/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:27:25,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:27:25,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:27:25,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:27:25,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:27:25,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:27:25,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:27:25,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:27:25,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:27:25,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:27:25,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:27:25,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:27:25,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:27:25,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:27:25,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:27:25,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:27:25,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:27:25,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:27:25,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:27:25,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:27:25,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:27:25,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:27:25,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:27:25,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:27:25,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:27:25,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:27:25,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:27:25,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:27:25,511 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 [2020-07-21 11:27:25,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:27:25,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:27:25,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:27:25,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:27:25,535 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:27:25,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:27:25,535 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:27:25,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:27:25,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:27:25,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:27:25,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:27:25,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:27:25,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:27:25,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:27:25,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:27:25,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:27:25,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:27:25,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:27:25,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:27:25,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:27:25,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:27:25,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:27:25,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:27:25,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:27:25,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:27:25,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:27:25,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:25,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:27:25,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:27:25,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:27:25,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:27:25,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:27:25,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:27:25,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:27:25,847 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:27:25,848 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 11:27:25,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e8f7ac2/1760475a7f1240808f196bb4829d0e7e/FLAG1afea5382 [2020-07-21 11:27:26,485 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:27:26,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 11:27:26,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e8f7ac2/1760475a7f1240808f196bb4829d0e7e/FLAG1afea5382 [2020-07-21 11:27:26,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91e8f7ac2/1760475a7f1240808f196bb4829d0e7e [2020-07-21 11:27:26,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:27:26,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:27:26,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:27:26,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:27:26,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:27:26,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:27:26" (1/1) ... [2020-07-21 11:27:26,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5877701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:26, skipping insertion in model container [2020-07-21 11:27:26,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:27:26" (1/1) ... [2020-07-21 11:27:26,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:27:26,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:27:27,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:27:27,490 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:27:27,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:27:27,755 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:27:27,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27 WrapperNode [2020-07-21 11:27:27,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:27:27,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:27:27,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:27:27,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:27:27,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (1/1) ... [2020-07-21 11:27:27,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (1/1) ... [2020-07-21 11:27:27,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (1/1) ... [2020-07-21 11:27:27,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (1/1) ... [2020-07-21 11:27:27,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (1/1) ... [2020-07-21 11:27:27,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (1/1) ... [2020-07-21 11:27:27,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (1/1) ... [2020-07-21 11:27:27,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:27:27,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:27:27,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:27:27,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:27:27,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (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 [2020-07-21 11:27:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:27:27,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:27:27,947 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:27:27,947 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:27:27,947 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:27:27,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:27:27,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:27:27,948 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:27:27,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:27:27,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:27:27,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:27:29,131 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:27:29,131 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:27:29,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:27:29 BoogieIcfgContainer [2020-07-21 11:27:29,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:27:29,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:27:29,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:27:29,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:27:29,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:27:26" (1/3) ... [2020-07-21 11:27:29,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af02d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:27:29, skipping insertion in model container [2020-07-21 11:27:29,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:27" (2/3) ... [2020-07-21 11:27:29,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af02d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:27:29, skipping insertion in model container [2020-07-21 11:27:29,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:27:29" (3/3) ... [2020-07-21 11:27:29,147 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-21 11:27:29,158 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:27:29,166 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:27:29,181 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:27:29,207 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:27:29,208 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:27:29,208 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:27:29,208 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:27:29,208 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:27:29,208 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:27:29,208 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:27:29,209 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:27:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:27:29,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 11:27:29,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:29,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:29,250 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:29,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-21 11:27:29,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:29,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057590353] [2020-07-21 11:27:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:29,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:27:29,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:29,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:29,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057590353] [2020-07-21 11:27:29,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:29,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:29,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052146847] [2020-07-21 11:27:29,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:29,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:29,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:29,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:29,618 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:27:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:30,538 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 11:27:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:30,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-21 11:27:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:30,560 INFO L225 Difference]: With dead ends: 615 [2020-07-21 11:27:30,560 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 11:27:30,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:30,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 11:27:30,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 11:27:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 11:27:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 11:27:30,657 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 142 [2020-07-21 11:27:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:30,663 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 11:27:30,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 11:27:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 11:27:30,678 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:30,678 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:30,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:30,880 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:30,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:30,881 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-07-21 11:27:30,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:30,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413074411] [2020-07-21 11:27:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:30,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:27:30,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:31,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:31,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413074411] [2020-07-21 11:27:31,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:31,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:27:31,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813220725] [2020-07-21 11:27:31,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:27:31,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:31,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:27:31,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:27:31,082 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-21 11:27:31,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:31,552 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-21 11:27:31,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:27:31,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-07-21 11:27:31,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:31,558 INFO L225 Difference]: With dead ends: 629 [2020-07-21 11:27:31,558 INFO L226 Difference]: Without dead ends: 318 [2020-07-21 11:27:31,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:31,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-21 11:27:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-21 11:27:31,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-21 11:27:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-21 11:27:31,597 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 157 [2020-07-21 11:27:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:31,598 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-21 11:27:31,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-21 11:27:31,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 11:27:31,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:31,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:31,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:31,803 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:31,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-07-21 11:27:31,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:31,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663685166] [2020-07-21 11:27:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:31,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:27:31,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:31,969 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:31,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:31,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663685166] [2020-07-21 11:27:31,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:31,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:27:31,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227900797] [2020-07-21 11:27:31,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:27:31,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:31,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:27:31,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:27:31,995 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-21 11:27:32,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:32,899 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-21 11:27:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:32,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-07-21 11:27:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:32,907 INFO L225 Difference]: With dead ends: 923 [2020-07-21 11:27:32,907 INFO L226 Difference]: Without dead ends: 621 [2020-07-21 11:27:32,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:27:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-21 11:27:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 459. [2020-07-21 11:27:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-21 11:27:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 601 transitions. [2020-07-21 11:27:32,931 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 601 transitions. Word has length 164 [2020-07-21 11:27:32,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:32,932 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 601 transitions. [2020-07-21 11:27:32,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:32,932 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 601 transitions. [2020-07-21 11:27:32,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 11:27:32,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:32,935 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:33,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:33,149 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:33,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:33,150 INFO L82 PathProgramCache]: Analyzing trace with hash 612982551, now seen corresponding path program 1 times [2020-07-21 11:27:33,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:33,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41006772] [2020-07-21 11:27:33,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:33,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:33,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:33,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:33,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41006772] [2020-07-21 11:27:33,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:33,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:33,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587084980] [2020-07-21 11:27:33,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:33,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:33,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:33,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:33,448 INFO L87 Difference]: Start difference. First operand 459 states and 601 transitions. Second operand 6 states. [2020-07-21 11:27:34,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:34,303 INFO L93 Difference]: Finished difference Result 1075 states and 1439 transitions. [2020-07-21 11:27:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:34,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 173 [2020-07-21 11:27:34,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:34,309 INFO L225 Difference]: With dead ends: 1075 [2020-07-21 11:27:34,309 INFO L226 Difference]: Without dead ends: 622 [2020-07-21 11:27:34,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 340 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:34,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-21 11:27:34,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 612. [2020-07-21 11:27:34,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-07-21 11:27:34,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 802 transitions. [2020-07-21 11:27:34,334 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 802 transitions. Word has length 173 [2020-07-21 11:27:34,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:34,334 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 802 transitions. [2020-07-21 11:27:34,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:34,335 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 802 transitions. [2020-07-21 11:27:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-21 11:27:34,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:34,338 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:34,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:34,552 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:34,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:34,553 INFO L82 PathProgramCache]: Analyzing trace with hash -393389681, now seen corresponding path program 1 times [2020-07-21 11:27:34,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:34,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980473165] [2020-07-21 11:27:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:34,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:34,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:34,737 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:27:34,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:34,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980473165] [2020-07-21 11:27:34,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:34,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:34,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169397401] [2020-07-21 11:27:34,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:34,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:34,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:34,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:34,739 INFO L87 Difference]: Start difference. First operand 612 states and 802 transitions. Second operand 3 states. [2020-07-21 11:27:35,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:35,316 INFO L93 Difference]: Finished difference Result 1667 states and 2203 transitions. [2020-07-21 11:27:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:35,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-07-21 11:27:35,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:35,325 INFO L225 Difference]: With dead ends: 1667 [2020-07-21 11:27:35,325 INFO L226 Difference]: Without dead ends: 1061 [2020-07-21 11:27:35,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:35,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-07-21 11:27:35,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1060. [2020-07-21 11:27:35,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-07-21 11:27:35,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1337 transitions. [2020-07-21 11:27:35,363 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1337 transitions. Word has length 177 [2020-07-21 11:27:35,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:35,364 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1337 transitions. [2020-07-21 11:27:35,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1337 transitions. [2020-07-21 11:27:35,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 11:27:35,370 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:35,370 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:35,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:35,584 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:35,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:35,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1336045319, now seen corresponding path program 1 times [2020-07-21 11:27:35,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:35,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115553987] [2020-07-21 11:27:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:35,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:35,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:35,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:35,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115553987] [2020-07-21 11:27:35,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:35,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:27:35,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604804980] [2020-07-21 11:27:35,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:27:35,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:35,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:27:35,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:27:35,819 INFO L87 Difference]: Start difference. First operand 1060 states and 1337 transitions. Second operand 7 states. [2020-07-21 11:27:37,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:37,416 INFO L93 Difference]: Finished difference Result 3296 states and 4321 transitions. [2020-07-21 11:27:37,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:27:37,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-21 11:27:37,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:37,440 INFO L225 Difference]: With dead ends: 3296 [2020-07-21 11:27:37,440 INFO L226 Difference]: Without dead ends: 2242 [2020-07-21 11:27:37,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:37,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2020-07-21 11:27:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2092. [2020-07-21 11:27:37,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2020-07-21 11:27:37,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2524 transitions. [2020-07-21 11:27:37,526 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2524 transitions. Word has length 181 [2020-07-21 11:27:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:37,526 INFO L479 AbstractCegarLoop]: Abstraction has 2092 states and 2524 transitions. [2020-07-21 11:27:37,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:27:37,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2524 transitions. [2020-07-21 11:27:37,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-21 11:27:37,535 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:37,535 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:37,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:37,751 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:37,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash 441214513, now seen corresponding path program 1 times [2020-07-21 11:27:37,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:37,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872517687] [2020-07-21 11:27:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:37,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:37,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:37,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:37,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872517687] [2020-07-21 11:27:37,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:37,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:27:37,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115418424] [2020-07-21 11:27:37,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:27:37,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:37,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:27:37,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:27:37,965 INFO L87 Difference]: Start difference. First operand 2092 states and 2524 transitions. Second operand 7 states. [2020-07-21 11:27:38,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:38,871 INFO L93 Difference]: Finished difference Result 4635 states and 5681 transitions. [2020-07-21 11:27:38,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:27:38,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-21 11:27:38,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:38,884 INFO L225 Difference]: With dead ends: 4635 [2020-07-21 11:27:38,884 INFO L226 Difference]: Without dead ends: 2553 [2020-07-21 11:27:38,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:38,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2020-07-21 11:27:38,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2110. [2020-07-21 11:27:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2110 states. [2020-07-21 11:27:38,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 2551 transitions. [2020-07-21 11:27:38,949 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 2551 transitions. Word has length 193 [2020-07-21 11:27:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:38,949 INFO L479 AbstractCegarLoop]: Abstraction has 2110 states and 2551 transitions. [2020-07-21 11:27:38,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:27:38,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 2551 transitions. [2020-07-21 11:27:38,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-21 11:27:38,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:38,957 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:39,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:39,172 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:39,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:39,173 INFO L82 PathProgramCache]: Analyzing trace with hash 2102913996, now seen corresponding path program 1 times [2020-07-21 11:27:39,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:39,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647220666] [2020-07-21 11:27:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:39,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:39,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 11:27:39,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:39,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647220666] [2020-07-21 11:27:39,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:39,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:39,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539514121] [2020-07-21 11:27:39,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:39,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:39,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:39,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:39,319 INFO L87 Difference]: Start difference. First operand 2110 states and 2551 transitions. Second operand 3 states. [2020-07-21 11:27:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:39,911 INFO L93 Difference]: Finished difference Result 3780 states and 4548 transitions. [2020-07-21 11:27:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:39,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-21 11:27:39,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:39,925 INFO L225 Difference]: With dead ends: 3780 [2020-07-21 11:27:39,925 INFO L226 Difference]: Without dead ends: 2110 [2020-07-21 11:27:39,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:39,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2020-07-21 11:27:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1964. [2020-07-21 11:27:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1964 states. [2020-07-21 11:27:40,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2295 transitions. [2020-07-21 11:27:40,000 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2295 transitions. Word has length 201 [2020-07-21 11:27:40,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:40,001 INFO L479 AbstractCegarLoop]: Abstraction has 1964 states and 2295 transitions. [2020-07-21 11:27:40,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:40,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2295 transitions. [2020-07-21 11:27:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 11:27:40,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:40,013 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:40,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:40,227 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:40,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:40,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-07-21 11:27:40,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:40,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101819331] [2020-07-21 11:27:40,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:40,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:27:40,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:40,455 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:40,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:40,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101819331] [2020-07-21 11:27:40,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:40,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:40,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273142669] [2020-07-21 11:27:40,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:40,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:40,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:40,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:40,559 INFO L87 Difference]: Start difference. First operand 1964 states and 2295 transitions. Second operand 6 states. [2020-07-21 11:27:41,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:41,245 INFO L93 Difference]: Finished difference Result 3943 states and 4694 transitions. [2020-07-21 11:27:41,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:41,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-21 11:27:41,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:41,255 INFO L225 Difference]: With dead ends: 3943 [2020-07-21 11:27:41,255 INFO L226 Difference]: Without dead ends: 1829 [2020-07-21 11:27:41,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:41,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2020-07-21 11:27:41,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1803. [2020-07-21 11:27:41,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-07-21 11:27:41,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1954 transitions. [2020-07-21 11:27:41,312 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1954 transitions. Word has length 221 [2020-07-21 11:27:41,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:41,312 INFO L479 AbstractCegarLoop]: Abstraction has 1803 states and 1954 transitions. [2020-07-21 11:27:41,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:41,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1954 transitions. [2020-07-21 11:27:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-21 11:27:41,319 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:41,320 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:41,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:41,533 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:41,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:41,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-07-21 11:27:41,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:41,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115594875] [2020-07-21 11:27:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:41,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:41,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:27:41,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:27:41,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115594875] [2020-07-21 11:27:41,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:41,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:41,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102224473] [2020-07-21 11:27:41,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:41,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:41,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:41,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:41,884 INFO L87 Difference]: Start difference. First operand 1803 states and 1954 transitions. Second operand 6 states. [2020-07-21 11:27:42,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:42,701 INFO L93 Difference]: Finished difference Result 4188 states and 4550 transitions. [2020-07-21 11:27:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:27:42,702 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-21 11:27:42,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:42,710 INFO L225 Difference]: With dead ends: 4188 [2020-07-21 11:27:42,711 INFO L226 Difference]: Without dead ends: 1807 [2020-07-21 11:27:42,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:42,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-21 11:27:42,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1363. [2020-07-21 11:27:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-07-21 11:27:42,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1441 transitions. [2020-07-21 11:27:42,751 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1441 transitions. Word has length 247 [2020-07-21 11:27:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:42,752 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1441 transitions. [2020-07-21 11:27:42,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1441 transitions. [2020-07-21 11:27:42,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 11:27:42,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:42,759 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:42,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:42,973 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:42,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:42,974 INFO L82 PathProgramCache]: Analyzing trace with hash 246093775, now seen corresponding path program 1 times [2020-07-21 11:27:42,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:42,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140257379] [2020-07-21 11:27:42,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:43,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:43,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 11:27:43,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 11:27:43,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140257379] [2020-07-21 11:27:43,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:43,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:43,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111854188] [2020-07-21 11:27:43,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:43,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:43,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:43,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:43,416 INFO L87 Difference]: Start difference. First operand 1363 states and 1441 transitions. Second operand 6 states. [2020-07-21 11:27:44,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:44,250 INFO L93 Difference]: Finished difference Result 2737 states and 2911 transitions. [2020-07-21 11:27:44,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:27:44,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-21 11:27:44,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:44,257 INFO L225 Difference]: With dead ends: 2737 [2020-07-21 11:27:44,257 INFO L226 Difference]: Without dead ends: 1380 [2020-07-21 11:27:44,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-07-21 11:27:44,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1367. [2020-07-21 11:27:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-21 11:27:44,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1429 transitions. [2020-07-21 11:27:44,308 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1429 transitions. Word has length 282 [2020-07-21 11:27:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:44,309 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1429 transitions. [2020-07-21 11:27:44,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1429 transitions. [2020-07-21 11:27:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-21 11:27:44,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:44,327 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:44,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:44,541 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:44,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:44,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-07-21 11:27:44,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:44,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77054528] [2020-07-21 11:27:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:44,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:27:44,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-07-21 11:27:44,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:44,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77054528] [2020-07-21 11:27:44,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:44,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:44,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141672944] [2020-07-21 11:27:44,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:44,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:44,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:44,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:44,962 INFO L87 Difference]: Start difference. First operand 1367 states and 1429 transitions. Second operand 3 states. [2020-07-21 11:27:45,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:45,546 INFO L93 Difference]: Finished difference Result 3302 states and 3466 transitions. [2020-07-21 11:27:45,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:45,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2020-07-21 11:27:45,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:45,548 INFO L225 Difference]: With dead ends: 3302 [2020-07-21 11:27:45,548 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:27:45,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:45,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:27:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:27:45,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:27:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:27:45,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-07-21 11:27:45,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:45,560 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:27:45,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:27:45,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:27:45,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:45,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:27:46,289 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 86 [2020-07-21 11:27:46,989 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 74 [2020-07-21 11:27:47,470 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-07-21 11:27:47,904 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2020-07-21 11:27:47,909 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:27:47,909 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 11:27:47,909 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:27:47,909 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,909 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:27:47,910 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,911 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:27:47,912 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:27:47,913 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,914 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,914 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,914 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,914 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,914 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-21 11:27:47,914 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:27:47,914 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:27:47,915 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:27:47,916 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:27:47,917 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:27:47,918 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:27:47,919 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,920 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:27:47,921 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:27:47,922 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,923 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:27:47,924 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,925 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:27:47,926 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,927 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,928 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (<= ~a17~0 |old(~a17~0)|)) (.cse18 (<= ~a28~0 9)) (.cse9 (= ~a19~0 |old(~a19~0)|)) (.cse10 (<= |old(~a28~0)| ~a28~0))) (let ((.cse4 (and .cse7 .cse18 .cse9 .cse10)) (.cse5 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse8 (<= ~a28~0 10)) (.cse12 (not (<= 9 |old(~a28~0)|))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse13 (= 1 ~a11~0)) (.cse19 (not (<= |old(~a28~0)| 7))) (.cse14 (not (= 1 |old(~a11~0)|))) (.cse6 (not (<= 10 |old(~a28~0)|))) (.cse16 (<= ~a28~0 |old(~a28~0)|)) (.cse11 (not (= 1 |old(~a19~0)|))) (.cse17 (<= ~a17~0 8)) (.cse21 (<= 8 ~a17~0)) (.cse15 (not (<= |old(~a28~0)| 8))) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse3 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse6 .cse3 (and .cse7 .cse8 .cse9 .cse10)) (or .cse11 .cse12 .cse0 .cse3 .cse4) (or .cse11 .cse5 .cse2 .cse6 (and .cse7 .cse13 .cse8 .cse9 .cse10) .cse14) (or .cse15 (and .cse16 .cse17 .cse9 .cse10) .cse1 .cse3) (or .cse11 .cse12 .cse13 .cse0 .cse3 .cse14) (or (and .cse13 .cse17 .cse18 .cse9 .cse10) .cse0 .cse1 .cse3 .cse14) (or .cse11 .cse19 .cse3 (and .cse7 .cse16 .cse9 .cse10)) (or .cse11 .cse13 .cse19 .cse3 .cse14) (or .cse11 .cse20 .cse6 (and .cse16 .cse17 .cse21 .cse9 .cse10) .cse3) (or .cse11 (and .cse17 .cse21 (<= ~a28~0 8) .cse9 .cse10) .cse15 .cse20 .cse3)))) [2020-07-21 11:27:47,928 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,928 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,928 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,928 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:27:47,928 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:27:47,929 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:27:47,930 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,931 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:27:47,932 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 11:27:47,933 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:27:47,933 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:27:47,933 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0))) [2020-07-21 11:27:47,934 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= 1 ~a11~0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 (<= 10 ~a28~0) .cse3) (and .cse0 .cse1 (<= ~a28~0 9) .cse4) (and .cse2 .cse5 .cse3) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse1 .cse2 .cse3) (and .cse1 (<= ~a28~0 8) .cse3) (and .cse0 .cse6 .cse2 .cse5 .cse4) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:27:47,934 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:27:47,934 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:27:47,934 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (<= ~a19~0 0)) (.cse6 (= 1 ~a11~0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 (<= 10 ~a28~0) .cse3) (and .cse0 .cse1 (<= ~a28~0 9) .cse4) (and .cse2 .cse5 .cse3) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse1 .cse2 .cse3) (and .cse1 (<= ~a28~0 8) .cse3) (and .cse0 .cse6 .cse2 .cse5 .cse4) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:27:47,934 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:27:47,934 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:27:47,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:27:47 BoogieIcfgContainer [2020-07-21 11:27:47,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:27:47,956 INFO L168 Benchmark]: Toolchain (without parser) took 21167.18 ms. Allocated memory was 136.8 MB in the beginning and 577.2 MB in the end (delta: 440.4 MB). Free memory was 100.0 MB in the beginning and 414.4 MB in the end (delta: -314.3 MB). Peak memory consumption was 400.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:47,957 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 11:27:47,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 963.40 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 99.6 MB in the beginning and 170.0 MB in the end (delta: -70.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:47,959 INFO L168 Benchmark]: Boogie Preprocessor took 98.40 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 164.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:47,959 INFO L168 Benchmark]: RCFGBuilder took 1283.05 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 164.9 MB in the beginning and 179.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:47,960 INFO L168 Benchmark]: TraceAbstraction took 18815.50 ms. Allocated memory was 232.8 MB in the beginning and 577.2 MB in the end (delta: 344.5 MB). Free memory was 179.9 MB in the beginning and 414.4 MB in the end (delta: -234.5 MB). Peak memory consumption was 384.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:47,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 963.40 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 99.6 MB in the beginning and 170.0 MB in the end (delta: -70.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.40 ms. Allocated memory is still 202.4 MB. Free memory was 170.0 MB in the beginning and 164.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.05 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 164.9 MB in the beginning and 179.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18815.50 ms. Allocated memory was 232.8 MB in the beginning and 577.2 MB in the end (delta: 344.5 MB). Free memory was 179.9 MB in the beginning and 414.4 MB in the end (delta: -234.5 MB). Peak memory consumption was 384.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 <= 0)) || (((1 == a19 && a17 <= 8) && a28 <= 9) && 9 <= a28)) || ((a28 <= 10 && a17 <= 7) && a19 <= 0)) || !(8 <= \old(a17))) || (((1 == a11 && a17 <= 8) && a28 <= 10) && a19 <= 0)) || ((a17 <= 8 && a28 <= 8) && a19 <= 0)) || ((((1 == a19 && 1 == a11) && a28 <= 10) && a17 <= 7) && 9 <= a28)) || ((1 == a19 && a17 <= 8) && a28 <= 7)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.5s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 902 SDtfs, 3641 SDslu, 506 SDs, 0 SdLazy, 7428 SolverSat, 1149 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3759 GetRequests, 3695 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2110occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1405 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 112 PreInvPairs, 150 NumberOfFragments, 607 HoareAnnotationTreeSize, 112 FomulaSimplifications, 10619 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3947 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2443 NumberOfCodeBlocks, 2443 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3722 ConstructedInterpolants, 0 QuantifiedInterpolants, 1505080 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5473 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 1565/1623 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...