/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:30:42,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:30:42,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:30:42,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-19 23:30:42,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:30:42,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:30:42,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:30:42,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:30:42,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:30:42,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:30:42,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:30:42,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:30:42,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:30:42,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:30:42,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:30:42,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:30:42,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:30:42,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:30:42,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:30:42,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:30:42,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 23:30:42,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:30:42,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:30:42,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:30:42,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:30:42,561 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:30:42,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:30:42,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:30:42,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:30:42,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:30:42,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:30:42,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:30:42,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:30:42,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:30:42,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:30:42,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:30:42,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:30:42,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:30:42,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:30:42,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:30:42,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:30:42,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:30:42,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:30:42,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:30:42,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:30:42,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:30:42,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:30:42,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:30:42,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:30:42,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:30:42,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:30:42,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:30:42,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:30:42,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:30:42,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:30:42,874 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:30:42,875 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-19 23:30:42,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39b8dea5/6facae0fda19439a92a199b570bf278f/FLAG665b8ecd8 [2020-07-19 23:30:43,566 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:30:43,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-07-19 23:30:43,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39b8dea5/6facae0fda19439a92a199b570bf278f/FLAG665b8ecd8 [2020-07-19 23:30:43,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d39b8dea5/6facae0fda19439a92a199b570bf278f [2020-07-19 23:30:43,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:30:43,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:30:43,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:30:43,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:30:43,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:30:43,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:30:43" (1/1) ... [2020-07-19 23:30:43,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125eb49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:43, skipping insertion in model container [2020-07-19 23:30:43,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:30:43" (1/1) ... [2020-07-19 23:30:43,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:30:43,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:30:44,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:30:44,502 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:30:44,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:30:44,682 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:30:44,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44 WrapperNode [2020-07-19 23:30:44,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:30:44,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:30:44,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:30:44,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:30:44,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (1/1) ... [2020-07-19 23:30:44,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (1/1) ... [2020-07-19 23:30:44,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (1/1) ... [2020-07-19 23:30:44,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (1/1) ... [2020-07-19 23:30:44,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (1/1) ... [2020-07-19 23:30:44,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (1/1) ... [2020-07-19 23:30:44,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (1/1) ... [2020-07-19 23:30:44,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:30:44,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:30:44,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:30:44,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:30:44,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (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 [2020-07-19 23:30:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:30:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:30:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 23:30:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:30:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 23:30:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:30:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:30:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 23:30:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:30:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:30:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:30:46,353 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:30:46,353 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:30:46,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:30:46 BoogieIcfgContainer [2020-07-19 23:30:46,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:30:46,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:30:46,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:30:46,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:30:46,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:30:43" (1/3) ... [2020-07-19 23:30:46,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:30:46, skipping insertion in model container [2020-07-19 23:30:46,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:30:44" (2/3) ... [2020-07-19 23:30:46,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:30:46, skipping insertion in model container [2020-07-19 23:30:46,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:30:46" (3/3) ... [2020-07-19 23:30:46,380 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-07-19 23:30:46,393 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:30:46,403 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:30:46,419 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:30:46,449 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:30:46,450 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:30:46,450 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:30:46,451 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:30:46,451 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:30:46,451 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:30:46,451 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:30:46,451 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:30:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-19 23:30:46,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-19 23:30:46,489 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:30:46,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:30:46,491 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:30:46,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:30:46,497 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-07-19 23:30:46,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:30:46,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033946230] [2020-07-19 23:30:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:30:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:46,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:30:46,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033946230] [2020-07-19 23:30:46,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:30:46,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 23:30:46,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530982271] [2020-07-19 23:30:46,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 23:30:46,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:30:46,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 23:30:46,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:30:46,975 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-07-19 23:30:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:30:48,583 INFO L93 Difference]: Finished difference Result 596 states and 1022 transitions. [2020-07-19 23:30:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 23:30:48,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2020-07-19 23:30:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:30:48,605 INFO L225 Difference]: With dead ends: 596 [2020-07-19 23:30:48,606 INFO L226 Difference]: Without dead ends: 302 [2020-07-19 23:30:48,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:30:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-07-19 23:30:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-07-19 23:30:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-07-19 23:30:48,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-07-19 23:30:48,701 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 56 [2020-07-19 23:30:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:30:48,702 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-07-19 23:30:48,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 23:30:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-07-19 23:30:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-19 23:30:48,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:30:48,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-19 23:30:48,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:30:48,710 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:30:48,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:30:48,711 INFO L82 PathProgramCache]: Analyzing trace with hash 371731122, now seen corresponding path program 1 times [2020-07-19 23:30:48,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:30:48,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281413038] [2020-07-19 23:30:48,712 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:30:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:30:48,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281413038] [2020-07-19 23:30:48,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113823147] [2020-07-19 23:30:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6aeb52cd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:30:49,106 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6aeb52cd issued 4 check-sat command(s) [2020-07-19 23:30:49,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:30:49,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:30:49,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:30:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:30:49,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:30:49,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-19 23:30:49,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186315945] [2020-07-19 23:30:49,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:30:49,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:30:49,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:30:49,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:30:49,188 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 3 states. [2020-07-19 23:30:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:30:49,915 INFO L93 Difference]: Finished difference Result 874 states and 1344 transitions. [2020-07-19 23:30:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:30:49,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-19 23:30:49,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:30:49,922 INFO L225 Difference]: With dead ends: 874 [2020-07-19 23:30:49,922 INFO L226 Difference]: Without dead ends: 584 [2020-07-19 23:30:49,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:30:49,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-19 23:30:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-19 23:30:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-19 23:30:49,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 857 transitions. [2020-07-19 23:30:49,960 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 857 transitions. Word has length 126 [2020-07-19 23:30:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:30:49,961 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 857 transitions. [2020-07-19 23:30:49,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:30:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 857 transitions. [2020-07-19 23:30:49,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-19 23:30:49,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:30:49,966 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-19 23:30:50,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-19 23:30:50,181 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:30:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:30:50,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1345148817, now seen corresponding path program 1 times [2020-07-19 23:30:50,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:30:50,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276476658] [2020-07-19 23:30:50,184 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:30:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:30:50,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276476658] [2020-07-19 23:30:50,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:30:50,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 23:30:50,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61509360] [2020-07-19 23:30:50,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 23:30:50,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:30:50,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 23:30:50,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:30:50,441 INFO L87 Difference]: Start difference. First operand 584 states and 857 transitions. Second operand 7 states. [2020-07-19 23:30:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:30:51,885 INFO L93 Difference]: Finished difference Result 1325 states and 1952 transitions. [2020-07-19 23:30:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:30:51,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-07-19 23:30:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:30:51,897 INFO L225 Difference]: With dead ends: 1325 [2020-07-19 23:30:51,897 INFO L226 Difference]: Without dead ends: 747 [2020-07-19 23:30:51,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:30:51,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-07-19 23:30:51,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 741. [2020-07-19 23:30:51,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-07-19 23:30:51,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1054 transitions. [2020-07-19 23:30:51,950 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1054 transitions. Word has length 133 [2020-07-19 23:30:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:30:51,951 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 1054 transitions. [2020-07-19 23:30:51,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 23:30:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1054 transitions. [2020-07-19 23:30:51,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-19 23:30:51,958 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:30:51,959 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:30:51,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 23:30:51,959 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:30:51,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:30:51,960 INFO L82 PathProgramCache]: Analyzing trace with hash 648501774, now seen corresponding path program 1 times [2020-07-19 23:30:51,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:30:51,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066406512] [2020-07-19 23:30:51,961 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:30:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 90 proven. 8 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-19 23:30:52,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066406512] [2020-07-19 23:30:52,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381460697] [2020-07-19 23:30:52,232 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b8e4d30 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:30:52,385 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b8e4d30 issued 4 check-sat command(s) [2020-07-19 23:30:52,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:30:52,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:30:52,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:30:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-19 23:30:52,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:30:52,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-19 23:30:52,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756007871] [2020-07-19 23:30:52,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:30:52,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:30:52,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:30:52,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:30:52,488 INFO L87 Difference]: Start difference. First operand 741 states and 1054 transitions. Second operand 3 states. [2020-07-19 23:30:53,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:30:53,144 INFO L93 Difference]: Finished difference Result 1329 states and 1985 transitions. [2020-07-19 23:30:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:30:53,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-07-19 23:30:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:30:53,153 INFO L225 Difference]: With dead ends: 1329 [2020-07-19 23:30:53,154 INFO L226 Difference]: Without dead ends: 1327 [2020-07-19 23:30:53,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:30:53,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2020-07-19 23:30:53,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1180. [2020-07-19 23:30:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-07-19 23:30:53,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1736 transitions. [2020-07-19 23:30:53,200 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1736 transitions. Word has length 203 [2020-07-19 23:30:53,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:30:53,201 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1736 transitions. [2020-07-19 23:30:53,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:30:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1736 transitions. [2020-07-19 23:30:53,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-19 23:30:53,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:30:53,207 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:30:53,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:30:53,411 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:30:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:30:53,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1400841554, now seen corresponding path program 1 times [2020-07-19 23:30:53,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:30:53,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271324543] [2020-07-19 23:30:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:30:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:53,747 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:30:53,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271324543] [2020-07-19 23:30:53,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682612821] [2020-07-19 23:30:53,749 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e510290 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 [2020-07-19 23:30:53,918 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e510290 issued 4 check-sat command(s) [2020-07-19 23:30:53,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:30:53,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:30:53,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:30:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:30:54,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:30:54,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-19 23:30:54,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184039472] [2020-07-19 23:30:54,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 23:30:54,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:30:54,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 23:30:54,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:30:54,059 INFO L87 Difference]: Start difference. First operand 1180 states and 1736 transitions. Second operand 10 states. [2020-07-19 23:30:58,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:30:58,172 INFO L93 Difference]: Finished difference Result 3668 states and 6214 transitions. [2020-07-19 23:30:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 23:30:58,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 251 [2020-07-19 23:30:58,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:30:58,197 INFO L225 Difference]: With dead ends: 3668 [2020-07-19 23:30:58,199 INFO L226 Difference]: Without dead ends: 2637 [2020-07-19 23:30:58,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2020-07-19 23:30:58,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2020-07-19 23:30:58,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1218. [2020-07-19 23:30:58,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-07-19 23:30:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1556 transitions. [2020-07-19 23:30:58,357 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1556 transitions. Word has length 251 [2020-07-19 23:30:58,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:30:58,361 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 1556 transitions. [2020-07-19 23:30:58,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 23:30:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1556 transitions. [2020-07-19 23:30:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-19 23:30:58,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:30:58,369 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:30:58,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:30:58,584 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:30:58,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:30:58,585 INFO L82 PathProgramCache]: Analyzing trace with hash 485230490, now seen corresponding path program 1 times [2020-07-19 23:30:58,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:30:58,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025921600] [2020-07-19 23:30:58,587 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:30:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:30:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 98 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-19 23:30:58,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025921600] [2020-07-19 23:30:58,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811085921] [2020-07-19 23:30:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c808bb8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:30:59,070 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c808bb8 issued 4 check-sat command(s) [2020-07-19 23:30:59,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:30:59,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 23:30:59,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:30:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-19 23:30:59,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:30:59,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-19 23:30:59,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040608957] [2020-07-19 23:30:59,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:30:59,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:30:59,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:30:59,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:30:59,222 INFO L87 Difference]: Start difference. First operand 1218 states and 1556 transitions. Second operand 5 states. [2020-07-19 23:31:00,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:31:00,240 INFO L93 Difference]: Finished difference Result 1995 states and 2572 transitions. [2020-07-19 23:31:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:31:00,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2020-07-19 23:31:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:31:00,247 INFO L225 Difference]: With dead ends: 1995 [2020-07-19 23:31:00,247 INFO L226 Difference]: Without dead ends: 1069 [2020-07-19 23:31:00,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:31:00,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2020-07-19 23:31:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 904. [2020-07-19 23:31:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-07-19 23:31:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1083 transitions. [2020-07-19 23:31:00,284 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1083 transitions. Word has length 257 [2020-07-19 23:31:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:31:00,284 INFO L479 AbstractCegarLoop]: Abstraction has 904 states and 1083 transitions. [2020-07-19 23:31:00,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:31:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1083 transitions. [2020-07-19 23:31:00,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-07-19 23:31:00,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:31:00,290 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:31:00,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:31:00,505 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:31:00,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:31:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash 740293395, now seen corresponding path program 1 times [2020-07-19 23:31:00,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:31:00,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990039560] [2020-07-19 23:31:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:31:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 102 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:31:01,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990039560] [2020-07-19 23:31:01,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384801064] [2020-07-19 23:31:01,133 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@191dfc39 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 [2020-07-19 23:31:01,278 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@191dfc39 issued 4 check-sat command(s) [2020-07-19 23:31:01,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:31:01,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:31:01,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:31:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:31:01,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:31:01,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2020-07-19 23:31:01,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408873767] [2020-07-19 23:31:01,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-19 23:31:01,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:31:01,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-19 23:31:01,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:31:01,400 INFO L87 Difference]: Start difference. First operand 904 states and 1083 transitions. Second operand 13 states. [2020-07-19 23:31:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:31:07,729 INFO L93 Difference]: Finished difference Result 3902 states and 5497 transitions. [2020-07-19 23:31:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-19 23:31:07,730 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 260 [2020-07-19 23:31:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:31:07,743 INFO L225 Difference]: With dead ends: 3902 [2020-07-19 23:31:07,744 INFO L226 Difference]: Without dead ends: 2035 [2020-07-19 23:31:07,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=1120, Unknown=0, NotChecked=0, Total=1406 [2020-07-19 23:31:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2020-07-19 23:31:07,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1228. [2020-07-19 23:31:07,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2020-07-19 23:31:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1467 transitions. [2020-07-19 23:31:07,809 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1467 transitions. Word has length 260 [2020-07-19 23:31:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:31:07,810 INFO L479 AbstractCegarLoop]: Abstraction has 1228 states and 1467 transitions. [2020-07-19 23:31:07,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-19 23:31:07,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1467 transitions. [2020-07-19 23:31:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-07-19 23:31:07,817 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:31:07,818 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:31:08,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-19 23:31:08,032 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:31:08,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:31:08,033 INFO L82 PathProgramCache]: Analyzing trace with hash -652536353, now seen corresponding path program 1 times [2020-07-19 23:31:08,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:31:08,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845423109] [2020-07-19 23:31:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:31:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 98 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-19 23:31:08,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845423109] [2020-07-19 23:31:08,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420687994] [2020-07-19 23:31:08,441 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e8e25ee No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:31:08,641 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e8e25ee issued 4 check-sat command(s) [2020-07-19 23:31:08,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:31:08,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 23:31:08,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:31:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-19 23:31:08,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:31:08,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-19 23:31:08,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813926281] [2020-07-19 23:31:08,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:31:08,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:31:08,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:31:08,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:31:08,766 INFO L87 Difference]: Start difference. First operand 1228 states and 1467 transitions. Second operand 5 states. [2020-07-19 23:31:09,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:31:09,558 INFO L93 Difference]: Finished difference Result 2281 states and 2719 transitions. [2020-07-19 23:31:09,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 23:31:09,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-07-19 23:31:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:31:09,567 INFO L225 Difference]: With dead ends: 2281 [2020-07-19 23:31:09,567 INFO L226 Difference]: Without dead ends: 1218 [2020-07-19 23:31:09,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:31:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2020-07-19 23:31:09,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1196. [2020-07-19 23:31:09,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1196 states. [2020-07-19 23:31:09,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1361 transitions. [2020-07-19 23:31:09,602 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1361 transitions. Word has length 270 [2020-07-19 23:31:09,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:31:09,602 INFO L479 AbstractCegarLoop]: Abstraction has 1196 states and 1361 transitions. [2020-07-19 23:31:09,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:31:09,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1361 transitions. [2020-07-19 23:31:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-07-19 23:31:09,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:31:09,609 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-19 23:31:09,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:31:09,824 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:31:09,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:31:09,824 INFO L82 PathProgramCache]: Analyzing trace with hash -685542405, now seen corresponding path program 1 times [2020-07-19 23:31:09,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:31:09,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070757295] [2020-07-19 23:31:09,825 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:31:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 96 proven. 8 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-07-19 23:31:10,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070757295] [2020-07-19 23:31:10,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060044171] [2020-07-19 23:31:10,183 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@783aaef 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 [2020-07-19 23:31:10,384 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@783aaef issued 4 check-sat command(s) [2020-07-19 23:31:10,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:31:10,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:31:10,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:31:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-19 23:31:10,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:31:10,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-07-19 23:31:10,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182383369] [2020-07-19 23:31:10,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:31:10,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:31:10,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:31:10,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:31:10,511 INFO L87 Difference]: Start difference. First operand 1196 states and 1361 transitions. Second operand 3 states. [2020-07-19 23:31:11,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:31:11,108 INFO L93 Difference]: Finished difference Result 2531 states and 2894 transitions. [2020-07-19 23:31:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:31:11,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-07-19 23:31:11,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:31:11,116 INFO L225 Difference]: With dead ends: 2531 [2020-07-19 23:31:11,116 INFO L226 Difference]: Without dead ends: 1337 [2020-07-19 23:31:11,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:31:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2020-07-19 23:31:11,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2020-07-19 23:31:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2020-07-19 23:31:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1518 transitions. [2020-07-19 23:31:11,151 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1518 transitions. Word has length 312 [2020-07-19 23:31:11,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:31:11,152 INFO L479 AbstractCegarLoop]: Abstraction has 1337 states and 1518 transitions. [2020-07-19 23:31:11,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:31:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1518 transitions. [2020-07-19 23:31:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-07-19 23:31:11,161 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:31:11,162 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-19 23:31:11,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:31:11,375 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:31:11,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:31:11,375 INFO L82 PathProgramCache]: Analyzing trace with hash -819512655, now seen corresponding path program 1 times [2020-07-19 23:31:11,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:31:11,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060299112] [2020-07-19 23:31:11,376 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@436e3766 [2020-07-19 23:31:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:31:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 150 proven. 3 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-07-19 23:31:11,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060299112] [2020-07-19 23:31:11,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191635767] [2020-07-19 23:31:11,759 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@304ff4dc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:31:11,939 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@304ff4dc issued 4 check-sat command(s) [2020-07-19 23:31:11,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:31:11,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 23:31:11,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:31:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-07-19 23:31:12,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:31:12,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-07-19 23:31:12,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350736282] [2020-07-19 23:31:12,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:31:12,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:31:12,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:31:12,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:31:12,060 INFO L87 Difference]: Start difference. First operand 1337 states and 1518 transitions. Second operand 3 states. [2020-07-19 23:31:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:31:12,615 INFO L93 Difference]: Finished difference Result 1337 states and 1518 transitions. [2020-07-19 23:31:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:31:12,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 367 [2020-07-19 23:31:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:31:12,617 INFO L225 Difference]: With dead ends: 1337 [2020-07-19 23:31:12,617 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 23:31:12,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:31:12,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 23:31:12,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 23:31:12,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 23:31:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 23:31:12,622 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2020-07-19 23:31:12,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:31:12,622 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 23:31:12,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:31:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 23:31:12,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 23:31:12,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 23:31:12,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 23:31:13,262 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 41 [2020-07-19 23:31:14,017 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 34 [2020-07-19 23:31:14,198 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-07-19 23:31:14,335 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-07-19 23:31:14,339 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:31:14,339 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-19 23:31:14,339 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:31:14,339 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-19 23:31:14,339 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-19 23:31:14,340 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-19 23:31:14,341 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-19 23:31:14,341 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-19 23:31:14,341 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-19 23:31:14,341 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-19 23:31:14,341 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-19 23:31:14,341 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-19 23:31:14,341 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-19 23:31:14,342 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-19 23:31:14,343 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-19 23:31:14,344 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,345 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-19 23:31:14,346 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,347 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,348 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-19 23:31:14,349 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,350 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-19 23:31:14,351 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-19 23:31:14,352 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,353 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-19 23:31:14,354 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-19 23:31:14,355 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-19 23:31:14,355 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a19~0)| 9))) (.cse0 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or (not (<= |old(~a19~0)| 6)) .cse0) (or .cse0 (not (<= |old(~a10~0)| 2))) (or (not (<= 4 |old(~a10~0)|)) .cse1 .cse0) (or .cse1 (and (not (<= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|))) .cse0))) [2020-07-19 23:31:14,355 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-19 23:31:14,355 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-19 23:31:14,355 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-19 23:31:14,355 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,355 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,355 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-19 23:31:14,356 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-19 23:31:14,357 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-19 23:31:14,358 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-19 23:31:14,359 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-19 23:31:14,360 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-19 23:31:14,361 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-19 23:31:14,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:31:14,362 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-19 23:31:14,362 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 23:31:14,362 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:31:14,362 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-19 23:31:14,362 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-19 23:31:14,363 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (<= ~a10~0 2) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-19 23:31:14,363 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-19 23:31:14,363 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-19 23:31:14,363 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a19~0 9) (or (<= 9 ~a19~0) (<= 23 ~a1~0))) (not (<= |old(~a1~0)| 23)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (<= ~a10~0 2) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a19~0 8) (<= 4 ~a10~0))) [2020-07-19 23:31:14,363 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-19 23:31:14,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:31:14 BoogieIcfgContainer [2020-07-19 23:31:14,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:31:14,386 INFO L168 Benchmark]: Toolchain (without parser) took 30562.87 ms. Allocated memory was 146.8 MB in the beginning and 616.6 MB in the end (delta: 469.8 MB). Free memory was 102.6 MB in the beginning and 199.0 MB in the end (delta: -96.4 MB). Peak memory consumption was 373.4 MB. Max. memory is 7.1 GB. [2020-07-19 23:31:14,387 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.8 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 23:31:14,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.43 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 102.4 MB in the beginning and 173.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-07-19 23:31:14,389 INFO L168 Benchmark]: Boogie Preprocessor took 102.07 ms. Allocated memory is still 207.6 MB. Free memory was 173.2 MB in the beginning and 169.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 23:31:14,390 INFO L168 Benchmark]: RCFGBuilder took 1581.73 ms. Allocated memory was 207.6 MB in the beginning and 239.6 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 181.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. [2020-07-19 23:31:14,390 INFO L168 Benchmark]: TraceAbstraction took 28015.66 ms. Allocated memory was 239.6 MB in the beginning and 616.6 MB in the end (delta: 377.0 MB). Free memory was 181.1 MB in the beginning and 199.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 359.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:31:14,394 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.8 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 857.43 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 102.4 MB in the beginning and 173.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.07 ms. Allocated memory is still 207.6 MB. Free memory was 173.2 MB in the beginning and 169.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1581.73 ms. Allocated memory was 207.6 MB in the beginning and 239.6 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 181.1 MB in the end (delta: -12.8 MB). Peak memory consumption was 80.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28015.66 ms. Allocated memory was 239.6 MB in the beginning and 616.6 MB in the end (delta: 377.0 MB). Free memory was 181.1 MB in the beginning and 199.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 359.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((!(23 <= \old(a1)) || (a19 <= 9 && (9 <= a19 || 23 <= a1))) || !(\old(a1) <= 23)) || a19 <= 6) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || !(0 == a12)) || a10 <= 2) || !(14 == a4)) || !(\old(a19) <= 9)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.3s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 710 SDtfs, 4107 SDslu, 478 SDs, 0 SdLazy, 11114 SolverSat, 1810 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2224 GetRequests, 2115 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1337occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 2572 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 87 PreInvPairs, 155 NumberOfFragments, 273 HoareAnnotationTreeSize, 87 FomulaSimplifications, 44425 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2503 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 4281 NumberOfCodeBlocks, 4281 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 4263 ConstructedInterpolants, 0 QuantifiedInterpolants, 2090888 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3442 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 2904/3165 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...