 01:57:26,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:26,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790055836] [2020-12-22 01:57:26,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 389 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-12-22 01:57:27,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790055836] [2020-12-22 01:57:27,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381734861] [2020-12-22 01:57:27,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:27,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:57:27,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2020-12-22 01:57:27,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:27,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:57:27,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427055842] [2020-12-22 01:57:27,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:27,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:27,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:27,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:27,998 INFO L87 Difference]: Start difference. First operand 3386 states and 3637 transitions. Second operand 3 states. [2020-12-22 01:57:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:28,775 INFO L93 Difference]: Finished difference Result 7126 states and 7668 transitions. [2020-12-22 01:57:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:28,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 485 [2020-12-22 01:57:28,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:28,795 INFO L225 Difference]: With dead ends: 7126 [2020-12-22 01:57:28,795 INFO L226 Difference]: Without dead ends: 3208 [2020-12-22 01:57:28,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:28,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-12-22 01:57:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2020-12-22 01:57:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-12-22 01:57:28,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3052 transitions. [2020-12-22 01:57:28,866 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3052 transitions. Word has length 485 [2020-12-22 01:57:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:28,867 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3052 transitions. [2020-12-22 01:57:28,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3052 transitions. [2020-12-22 01:57:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2020-12-22 01:57:28,874 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:28,875 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:29,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:29,089 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:29,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:29,091 INFO L82 PathProgramCache]: Analyzing trace with hash 605799915, now seen corresponding path program 1 times [2020-12-22 01:57:29,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:29,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817067751] [2020-12-22 01:57:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 798 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-12-22 01:57:29,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817067751] [2020-12-22 01:57:29,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594119297] [2020-12-22 01:57:29,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:30,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:57:30,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2020-12-22 01:57:30,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:30,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:57:30,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966150484] [2020-12-22 01:57:30,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:30,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:30,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:30,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:30,865 INFO L87 Difference]: Start difference. First operand 2852 states and 3052 transitions. Second operand 3 states. [2020-12-22 01:57:31,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:31,657 INFO L93 Difference]: Finished difference Result 6058 states and 6533 transitions. [2020-12-22 01:57:31,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:31,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 596 [2020-12-22 01:57:31,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:31,674 INFO L225 Difference]: With dead ends: 6058 [2020-12-22 01:57:31,675 INFO L226 Difference]: Without dead ends: 3386 [2020-12-22 01:57:31,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-12-22 01:57:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3030. [2020-12-22 01:57:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-12-22 01:57:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3238 transitions. [2020-12-22 01:57:31,736 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3238 transitions. Word has length 596 [2020-12-22 01:57:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:31,738 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3238 transitions. [2020-12-22 01:57:31,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3238 transitions. [2020-12-22 01:57:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2020-12-22 01:57:31,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:31,745 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:31,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 01:57:31,960 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:31,960 INFO L82 PathProgramCache]: Analyzing trace with hash -2070534940, now seen corresponding path program 1 times [2020-12-22 01:57:31,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:31,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803216876] [2020-12-22 01:57:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 874 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-12-22 01:57:33,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803216876] [2020-12-22 01:57:33,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547492987] [2020-12-22 01:57:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:33,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:57:33,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2020-12-22 01:57:33,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:33,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-22 01:57:33,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476317382] [2020-12-22 01:57:33,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:33,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:33,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:33,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:33,991 INFO L87 Difference]: Start difference. First operand 3030 states and 3238 transitions. Second operand 3 states. [2020-12-22 01:57:34,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:34,739 INFO L93 Difference]: Finished difference Result 6058 states and 6478 transitions. [2020-12-22 01:57:34,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:34,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 615 [2020-12-22 01:57:34,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:34,754 INFO L225 Difference]: With dead ends: 6058 [2020-12-22 01:57:34,755 INFO L226 Difference]: Without dead ends: 3208 [2020-12-22 01:57:34,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:34,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-12-22 01:57:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2020-12-22 01:57:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-12-22 01:57:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3044 transitions. [2020-12-22 01:57:34,808 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3044 transitions. Word has length 615 [2020-12-22 01:57:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:34,809 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3044 transitions. [2020-12-22 01:57:34,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3044 transitions. [2020-12-22 01:57:34,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2020-12-22 01:57:34,816 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:34,816 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 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] [2020-12-22 01:57:35,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:35,030 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:35,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:35,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1023516007, now seen corresponding path program 1 times [2020-12-22 01:57:35,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:35,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760243159] [2020-12-22 01:57:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 904 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2020-12-22 01:57:35,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760243159] [2020-12-22 01:57:35,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808643923] [2020-12-22 01:57:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:36,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 01:57:36,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:37,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2020-12-22 01:57:37,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:37,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-22 01:57:37,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814977695] [2020-12-22 01:57:37,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:37,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:37,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:37,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:37,577 INFO L87 Difference]: Start difference. First operand 2852 states and 3044 transitions. Second operand 3 states. [2020-12-22 01:57:38,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:38,327 INFO L93 Difference]: Finished difference Result 5702 states and 6090 transitions. [2020-12-22 01:57:38,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:38,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2020-12-22 01:57:38,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:38,341 INFO L225 Difference]: With dead ends: 5702 [2020-12-22 01:57:38,341 INFO L226 Difference]: Without dead ends: 2852 [2020-12-22 01:57:38,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:38,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-12-22 01:57:38,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2020-12-22 01:57:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-12-22 01:57:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 2989 transitions. [2020-12-22 01:57:38,408 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 2989 transitions. Word has length 629 [2020-12-22 01:57:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:38,409 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 2989 transitions. [2020-12-22 01:57:38,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:38,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 2989 transitions. [2020-12-22 01:57:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-12-22 01:57:38,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:38,417 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 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] [2020-12-22 01:57:38,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-22 01:57:38,631 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:38,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash 2022748667, now seen corresponding path program 1 times [2020-12-22 01:57:38,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:38,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945722014] [2020-12-22 01:57:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-12-22 01:57:39,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945722014] [2020-12-22 01:57:39,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:39,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:39,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301331830] [2020-12-22 01:57:39,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:39,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:39,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:39,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:39,208 INFO L87 Difference]: Start difference. First operand 2852 states and 2989 transitions. Second operand 3 states. [2020-12-22 01:57:39,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:39,920 INFO L93 Difference]: Finished difference Result 6414 states and 6743 transitions. [2020-12-22 01:57:39,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:39,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 651 [2020-12-22 01:57:39,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:39,931 INFO L225 Difference]: With dead ends: 6414 [2020-12-22 01:57:39,931 INFO L226 Difference]: Without dead ends: 3742 [2020-12-22 01:57:39,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-12-22 01:57:39,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2020-12-22 01:57:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-22 01:57:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3904 transitions. [2020-12-22 01:57:39,994 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3904 transitions. Word has length 651 [2020-12-22 01:57:39,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:39,994 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3904 transitions. [2020-12-22 01:57:39,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:39,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3904 transitions. [2020-12-22 01:57:40,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2020-12-22 01:57:40,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:40,006 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 01:57:40,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 01:57:40,007 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:40,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:40,007 INFO L82 PathProgramCache]: Analyzing trace with hash -253890537, now seen corresponding path program 1 times [2020-12-22 01:57:40,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:40,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400596256] [2020-12-22 01:57:40,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-12-22 01:57:40,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400596256] [2020-12-22 01:57:40,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712803211] [2020-12-22 01:57:40,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:41,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 01:57:41,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2020-12-22 01:57:42,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 01:57:42,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-22 01:57:42,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608237032] [2020-12-22 01:57:42,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:57:42,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:42,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:57:42,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:57:42,349 INFO L87 Difference]: Start difference. First operand 3742 states and 3904 transitions. Second operand 4 states. [2020-12-22 01:57:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:43,372 INFO L93 Difference]: Finished difference Result 7838 states and 8201 transitions. [2020-12-22 01:57:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:57:43,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 806 [2020-12-22 01:57:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:43,383 INFO L225 Difference]: With dead ends: 7838 [2020-12-22 01:57:43,383 INFO L226 Difference]: Without dead ends: 4276 [2020-12-22 01:57:43,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 01:57:43,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-12-22 01:57:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2020-12-22 01:57:43,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-12-22 01:57:43,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4464 transitions. [2020-12-22 01:57:43,483 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4464 transitions. Word has length 806 [2020-12-22 01:57:43,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:43,484 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4464 transitions. [2020-12-22 01:57:43,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:57:43,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4464 transitions. [2020-12-22 01:57:43,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2020-12-22 01:57:43,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:43,497 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 01:57:43,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 01:57:43,711 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:43,713 INFO L82 PathProgramCache]: Analyzing trace with hash -685925002, now seen corresponding path program 1 times [2020-12-22 01:57:43,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:43,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891368935] [2020-12-22 01:57:43,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:44,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2020-12-22 01:57:44,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891368935] [2020-12-22 01:57:44,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:44,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:44,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779872463] [2020-12-22 01:57:44,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:44,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:44,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:44,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:44,407 INFO L87 Difference]: Start difference. First operand 4276 states and 4464 transitions. Second operand 3 states. [2020-12-22 01:57:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:45,084 INFO L93 Difference]: Finished difference Result 8906 states and 9323 transitions. [2020-12-22 01:57:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:45,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 878 [2020-12-22 01:57:45,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:45,095 INFO L225 Difference]: With dead ends: 8906 [2020-12-22 01:57:45,095 INFO L226 Difference]: Without dead ends: 4810 [2020-12-22 01:57:45,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:45,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-12-22 01:57:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2020-12-22 01:57:45,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-12-22 01:57:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5002 transitions. [2020-12-22 01:57:45,177 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5002 transitions. Word has length 878 [2020-12-22 01:57:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:45,177 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5002 transitions. [2020-12-22 01:57:45,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5002 transitions. [2020-12-22 01:57:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2020-12-22 01:57:45,189 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:45,190 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:45,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 01:57:45,191 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:45,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:45,192 INFO L82 PathProgramCache]: Analyzing trace with hash -32320893, now seen corresponding path program 1 times [2020-12-22 01:57:45,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:45,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671423626] [2020-12-22 01:57:45,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1590 proven. 93 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2020-12-22 01:57:46,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671423626] [2020-12-22 01:57:46,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851795630] [2020-12-22 01:57:46,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:47,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 01:57:47,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:48,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2020-12-22 01:57:48,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:48,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-22 01:57:48,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156539832] [2020-12-22 01:57:48,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:48,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:48,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:48,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:57:48,365 INFO L87 Difference]: Start difference. First operand 4810 states and 5002 transitions. Second operand 3 states. [2020-12-22 01:57:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:49,050 INFO L93 Difference]: Finished difference Result 9440 states and 9823 transitions. [2020-12-22 01:57:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:49,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 896 [2020-12-22 01:57:49,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:49,058 INFO L225 Difference]: With dead ends: 9440 [2020-12-22 01:57:49,058 INFO L226 Difference]: Without dead ends: 4810 [2020-12-22 01:57:49,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 899 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:57:49,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-12-22 01:57:49,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4632. [2020-12-22 01:57:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-12-22 01:57:49,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4820 transitions. [2020-12-22 01:57:49,139 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4820 transitions. Word has length 896 [2020-12-22 01:57:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:49,140 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4820 transitions. [2020-12-22 01:57:49,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4820 transitions. [2020-12-22 01:57:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2020-12-22 01:57:49,152 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:49,153 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:49,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-22 01:57:49,368 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:49,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1437208854, now seen corresponding path program 1 times [2020-12-22 01:57:49,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:49,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931908809] [2020-12-22 01:57:49,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-22 01:57:50,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931908809] [2020-12-22 01:57:50,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:50,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:50,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529861185] [2020-12-22 01:57:50,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:50,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:50,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:50,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:50,494 INFO L87 Difference]: Start difference. First operand 4632 states and 4820 transitions. Second operand 3 states. [2020-12-22 01:57:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:51,254 INFO L93 Difference]: Finished difference Result 8906 states and 9279 transitions. [2020-12-22 01:57:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:51,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 973 [2020-12-22 01:57:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:51,265 INFO L225 Difference]: With dead ends: 8906 [2020-12-22 01:57:51,265 INFO L226 Difference]: Without dead ends: 4454 [2020-12-22 01:57:51,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-12-22 01:57:51,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2020-12-22 01:57:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-12-22 01:57:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4609 transitions. [2020-12-22 01:57:51,342 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4609 transitions. Word has length 973 [2020-12-22 01:57:51,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:51,343 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4609 transitions. [2020-12-22 01:57:51,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:51,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4609 transitions. [2020-12-22 01:57:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2020-12-22 01:57:51,358 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:51,359 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:51,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 01:57:51,359 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:51,360 INFO L82 PathProgramCache]: Analyzing trace with hash 659097908, now seen corresponding path program 1 times [2020-12-22 01:57:51,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:51,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620026492] [2020-12-22 01:57:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2020-12-22 01:57:52,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620026492] [2020-12-22 01:57:52,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:57:52,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:57:52,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733379634] [2020-12-22 01:57:52,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:57:52,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:52,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:57:52,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:52,660 INFO L87 Difference]: Start difference. First operand 4454 states and 4609 transitions. Second operand 3 states. [2020-12-22 01:57:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:53,406 INFO L93 Difference]: Finished difference Result 8906 states and 9223 transitions. [2020-12-22 01:57:53,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:57:53,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1048 [2020-12-22 01:57:53,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:53,417 INFO L225 Difference]: With dead ends: 8906 [2020-12-22 01:57:53,418 INFO L226 Difference]: Without dead ends: 4632 [2020-12-22 01:57:53,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:57:53,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-12-22 01:57:53,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2020-12-22 01:57:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-12-22 01:57:53,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4767 transitions. [2020-12-22 01:57:53,503 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4767 transitions. Word has length 1048 [2020-12-22 01:57:53,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:53,505 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4767 transitions. [2020-12-22 01:57:53,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:57:53,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4767 transitions. [2020-12-22 01:57:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1097 [2020-12-22 01:57:53,525 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:53,526 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 01:57:53,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 01:57:53,526 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:53,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:53,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1358554948, now seen corresponding path program 1 times [2020-12-22 01:57:53,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:53,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160247140] [2020-12-22 01:57:53,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2746 proven. 72 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2020-12-22 01:57:54,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160247140] [2020-12-22 01:57:54,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864910899] [2020-12-22 01:57:54,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:57:55,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 01:57:55,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:57:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2459 proven. 0 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2020-12-22 01:57:56,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:57:56,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2020-12-22 01:57:56,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932195065] [2020-12-22 01:57:56,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 01:57:56,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:57:56,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 01:57:56,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:56,946 INFO L87 Difference]: Start difference. First operand 4632 states and 4767 transitions. Second operand 4 states. [2020-12-22 01:57:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:57:58,120 INFO L93 Difference]: Finished difference Result 9618 states and 9905 transitions. [2020-12-22 01:57:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 01:57:58,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1096 [2020-12-22 01:57:58,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:57:58,131 INFO L225 Difference]: With dead ends: 9618 [2020-12-22 01:57:58,131 INFO L226 Difference]: Without dead ends: 5166 [2020-12-22 01:57:58,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:57:58,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2020-12-22 01:57:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2020-12-22 01:57:58,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2020-12-22 01:57:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5128 transitions. [2020-12-22 01:57:58,222 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5128 transitions. Word has length 1096 [2020-12-22 01:57:58,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:57:58,223 INFO L481 AbstractCegarLoop]: Abstraction has 4988 states and 5128 transitions. [2020-12-22 01:57:58,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 01:57:58,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5128 transitions. [2020-12-22 01:57:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1634 [2020-12-22 01:57:58,256 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:57:58,257 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:57:58,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:57:58,471 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:57:58,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:57:58,473 INFO L82 PathProgramCache]: Analyzing trace with hash -2052479464, now seen corresponding path program 1 times [2020-12-22 01:57:58,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:57:58,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818100749] [2020-12-22 01:57:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:57:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 4297 proven. 588 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2020-12-22 01:58:02,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818100749] [2020-12-22 01:58:02,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365105730] [2020-12-22 01:58:02,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:58:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:03,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 1998 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 01:58:03,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:58:04,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 01:58:04,735 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 01:58:04,783 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 01:58:04,795 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 01:58:04,803 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 01:58:04,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 01:58:04,832 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 01:58:04,847 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 01:58:04,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-22 01:58:04,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-22 01:58:04,983 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-22 01:58:05,097 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 01:58:05,101 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 01:58:05,103 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-22 01:58:05,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 01:58:05,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-22 01:58:05,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2020-12-22 01:58:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 8500 backedges. 3486 proven. 438 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2020-12-22 01:58:07,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 01:58:07,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2020-12-22 01:58:07,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709987691] [2020-12-22 01:58:07,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 01:58:07,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:58:07,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 01:58:07,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-22 01:58:07,404 INFO L87 Difference]: Start difference. First operand 4988 states and 5128 transitions. Second operand 11 states. [2020-12-22 01:58:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:58:17,480 INFO L93 Difference]: Finished difference Result 11771 states and 12113 transitions. [2020-12-22 01:58:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 01:58:17,482 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1633 [2020-12-22 01:58:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:58:17,494 INFO L225 Difference]: With dead ends: 11771 [2020-12-22 01:58:17,494 INFO L226 Difference]: Without dead ends: 6946 [2020-12-22 01:58:17,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1657 GetRequests, 1639 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2020-12-22 01:58:17,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2020-12-22 01:58:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 5878. [2020-12-22 01:58:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5878 states. [2020-12-22 01:58:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6027 transitions. [2020-12-22 01:58:17,592 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6027 transitions. Word has length 1633 [2020-12-22 01:58:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:58:17,594 INFO L481 AbstractCegarLoop]: Abstraction has 5878 states and 6027 transitions. [2020-12-22 01:58:17,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 01:58:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6027 transitions. [2020-12-22 01:58:17,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2020-12-22 01:58:17,631 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:58:17,633 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:58:17,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-22 01:58:17,847 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:58:17,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:58:17,849 INFO L82 PathProgramCache]: Analyzing trace with hash 334826005, now seen corresponding path program 1 times [2020-12-22 01:58:17,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:58:17,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136417324] [2020-12-22 01:58:17,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:58:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 3302 proven. 1045 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2020-12-22 01:58:21,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136417324] [2020-12-22 01:58:21,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037315959] [2020-12-22 01:58:21,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:58:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:21,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 01:58:21,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:58:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 10109 backedges. 4347 proven. 0 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2020-12-22 01:58:24,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:58:24,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-12-22 01:58:24,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4332514] [2020-12-22 01:58:24,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:58:24,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:58:24,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:58:24,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:58:24,628 INFO L87 Difference]: Start difference. First operand 5878 states and 6027 transitions. Second operand 3 states. [2020-12-22 01:58:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:58:25,382 INFO L93 Difference]: Finished difference Result 12466 states and 12773 transitions. [2020-12-22 01:58:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:58:25,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1806 [2020-12-22 01:58:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:58:25,389 INFO L225 Difference]: With dead ends: 12466 [2020-12-22 01:58:25,389 INFO L226 Difference]: Without dead ends: 4810 [2020-12-22 01:58:25,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1809 GetRequests, 1805 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 01:58:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-12-22 01:58:25,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4276. [2020-12-22 01:58:25,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-12-22 01:58:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4363 transitions. [2020-12-22 01:58:25,465 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4363 transitions. Word has length 1806 [2020-12-22 01:58:25,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:58:25,467 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4363 transitions. [2020-12-22 01:58:25,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:58:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4363 transitions. [2020-12-22 01:58:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1878 [2020-12-22 01:58:25,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:58:25,502 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:58:25,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:58:25,718 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:58:25,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:58:25,719 INFO L82 PathProgramCache]: Analyzing trace with hash -99629901, now seen corresponding path program 1 times [2020-12-22 01:58:25,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:58:25,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794805514] [2020-12-22 01:58:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:58:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 4599 proven. 121 refuted. 0 times theorem prover too weak. 6811 trivial. 0 not checked. [2020-12-22 01:58:28,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794805514] [2020-12-22 01:58:28,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790557849] [2020-12-22 01:58:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 01:58:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:28,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 01:58:28,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 01:58:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 11531 backedges. 6920 proven. 0 refuted. 0 times theorem prover too weak. 4611 trivial. 0 not checked. [2020-12-22 01:58:32,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 01:58:32,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 7 [2020-12-22 01:58:32,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695658603] [2020-12-22 01:58:32,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 01:58:32,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:58:32,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 01:58:32,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:58:32,363 INFO L87 Difference]: Start difference. First operand 4276 states and 4363 transitions. Second operand 6 states. [2020-12-22 01:58:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:58:34,564 INFO L93 Difference]: Finished difference Result 9796 states and 10030 transitions. [2020-12-22 01:58:34,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 01:58:34,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1877 [2020-12-22 01:58:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:58:34,570 INFO L225 Difference]: With dead ends: 9796 [2020-12-22 01:58:34,570 INFO L226 Difference]: Without dead ends: 5166 [2020-12-22 01:58:34,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1880 GetRequests, 1875 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 01:58:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2020-12-22 01:58:34,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4632. [2020-12-22 01:58:34,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2020-12-22 01:58:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4700 transitions. [2020-12-22 01:58:34,635 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4700 transitions. Word has length 1877 [2020-12-22 01:58:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:58:34,636 INFO L481 AbstractCegarLoop]: Abstraction has 4632 states and 4700 transitions. [2020-12-22 01:58:34,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 01:58:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4700 transitions. [2020-12-22 01:58:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1931 [2020-12-22 01:58:34,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:58:34,673 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:58:34,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-22 01:58:34,887 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:58:34,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:58:34,889 INFO L82 PathProgramCache]: Analyzing trace with hash -704009136, now seen corresponding path program 1 times [2020-12-22 01:58:34,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:58:34,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83867308] [2020-12-22 01:58:34,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:58:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 11699 backedges. 2024 proven. 0 refuted. 0 times theorem prover too weak. 9675 trivial. 0 not checked. [2020-12-22 01:58:37,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83867308] [2020-12-22 01:58:37,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:58:37,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:58:37,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119324022] [2020-12-22 01:58:37,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:58:37,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:58:37,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:58:37,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:58:37,439 INFO L87 Difference]: Start difference. First operand 4632 states and 4700 transitions. Second operand 3 states. [2020-12-22 01:58:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:58:38,160 INFO L93 Difference]: Finished difference Result 8906 states and 9040 transitions. [2020-12-22 01:58:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:58:38,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1930 [2020-12-22 01:58:38,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:58:38,165 INFO L225 Difference]: With dead ends: 8906 [2020-12-22 01:58:38,166 INFO L226 Difference]: Without dead ends: 4632 [2020-12-22 01:58:38,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:58:38,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2020-12-22 01:58:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2020-12-22 01:58:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2020-12-22 01:58:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4514 transitions. [2020-12-22 01:58:38,214 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4514 transitions. Word has length 1930 [2020-12-22 01:58:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:58:38,216 INFO L481 AbstractCegarLoop]: Abstraction has 4454 states and 4514 transitions. [2020-12-22 01:58:38,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:58:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4514 transitions. [2020-12-22 01:58:38,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2128 [2020-12-22 01:58:38,250 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:58:38,251 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 01:58:38,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 01:58:38,251 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:58:38,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:58:38,252 INFO L82 PathProgramCache]: Analyzing trace with hash -263362451, now seen corresponding path program 1 times [2020-12-22 01:58:38,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:58:38,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145906648] [2020-12-22 01:58:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:58:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14633 backedges. 9451 proven. 0 refuted. 0 times theorem prover too weak. 5182 trivial. 0 not checked. [2020-12-22 01:58:41,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145906648] [2020-12-22 01:58:41,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:58:41,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:58:41,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836414935] [2020-12-22 01:58:41,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:58:41,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:58:41,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:58:41,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:58:41,930 INFO L87 Difference]: Start difference. First operand 4454 states and 4514 transitions. Second operand 3 states. [2020-12-22 01:58:42,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:58:42,621 INFO L93 Difference]: Finished difference Result 8194 states and 8300 transitions. [2020-12-22 01:58:42,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:58:42,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2127 [2020-12-22 01:58:42,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:58:42,626 INFO L225 Difference]: With dead ends: 8194 [2020-12-22 01:58:42,626 INFO L226 Difference]: Without dead ends: 4098 [2020-12-22 01:58:42,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:58:42,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-22 01:58:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2020-12-22 01:58:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-12-22 01:58:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3777 transitions. [2020-12-22 01:58:42,666 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3777 transitions. Word has length 2127 [2020-12-22 01:58:42,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:58:42,668 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3777 transitions. [2020-12-22 01:58:42,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:58:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3777 transitions. [2020-12-22 01:58:42,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2348 [2020-12-22 01:58:42,703 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 01:58:42,704 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 14, 14, 14, 13, 13, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2020-12-22 01:58:42,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 01:58:42,704 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 01:58:42,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 01:58:42,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1943758325, now seen corresponding path program 1 times [2020-12-22 01:58:42,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 01:58:42,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456049027] [2020-12-22 01:58:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 01:58:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 01:58:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 17391 backedges. 4239 proven. 0 refuted. 0 times theorem prover too weak. 13152 trivial. 0 not checked. [2020-12-22 01:58:45,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456049027] [2020-12-22 01:58:45,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 01:58:45,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 01:58:45,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392126336] [2020-12-22 01:58:45,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 01:58:45,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 01:58:45,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 01:58:45,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:58:45,887 INFO L87 Difference]: Start difference. First operand 3742 states and 3777 transitions. Second operand 3 states. [2020-12-22 01:58:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 01:58:46,585 INFO L93 Difference]: Finished difference Result 4810 states and 4862 transitions. [2020-12-22 01:58:46,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 01:58:46,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2347 [2020-12-22 01:58:46,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 01:58:46,588 INFO L225 Difference]: With dead ends: 4810 [2020-12-22 01:58:46,588 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 01:58:46,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 01:58:46,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 01:58:46,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 01:58:46,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 01:58:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 01:58:46,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2347 [2020-12-22 01:58:46,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 01:58:46,590 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 01:58:46,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 01:58:46,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 01:58:46,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 01:58:46,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 01:58:46,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 01:58:46,777 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 169 [2020-12-22 01:58:46,935 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 169 [2020-12-22 01:58:48,181 WARN L197 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2020-12-22 01:58:49,423 WARN L197 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2020-12-22 01:58:49,427 INFO L189 CegarLoopUtils]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-22 01:58:49,428 INFO L189 CegarLoopUtils]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-22 01:58:49,429 INFO L189 CegarLoopUtils]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,430 INFO L189 CegarLoopUtils]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,431 INFO L189 CegarLoopUtils]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-22 01:58:49,432 INFO L189 CegarLoopUtils]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-22 01:58:49,433 INFO L189 CegarLoopUtils]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-22 01:58:49,434 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-22 01:58:49,435 INFO L189 CegarLoopUtils]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-22 01:58:49,436 INFO L189 CegarLoopUtils]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 01:58:49,437 INFO L189 CegarLoopUtils]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-22 01:58:49,438 INFO L189 CegarLoopUtils]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,439 INFO L189 CegarLoopUtils]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,440 INFO L189 CegarLoopUtils]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-22 01:58:49,441 INFO L189 CegarLoopUtils]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-22 01:58:49,442 INFO L189 CegarLoopUtils]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-22 01:58:49,443 INFO L189 CegarLoopUtils]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-22 01:58:49,444 INFO L189 CegarLoopUtils]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,445 INFO L189 CegarLoopUtils]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,446 INFO L185 CegarLoopUtils]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse6 (<= 82 ~a12~0)) (.cse4 (<= 9 ~a15~0)) (.cse13 (<= ~a12~0 10)) (.cse5 (< 95380 ~a12~0)) (.cse0 (<= ~a15~0 7)) (.cse10 (< 0 (+ ~a12~0 43))) (.cse12 (<= 7 ~a21~0)) (.cse8 (<= ~a15~0 8)) (.cse7 (<= (+ ~a12~0 49) 0)) (.cse15 (<= ~a21~0 6)) (.cse16 (<= ~a15~0 6)) (.cse11 (<= ~a12~0 11)) (.cse14 (<= 10 ~a21~0)) (.cse1 (<= 8 ~a21~0)) (.cse2 (= ~a24~0 1)) (.cse9 (< 18 ~a12~0)) (.cse3 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a12~0 95434) .cse2 .cse4 .cse5) (and .cse6 .cse1 .cse2 (<= ~a12~0 73282) .cse3) (and .cse0 .cse7 .cse2 .cse3) (and .cse1 .cse2 .cse8 (<= ~a21~0 9) .cse9 (<= ~a12~0 76)) (and .cse10 .cse11 .cse1 .cse2 .cse8) (and .cse6 .cse12 .cse2 .cse4) (and .cse1 .cse2 .cse4 (<= (+ ~a12~0 526767) 0) .cse3) (and .cse10 .cse13 .cse1 .cse2 .cse3) (and (<= 8 ~a15~0) .cse10 .cse13 .cse2 .cse8) (and .cse0 .cse10 .cse1 .cse2) (and .cse2 .cse14 .cse5) (and .cse0 .cse10 .cse2 .cse15) (and .cse2 .cse8 (<= 286349 ~a12~0) .cse15) (and (<= ~a21~0 7) .cse12 .cse7 .cse2 .cse8) (and .cse7 .cse15 .cse16) (and .cse2 .cse16) (and .cse11 .cse2 .cse14) (and .cse1 .cse2 (<= ~a12~0 72) .cse9 .cse3))) [2020-12-22 01:58:49,446 INFO L189 CegarLoopUtils]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-22 01:58:49,446 INFO L189 CegarLoopUtils]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-22 01:58:49,446 INFO L189 CegarLoopUtils]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-22 01:58:49,446 INFO L189 CegarLoopUtils]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-22 01:58:49,446 INFO L189 CegarLoopUtils]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-22 01:58:49,446 INFO L189 CegarLoopUtils]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-22 01:58:49,446 INFO L189 CegarLoopUtils]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L192 CegarLoopUtils]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,447 INFO L189 CegarLoopUtils]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,448 INFO L189 CegarLoopUtils]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L185 CegarLoopUtils]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse6 (<= 82 ~a12~0)) (.cse4 (<= 9 ~a15~0)) (.cse13 (<= ~a12~0 10)) (.cse5 (< 95380 ~a12~0)) (.cse0 (<= ~a15~0 7)) (.cse10 (< 0 (+ ~a12~0 43))) (.cse12 (<= 7 ~a21~0)) (.cse8 (<= ~a15~0 8)) (.cse7 (<= (+ ~a12~0 49) 0)) (.cse15 (<= ~a21~0 6)) (.cse16 (<= ~a15~0 6)) (.cse11 (<= ~a12~0 11)) (.cse14 (<= 10 ~a21~0)) (.cse1 (<= 8 ~a21~0)) (.cse2 (= ~a24~0 1)) (.cse9 (< 18 ~a12~0)) (.cse3 (<= ~a21~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= ~a12~0 95434) .cse2 .cse4 .cse5) (and .cse6 .cse1 .cse2 (<= ~a12~0 73282) .cse3) (and .cse0 .cse7 .cse2 .cse3) (and .cse1 .cse2 .cse8 (<= ~a21~0 9) .cse9 (<= ~a12~0 76)) (and .cse10 .cse11 .cse1 .cse2 .cse8) (and .cse6 .cse12 .cse2 .cse4) (and .cse1 .cse2 .cse4 (<= (+ ~a12~0 526767) 0) .cse3) (and .cse10 .cse13 .cse1 .cse2 .cse3) (and (<= 8 ~a15~0) .cse10 .cse13 .cse2 .cse8) (and .cse0 .cse10 .cse1 .cse2) (and .cse2 .cse14 .cse5) (and .cse0 .cse10 .cse2 .cse15) (and .cse2 .cse8 (<= 286349 ~a12~0) .cse15) (and (<= ~a21~0 7) .cse12 .cse7 .cse2 .cse8) (and .cse7 .cse15 .cse16) (and .cse2 .cse16) (and .cse11 .cse2 .cse14) (and .cse1 .cse2 (<= ~a12~0 72) .cse9 .cse3))) [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,449 INFO L189 CegarLoopUtils]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-22 01:58:49,450 INFO L189 CegarLoopUtils]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-22 01:58:49,450 INFO L189 CegarLoopUtils]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-22 01:58:49,450 INFO L189 CegarLoopUtils]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-22 01:58:49,450 INFO L189 CegarLoopUtils]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-22 01:58:49,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:58:49 BoogieIcfgContainer [2020-12-22 01:58:49,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 01:58:49,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 01:58:49,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 01:58:49,479 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 01:58:49,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:57:09" (3/4) ... [2020-12-22 01:58:49,483 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 01:58:49,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 01:58:49,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 01:58:49,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:58:49,520 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 01:58:49,689 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/eca-rers2012/Problem14_label50.c-witness.graphml [2020-12-22 01:58:49,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 01:58:49,691 INFO L168 Benchmark]: Toolchain (without parser) took 103385.91 ms. Allocated memory was 151.0 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 124.5 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 173.6 MB. Max. memory is 8.0 GB. [2020-12-22 01:58:49,692 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 01:58:49,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 917.44 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 123.7 MB in the end (delta: 567.5 kB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-12-22 01:58:49,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.23 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 114.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 01:58:49,693 INFO L168 Benchmark]: Boogie Preprocessor took 89.18 ms. Allocated memory is still 151.0 MB. Free memory was 114.3 MB in the beginning and 108.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 01:58:49,694 INFO L168 Benchmark]: RCFGBuilder took 2157.14 ms. Allocated memory is still 151.0 MB. Free memory was 108.0 MB in the beginning and 61.6 MB in the end (delta: 46.4 MB). Peak memory consumption was 68.9 MB. Max. memory is 8.0 GB. [2020-12-22 01:58:49,694 INFO L168 Benchmark]: TraceAbstraction took 99878.83 ms. Allocated memory was 151.0 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 61.1 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2020-12-22 01:58:49,695 INFO L168 Benchmark]: Witness Printer took 210.40 ms. Allocated memory is still 2.1 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 01:58:49,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 917.44 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 123.7 MB in the end (delta: 567.5 kB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 124.23 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 114.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 89.18 ms. Allocated memory is still 151.0 MB. Free memory was 114.3 MB in the beginning and 108.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2157.14 ms. Allocated memory is still 151.0 MB. Free memory was 108.0 MB in the beginning and 61.6 MB in the end (delta: 46.4 MB). Peak memory consumption was 68.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 99878.83 ms. Allocated memory was 151.0 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 61.1 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. * Witness Printer took 210.40 ms. Allocated memory is still 2.1 GB. Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a15 <= 7 && 8 <= a21) && a24 == 1) && a21 <= 8) || (((a12 <= 95434 && a24 == 1) && 9 <= a15) && 95380 < a12)) || ((((82 <= a12 && 8 <= a21) && a24 == 1) && a12 <= 73282) && a21 <= 8)) || (((a15 <= 7 && a12 + 49 <= 0) && a24 == 1) && a21 <= 8)) || (((((8 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && 18 < a12) && a12 <= 76)) || ((((0 < a12 + 43 && a12 <= 11) && 8 <= a21) && a24 == 1) && a15 <= 8)) || (((82 <= a12 && 7 <= a21) && a24 == 1) && 9 <= a15)) || ((((8 <= a21 && a24 == 1) && 9 <= a15) && a12 + 526767 <= 0) && a21 <= 8)) || ((((0 < a12 + 43 && a12 <= 10) && 8 <= a21) && a24 == 1) && a21 <= 8)) || ((((8 <= a15 && 0 < a12 + 43) && a12 <= 10) && a24 == 1) && a15 <= 8)) || (((a15 <= 7 && 0 < a12 + 43) && 8 <= a21) && a24 == 1)) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || (((a15 <= 7 && 0 < a12 + 43) && a24 == 1) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && 286349 <= a12) && a21 <= 6)) || ((((a21 <= 7 && 7 <= a21) && a12 + 49 <= 0) && a24 == 1) && a15 <= 8)) || ((a12 + 49 <= 0 && a21 <= 6) && a15 <= 6)) || (a24 == 1 && a15 <= 6)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((8 <= a21 && a24 == 1) && a12 <= 72) && 18 < a12) && a21 <= 8) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a15 <= 7 && 8 <= a21) && a24 == 1) && a21 <= 8) || (((a12 <= 95434 && a24 == 1) && 9 <= a15) && 95380 < a12)) || ((((82 <= a12 && 8 <= a21) && a24 == 1) && a12 <= 73282) && a21 <= 8)) || (((a15 <= 7 && a12 + 49 <= 0) && a24 == 1) && a21 <= 8)) || (((((8 <= a21 && a24 == 1) && a15 <= 8) && a21 <= 9) && 18 < a12) && a12 <= 76)) || ((((0 < a12 + 43 && a12 <= 11) && 8 <= a21) && a24 == 1) && a15 <= 8)) || (((82 <= a12 && 7 <= a21) && a24 == 1) && 9 <= a15)) || ((((8 <= a21 && a24 == 1) && 9 <= a15) && a12 + 526767 <= 0) && a21 <= 8)) || ((((0 < a12 + 43 && a12 <= 10) && 8 <= a21) && a24 == 1) && a21 <= 8)) || ((((8 <= a15 && 0 < a12 + 43) && a12 <= 10) && a24 == 1) && a15 <= 8)) || (((a15 <= 7 && 0 < a12 + 43) && 8 <= a21) && a24 == 1)) || ((a24 == 1 && 10 <= a21) && 95380 < a12)) || (((a15 <= 7 && 0 < a12 + 43) && a24 == 1) && a21 <= 6)) || (((a24 == 1 && a15 <= 8) && 286349 <= a12) && a21 <= 6)) || ((((a21 <= 7 && 7 <= a21) && a12 + 49 <= 0) && a24 == 1) && a15 <= 8)) || ((a12 + 49 <= 0 && a21 <= 6) && a15 <= 6)) || (a24 == 1 && a15 <= 6)) || ((a12 <= 11 && a24 == 1) && 10 <= a21)) || ((((8 <= a21 && a24 == 1) && a12 <= 72) && 18 < a12) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 96.9s, OverallIterations: 27, TraceHistogramMax: 19, AutomataDifference: 34.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3496 SDtfs, 3633 SDslu, 291 SDs, 0 SdLazy, 22641 SolverSat, 1292 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11106 GetRequests, 11019 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 5162 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 89 NumberOfFragments, 557 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3698 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2806 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 28.1s InterpolantComputationTime, 33804 NumberOfCodeBlocks, 33804 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 33764 ConstructedInterpolants, 0 QuantifiedInterpolants, 93901318 SizeOfPredicates, 1 NumberOfNonLiveVariables, 13877 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 40 InterpolantComputations, 25 PerfectInterpolantSequences, 138052/141648 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...