/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:52:28,347 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 13:52:28,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:52:28,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:52:28,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:52:28,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:52:28,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:52:28,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:52:28,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:52:28,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:52:28,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:52:28,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:52:28,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:52:28,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:52:28,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:52:28,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:52:28,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:52:28,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:52:28,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:52:28,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:52:28,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:52:28,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:52:28,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:52:28,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:52:28,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:52:28,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:52:28,410 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 13:52:28,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:52:28,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:52:28,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:52:28,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:52:28,426 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:52:28,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:52:28,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:52:28,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:52:28,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:52:28,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:52:28,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:52:28,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:52:28,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:52:28,428 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:52:28,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:52:28,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:52:28,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:52:28,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:52:28,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:52:28,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:52:28,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:52:28,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:52:28,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:52:28,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:52:28,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:52:28,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:52:28,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:28,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:52:28,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:52:28,431 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:52:28,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:52:28,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:52:28,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:52:28,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:52:28,732 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:52:28,732 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 13:52:28,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64eb7596d/e3a232872186483182d00da0e4c0b156/FLAG7b3e003ed [2020-07-21 13:52:29,418 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:52:29,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-07-21 13:52:29,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64eb7596d/e3a232872186483182d00da0e4c0b156/FLAG7b3e003ed [2020-07-21 13:52:29,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64eb7596d/e3a232872186483182d00da0e4c0b156 [2020-07-21 13:52:29,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:52:29,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:52:29,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:29,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:52:29,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:52:29,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:29" (1/1) ... [2020-07-21 13:52:29,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74759e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:29, skipping insertion in model container [2020-07-21 13:52:29,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:29" (1/1) ... [2020-07-21 13:52:29,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:52:29,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:52:30,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:30,321 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:52:30,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:30,511 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:52:30,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30 WrapperNode [2020-07-21 13:52:30,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:30,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:52:30,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:52:30,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:52:30,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (1/1) ... [2020-07-21 13:52:30,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (1/1) ... [2020-07-21 13:52:30,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (1/1) ... [2020-07-21 13:52:30,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (1/1) ... [2020-07-21 13:52:30,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (1/1) ... [2020-07-21 13:52:30,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (1/1) ... [2020-07-21 13:52:30,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (1/1) ... [2020-07-21 13:52:30,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:52:30,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:52:30,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:52:30,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:52:30,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (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 13:52:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:52:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:52:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:52:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:52:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:52:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:52:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:52:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:52:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:52:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:52:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:52:31,887 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:52:31,887 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:52:31,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:31 BoogieIcfgContainer [2020-07-21 13:52:31,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:52:31,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:52:31,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:52:31,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:52:31,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:52:29" (1/3) ... [2020-07-21 13:52:31,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@929902c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:31, skipping insertion in model container [2020-07-21 13:52:31,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:30" (2/3) ... [2020-07-21 13:52:31,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@929902c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:31, skipping insertion in model container [2020-07-21 13:52:31,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:31" (3/3) ... [2020-07-21 13:52:31,908 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-07-21 13:52:31,920 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:52:31,931 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:52:31,945 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:52:31,980 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:52:31,981 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:52:31,981 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:52:31,981 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:52:31,981 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:52:31,982 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:52:31,982 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:52:31,982 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:52:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:52:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 13:52:32,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:32,032 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] [2020-07-21 13:52:32,032 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:32,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:32,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1960329542, now seen corresponding path program 1 times [2020-07-21 13:52:32,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:32,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681752080] [2020-07-21 13:52:32,047 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:32,259 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:32,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:32,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:32,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:32,401 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 13:52:32,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:32,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681752080] [2020-07-21 13:52:32,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:32,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:32,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48152920] [2020-07-21 13:52:32,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:32,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:32,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:32,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:32,431 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:52:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:33,416 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 13:52:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:33,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-21 13:52:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:33,435 INFO L225 Difference]: With dead ends: 619 [2020-07-21 13:52:33,435 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 13:52:33,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 13:52:33,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 13:52:33,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 13:52:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 13:52:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 13:52:33,517 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 116 [2020-07-21 13:52:33,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:33,518 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 13:52:33,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:33,519 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 13:52:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 13:52:33,524 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:33,524 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:33,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:33,738 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:33,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:33,739 INFO L82 PathProgramCache]: Analyzing trace with hash 539238327, now seen corresponding path program 1 times [2020-07-21 13:52:33,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:33,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692040171] [2020-07-21 13:52:33,741 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:33,852 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:33,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:33,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:33,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:33,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:33,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692040171] [2020-07-21 13:52:33,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:33,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:33,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595538552] [2020-07-21 13:52:33,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:33,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:33,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:33,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:33,952 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 13:52:34,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:34,569 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 13:52:34,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:34,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 13:52:34,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:34,580 INFO L225 Difference]: With dead ends: 782 [2020-07-21 13:52:34,580 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 13:52:34,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 13:52:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 13:52:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 13:52:34,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 13:52:34,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 13:52:34,631 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 125 [2020-07-21 13:52:34,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:34,634 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 13:52:34,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 13:52:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 13:52:34,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:34,642 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 13:52:34,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:34,844 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:34,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1524654879, now seen corresponding path program 1 times [2020-07-21 13:52:34,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:34,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278342850] [2020-07-21 13:52:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:34,964 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:34,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:34,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 13:52:34,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:35,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:35,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278342850] [2020-07-21 13:52:35,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:52:35,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 13:52:35,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278197892] [2020-07-21 13:52:35,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:52:35,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:35,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:52:35,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:35,149 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-21 13:52:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:35,881 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-21 13:52:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:52:35,881 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-07-21 13:52:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:35,888 INFO L225 Difference]: With dead ends: 1386 [2020-07-21 13:52:35,888 INFO L226 Difference]: Without dead ends: 923 [2020-07-21 13:52:35,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 266 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:35,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-21 13:52:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-21 13:52:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-21 13:52:35,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-21 13:52:35,928 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 137 [2020-07-21 13:52:35,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:35,929 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-21 13:52:35,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:52:35,929 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-21 13:52:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 13:52:35,934 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:35,934 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 13:52:36,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:36,149 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:36,150 INFO L82 PathProgramCache]: Analyzing trace with hash -689459332, now seen corresponding path program 1 times [2020-07-21 13:52:36,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:36,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159447158] [2020-07-21 13:52:36,152 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:36,292 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:36,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:36,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:36,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:36,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:36,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159447158] [2020-07-21 13:52:36,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:36,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:36,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742467538] [2020-07-21 13:52:36,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:36,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:36,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:36,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:36,338 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-21 13:52:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:36,994 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-21 13:52:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:36,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-07-21 13:52:36,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:37,004 INFO L225 Difference]: With dead ends: 2130 [2020-07-21 13:52:37,005 INFO L226 Difference]: Without dead ends: 1213 [2020-07-21 13:52:37,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 13:52:37,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-21 13:52:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-21 13:52:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-21 13:52:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-21 13:52:37,046 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 145 [2020-07-21 13:52:37,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:37,047 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-21 13:52:37,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-21 13:52:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 13:52:37,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:37,052 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:37,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:37,268 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:37,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:37,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1462992114, now seen corresponding path program 1 times [2020-07-21 13:52:37,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:37,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438405596] [2020-07-21 13:52:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:37,403 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:37,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:37,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:37,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 13:52:37,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:37,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438405596] [2020-07-21 13:52:37,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:37,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:37,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996958586] [2020-07-21 13:52:37,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:37,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:37,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:37,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:37,455 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 3 states. [2020-07-21 13:52:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:38,031 INFO L93 Difference]: Finished difference Result 3595 states and 4812 transitions. [2020-07-21 13:52:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:38,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2020-07-21 13:52:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:38,048 INFO L225 Difference]: With dead ends: 3595 [2020-07-21 13:52:38,048 INFO L226 Difference]: Without dead ends: 2390 [2020-07-21 13:52:38,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 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 13:52:38,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2020-07-21 13:52:38,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2380. [2020-07-21 13:52:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2380 states. [2020-07-21 13:52:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3112 transitions. [2020-07-21 13:52:38,153 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3112 transitions. Word has length 151 [2020-07-21 13:52:38,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:38,153 INFO L479 AbstractCegarLoop]: Abstraction has 2380 states and 3112 transitions. [2020-07-21 13:52:38,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:38,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3112 transitions. [2020-07-21 13:52:38,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 13:52:38,165 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:38,165 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:38,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:38,380 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:38,381 INFO L82 PathProgramCache]: Analyzing trace with hash 651029189, now seen corresponding path program 1 times [2020-07-21 13:52:38,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:38,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140457229] [2020-07-21 13:52:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:38,508 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:38,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:38,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:38,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:38,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:38,664 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:38,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140457229] [2020-07-21 13:52:38,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:38,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:38,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841956160] [2020-07-21 13:52:38,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:38,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:38,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:38,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:38,667 INFO L87 Difference]: Start difference. First operand 2380 states and 3112 transitions. Second operand 6 states. [2020-07-21 13:52:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:39,650 INFO L93 Difference]: Finished difference Result 5458 states and 7301 transitions. [2020-07-21 13:52:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:39,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-07-21 13:52:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:39,676 INFO L225 Difference]: With dead ends: 5458 [2020-07-21 13:52:39,676 INFO L226 Difference]: Without dead ends: 3084 [2020-07-21 13:52:39,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 322 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 13:52:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2020-07-21 13:52:39,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3036. [2020-07-21 13:52:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3036 states. [2020-07-21 13:52:39,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 3925 transitions. [2020-07-21 13:52:39,849 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 3925 transitions. Word has length 163 [2020-07-21 13:52:39,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:39,850 INFO L479 AbstractCegarLoop]: Abstraction has 3036 states and 3925 transitions. [2020-07-21 13:52:39,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 3925 transitions. [2020-07-21 13:52:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 13:52:39,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:39,861 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:40,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:40,075 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:40,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:40,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1324893951, now seen corresponding path program 1 times [2020-07-21 13:52:40,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:40,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967972441] [2020-07-21 13:52:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:40,181 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:40,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:40,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:40,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:40,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:40,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967972441] [2020-07-21 13:52:40,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:40,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:40,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027714177] [2020-07-21 13:52:40,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:40,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:40,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:40,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:40,302 INFO L87 Difference]: Start difference. First operand 3036 states and 3925 transitions. Second operand 6 states. [2020-07-21 13:52:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:41,210 INFO L93 Difference]: Finished difference Result 6128 states and 7987 transitions. [2020-07-21 13:52:41,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:52:41,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-21 13:52:41,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:41,270 INFO L225 Difference]: With dead ends: 6128 [2020-07-21 13:52:41,271 INFO L226 Difference]: Without dead ends: 3098 [2020-07-21 13:52:41,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:52:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-07-21 13:52:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3074. [2020-07-21 13:52:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3074 states. [2020-07-21 13:52:41,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 3718 transitions. [2020-07-21 13:52:41,360 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 3718 transitions. Word has length 165 [2020-07-21 13:52:41,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:41,361 INFO L479 AbstractCegarLoop]: Abstraction has 3074 states and 3718 transitions. [2020-07-21 13:52:41,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:41,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 3718 transitions. [2020-07-21 13:52:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 13:52:41,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:41,373 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:41,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:41,587 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:41,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:41,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1116878025, now seen corresponding path program 1 times [2020-07-21 13:52:41,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:41,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814856621] [2020-07-21 13:52:41,589 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:41,688 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:41,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:41,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:52:41,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 13:52:41,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:41,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814856621] [2020-07-21 13:52:41,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:41,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:41,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422904269] [2020-07-21 13:52:41,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:41,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:41,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:41,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:41,735 INFO L87 Difference]: Start difference. First operand 3074 states and 3718 transitions. Second operand 5 states. [2020-07-21 13:52:42,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:42,582 INFO L93 Difference]: Finished difference Result 8135 states and 10324 transitions. [2020-07-21 13:52:42,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:42,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-21 13:52:42,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:42,612 INFO L225 Difference]: With dead ends: 8135 [2020-07-21 13:52:42,612 INFO L226 Difference]: Without dead ends: 5067 [2020-07-21 13:52:42,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:52:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5067 states. [2020-07-21 13:52:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5067 to 4995. [2020-07-21 13:52:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4995 states. [2020-07-21 13:52:42,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 5939 transitions. [2020-07-21 13:52:42,811 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 5939 transitions. Word has length 167 [2020-07-21 13:52:42,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:42,811 INFO L479 AbstractCegarLoop]: Abstraction has 4995 states and 5939 transitions. [2020-07-21 13:52:42,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 5939 transitions. [2020-07-21 13:52:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 13:52:42,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:42,833 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:43,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:43,048 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:43,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:43,049 INFO L82 PathProgramCache]: Analyzing trace with hash -27942242, now seen corresponding path program 1 times [2020-07-21 13:52:43,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:43,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458681234] [2020-07-21 13:52:43,050 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:43,181 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:43,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:43,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:43,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-07-21 13:52:43,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 120 proven. 39 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 13:52:43,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458681234] [2020-07-21 13:52:43,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:43,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:43,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561272186] [2020-07-21 13:52:43,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:43,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:43,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:43,331 INFO L87 Difference]: Start difference. First operand 4995 states and 5939 transitions. Second operand 6 states. [2020-07-21 13:52:44,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:44,248 INFO L93 Difference]: Finished difference Result 9991 states and 11887 transitions. [2020-07-21 13:52:44,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:44,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-21 13:52:44,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:44,267 INFO L225 Difference]: With dead ends: 9991 [2020-07-21 13:52:44,267 INFO L226 Difference]: Without dead ends: 4385 [2020-07-21 13:52:44,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 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 13:52:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4385 states. [2020-07-21 13:52:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4385 to 4374. [2020-07-21 13:52:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4374 states. [2020-07-21 13:52:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 5042 transitions. [2020-07-21 13:52:44,378 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 5042 transitions. Word has length 235 [2020-07-21 13:52:44,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:44,378 INFO L479 AbstractCegarLoop]: Abstraction has 4374 states and 5042 transitions. [2020-07-21 13:52:44,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:44,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 5042 transitions. [2020-07-21 13:52:44,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-07-21 13:52:44,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:44,392 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:44,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:44,607 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:44,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:44,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1585046762, now seen corresponding path program 1 times [2020-07-21 13:52:44,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:44,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967191144] [2020-07-21 13:52:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:44,751 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:44,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:44,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:44,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-21 13:52:44,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:44,898 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 144 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 13:52:44,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967191144] [2020-07-21 13:52:44,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:44,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:44,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003509999] [2020-07-21 13:52:44,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:44,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:44,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:44,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:44,901 INFO L87 Difference]: Start difference. First operand 4374 states and 5042 transitions. Second operand 7 states. [2020-07-21 13:52:46,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:46,387 INFO L93 Difference]: Finished difference Result 9734 states and 11208 transitions. [2020-07-21 13:52:46,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:46,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-07-21 13:52:46,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:46,412 INFO L225 Difference]: With dead ends: 9734 [2020-07-21 13:52:46,412 INFO L226 Difference]: Without dead ends: 5366 [2020-07-21 13:52:46,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 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 13:52:46,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5366 states. [2020-07-21 13:52:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5366 to 3488. [2020-07-21 13:52:46,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3488 states. [2020-07-21 13:52:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3488 states to 3488 states and 3811 transitions. [2020-07-21 13:52:46,519 INFO L78 Accepts]: Start accepts. Automaton has 3488 states and 3811 transitions. Word has length 239 [2020-07-21 13:52:46,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:46,519 INFO L479 AbstractCegarLoop]: Abstraction has 3488 states and 3811 transitions. [2020-07-21 13:52:46,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3488 states and 3811 transitions. [2020-07-21 13:52:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-21 13:52:46,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:46,530 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:52:46,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:46,744 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:46,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1885983282, now seen corresponding path program 1 times [2020-07-21 13:52:46,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:46,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922382711] [2020-07-21 13:52:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:46,885 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:46,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:46,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:46,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-21 13:52:46,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:47,085 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 151 proven. 13 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-21 13:52:47,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922382711] [2020-07-21 13:52:47,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:47,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:47,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583854219] [2020-07-21 13:52:47,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:47,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:47,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:47,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:47,088 INFO L87 Difference]: Start difference. First operand 3488 states and 3811 transitions. Second operand 7 states. [2020-07-21 13:52:48,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:48,438 INFO L93 Difference]: Finished difference Result 8123 states and 8933 transitions. [2020-07-21 13:52:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:48,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-07-21 13:52:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:48,468 INFO L225 Difference]: With dead ends: 8123 [2020-07-21 13:52:48,468 INFO L226 Difference]: Without dead ends: 3462 [2020-07-21 13:52:48,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 487 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 13:52:48,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2020-07-21 13:52:48,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3316. [2020-07-21 13:52:48,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2020-07-21 13:52:48,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 3564 transitions. [2020-07-21 13:52:48,561 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 3564 transitions. Word has length 246 [2020-07-21 13:52:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:48,561 INFO L479 AbstractCegarLoop]: Abstraction has 3316 states and 3564 transitions. [2020-07-21 13:52:48,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:48,562 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 3564 transitions. [2020-07-21 13:52:48,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 13:52:48,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:48,572 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:48,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:48,787 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:48,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:48,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1018854099, now seen corresponding path program 1 times [2020-07-21 13:52:48,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:48,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332850612] [2020-07-21 13:52:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 13:52:48,956 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:48,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:48,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:48,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-07-21 13:52:49,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 152 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-07-21 13:52:49,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332850612] [2020-07-21 13:52:49,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:49,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:49,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134931784] [2020-07-21 13:52:49,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:49,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:49,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:49,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:49,162 INFO L87 Difference]: Start difference. First operand 3316 states and 3564 transitions. Second operand 7 states. [2020-07-21 13:52:49,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:49,673 INFO L93 Difference]: Finished difference Result 6459 states and 6955 transitions. [2020-07-21 13:52:49,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:49,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2020-07-21 13:52:49,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:49,682 INFO L225 Difference]: With dead ends: 6459 [2020-07-21 13:52:49,682 INFO L226 Difference]: Without dead ends: 3149 [2020-07-21 13:52:49,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:52:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2020-07-21 13:52:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 3143. [2020-07-21 13:52:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2020-07-21 13:52:49,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3341 transitions. [2020-07-21 13:52:49,747 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3341 transitions. Word has length 250 [2020-07-21 13:52:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:49,747 INFO L479 AbstractCegarLoop]: Abstraction has 3143 states and 3341 transitions. [2020-07-21 13:52:49,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3341 transitions. [2020-07-21 13:52:49,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-21 13:52:49,757 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:49,758 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:49,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:49,971 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:49,971 INFO L82 PathProgramCache]: Analyzing trace with hash 631595354, now seen corresponding path program 1 times [2020-07-21 13:52:49,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:49,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856949998] [2020-07-21 13:52:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:50,120 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:50,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:50,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 13:52:50,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-07-21 13:52:50,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:50,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856949998] [2020-07-21 13:52:50,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:50,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:50,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238796594] [2020-07-21 13:52:50,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:50,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:50,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:50,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:50,179 INFO L87 Difference]: Start difference. First operand 3143 states and 3341 transitions. Second operand 3 states. [2020-07-21 13:52:50,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:50,697 INFO L93 Difference]: Finished difference Result 5072 states and 5392 transitions. [2020-07-21 13:52:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:50,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-07-21 13:52:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:50,699 INFO L225 Difference]: With dead ends: 5072 [2020-07-21 13:52:50,699 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:52:50,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 269 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 13:52:50,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:52:50,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:52:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:52:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:52:50,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 271 [2020-07-21 13:52:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:50,715 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:52:50,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:52:50,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:52:50,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:50,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:52:51,772 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 147 [2020-07-21 13:52:51,947 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 147 [2020-07-21 13:52:54,717 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 185 DAG size of output: 96 [2020-07-21 13:52:55,642 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 68 [2020-07-21 13:52:56,531 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 68 [2020-07-21 13:52:56,535 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:56,536 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)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 13:52:56,539 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:56,540 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,540 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,540 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,540 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,540 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:52:56,541 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,542 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:52:56,543 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:52:56,544 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:52:56,544 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:52:56,544 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:56,544 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:56,544 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:52:56,545 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:52:56,545 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:52:56,545 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:56,545 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:56,545 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:52:56,545 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,547 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,547 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,547 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,547 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 502) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:52:56,548 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,549 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:52:56,550 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:52:56,551 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:52:56,551 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:52:56,551 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:52:56,551 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:52:56,552 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:52:56,552 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,552 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:52:56,553 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:52:56,554 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,555 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:56,556 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,556 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:56,556 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:52:56,557 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,558 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:52:56,559 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,560 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:52:56,561 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,562 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,563 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse26 (<= ~a11~0 0)) (.cse13 (<= ~a17~0 8)) (.cse14 (<= 8 ~a17~0)) (.cse16 (not (= 1 ~a11~0))) (.cse22 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse17 (= ~a19~0 |old(~a19~0)|)) (.cse18 (<= |old(~a28~0)| ~a28~0))) (let ((.cse3 (not (<= 11 |old(~a28~0)|))) (.cse8 (and .cse22 .cse11 .cse17 .cse18)) (.cse20 (<= ~a28~0 9)) (.cse1 (= 1 |old(~a11~0)|)) (.cse4 (and .cse11 .cse13 .cse14 .cse16 .cse17 .cse18)) (.cse19 (not (<= 9 |old(~a28~0)|))) (.cse6 (not (<= |old(~a28~0)| 9))) (.cse27 (not (<= |old(~a11~0)| 0))) (.cse21 (not (<= |old(~a28~0)| 7))) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse5 (not (<= |old(~a17~0)| 8))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse24 (not (<= |old(~a28~0)| 10))) (.cse12 (or .cse26 (< 0 |old(~a11~0)|))) (.cse23 (<= ~a28~0 10)) (.cse15 (<= ~a25~0 0)) (.cse9 (not (<= |old(~a25~0)| 0))) (.cse10 (not (<= |old(~a19~0)| 0))) (.cse7 (not (<= |old(~a17~0)| 7))) (.cse25 (not (<= 10 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse6 .cse7 .cse8) (or .cse1 .cse6 .cse2 .cse9 .cse10 (and .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18) .cse5) (or .cse0 .cse19 .cse6 .cse2 .cse9 .cse15 .cse5) (or .cse0 .cse3 .cse7 .cse8) (or .cse0 .cse19 .cse6 .cse2 (and .cse13 .cse14 .cse20 .cse17 .cse18) .cse5) (or .cse1 .cse21 .cse2 .cse10 .cse16 .cse5) (or .cse19 .cse6 .cse10 .cse7 (and .cse22 .cse12 .cse20 .cse17 .cse18)) (or (and .cse12 .cse13 .cse14 .cse23 .cse16 .cse17 .cse18) .cse24 .cse1 .cse2 .cse10 .cse25 .cse5) (or .cse0 .cse24 .cse9 .cse15 .cse25) (or .cse0 .cse26 .cse5 .cse27) (or .cse0 .cse1 .cse6 .cse2 .cse4 .cse5) (or .cse0 .cse21 .cse9 .cse15 .cse5 .cse27) (or .cse19 .cse6 .cse9 .cse10 .cse15 .cse7 .cse27) (or .cse21 .cse2 .cse10 (and .cse11 .cse13 .cse14 .cse12 .cse17 .cse18) .cse5) (or .cse0 .cse21 .cse2 (and .cse11 .cse13 .cse14 .cse17 .cse18) .cse5) (or .cse0 (and .cse12 .cse23 .cse17 .cse18) .cse24 .cse25) (or .cse24 (and .cse22 .cse12 .cse23 .cse15 .cse17 .cse18) .cse9 .cse10 .cse7 .cse25)))) [2020-07-21 13:52:56,563 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,563 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,563 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,563 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:52:56,564 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,565 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:52:56,566 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,567 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:52:56,568 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:56,569 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:52:56,570 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:52:56,570 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:56,570 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 13:52:56,570 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:52:56,570 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:56,570 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 (<= |old(~a25~0)| 0)) (not (<= |old(~a17~0)| 8)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:52:56,570 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse12 (<= 10 ~a28~0)) (.cse14 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse16 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse11 (<= ~a28~0 7)) (.cse6 (< 0 |old(~a19~0)|)) (.cse13 (not (= 1 ~a11~0))) (.cse7 (= 1 ~a19~0)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3) (and .cse9 .cse10 .cse5 .cse11) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse0 .cse12 .cse13 .cse5) (and .cse7 .cse2 .cse14 .cse15 .cse3 .cse16) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse12 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse9 .cse10 .cse11) (and .cse7 .cse9 .cse10 .cse14 .cse13 .cse15 .cse16) (and .cse8 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse10 .cse0 .cse1 .cse13 .cse5) (and .cse7 .cse9 (<= ~a11~0 0) .cse1 .cse11) (and .cse6 .cse7 .cse9 .cse10 .cse8 .cse13) (and .cse7 .cse9 .cse10 .cse8 .cse4))) [2020-07-21 13:52:56,571 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:56,571 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:56,571 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse12 (<= 10 ~a28~0)) (.cse14 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= 11 ~a28~0)) (.cse16 (<= |old(~a28~0)| 10)) (.cse2 (<= ~a17~0 7)) (.cse3 (< 7 |old(~a17~0)|)) (.cse0 (<= ~a28~0 10)) (.cse5 (<= ~a19~0 0)) (.cse1 (<= ~a25~0 0)) (.cse11 (<= ~a28~0 7)) (.cse6 (< 0 |old(~a19~0)|)) (.cse13 (not (= 1 ~a11~0))) (.cse7 (= 1 ~a19~0)) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse8 (<= ~a28~0 9)) (.cse4 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse3) (and .cse9 .cse10 .cse5 .cse11) (not (<= |old(~a28~0)| 7)) (and .cse9 .cse10 .cse0 .cse12 .cse13 .cse5) (and .cse7 .cse2 .cse14 .cse15 .cse3 .cse16) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse12 (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a25~0)| 0)) (and .cse7 .cse9 .cse10 .cse11) (and .cse7 .cse9 .cse10 .cse14 .cse13 .cse15 .cse16) (and .cse8 .cse2 .cse3 .cse4 .cse5) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse10 .cse0 .cse1 .cse13 .cse5) (and .cse7 .cse9 (<= ~a11~0 0) .cse1 .cse11) (and .cse6 .cse7 .cse9 .cse10 .cse8 .cse13) (and .cse7 .cse9 .cse10 .cse8 .cse4))) [2020-07-21 13:52:56,571 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:52:56,571 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:52:56,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:52:56 BoogieIcfgContainer [2020-07-21 13:52:56,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:52:56,609 INFO L168 Benchmark]: Toolchain (without parser) took 26924.34 ms. Allocated memory was 137.4 MB in the beginning and 642.3 MB in the end (delta: 504.9 MB). Free memory was 100.3 MB in the beginning and 281.6 MB in the end (delta: -181.3 MB). Peak memory consumption was 473.3 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:56,610 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 137.4 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 13:52:56,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.72 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 99.9 MB in the beginning and 169.5 MB in the end (delta: -69.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:56,611 INFO L168 Benchmark]: Boogie Preprocessor took 115.16 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 165.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:56,612 INFO L168 Benchmark]: RCFGBuilder took 1270.95 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 180.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:56,613 INFO L168 Benchmark]: TraceAbstraction took 24707.07 ms. Allocated memory was 234.4 MB in the beginning and 642.3 MB in the end (delta: 407.9 MB). Free memory was 180.5 MB in the beginning and 281.6 MB in the end (delta: -101.2 MB). Peak memory consumption was 456.4 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:56,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 137.4 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 824.72 ms. Allocated memory was 137.4 MB in the beginning and 203.4 MB in the end (delta: 66.1 MB). Free memory was 99.9 MB in the beginning and 169.5 MB in the end (delta: -69.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.16 ms. Allocated memory is still 203.4 MB. Free memory was 169.5 MB in the beginning and 165.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1270.95 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 180.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24707.07 ms. Allocated memory was 234.4 MB in the beginning and 642.3 MB in the end (delta: 407.9 MB). Free memory was 180.5 MB in the beginning and 281.6 MB in the end (delta: -101.2 MB). Peak memory consumption was 456.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 502]: 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)) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || ((((0 < \old(a19) && 1 == a19) && a28 <= 9) && a17 <= 7) && 7 < \old(a17))) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 10 <= a28) && !(1 == a11)) && a19 <= 0)) || (((((1 == a19 && a17 <= 7) && a19 <= \old(a19)) && 11 <= a28) && 7 < \old(a17)) && \old(a28) <= 10)) || !(\old(a11) <= 0)) || ((a28 <= 10 && 10 <= a28) && a19 == \old(a19))) || !(\old(a25) <= 0)) || (((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 7)) || ((((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a19 <= \old(a19)) && !(1 == a11)) && 11 <= a28) && \old(a28) <= 10)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || !(\old(a17) <= 8)) || (((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && a25 <= 0) && !(1 == a11)) && a19 <= 0)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a25 <= 0) && a28 <= 7)) || (((((0 < \old(a19) && 1 == a19) && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && !(1 == a11))) || ((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && a28 <= 9) && 9 <= a28) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.9s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1143 SDtfs, 4743 SDslu, 621 SDs, 0 SdLazy, 8411 SolverSat, 1250 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3863 GetRequests, 3795 SyntacticMatches, 13 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4995occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 2199 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 235 PreInvPairs, 305 NumberOfFragments, 1160 HoareAnnotationTreeSize, 235 FomulaSimplifications, 4825 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8850 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2410 NumberOfCodeBlocks, 2410 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 3825 ConstructedInterpolants, 0 QuantifiedInterpolants, 1154217 SizeOfPredicates, 18 NumberOfNonLiveVariables, 6118 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 2352/2464 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...