/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 BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:47:55,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:47:55,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:47:55,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:47:55,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:47:55,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:47:55,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:47:55,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:47:55,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:47:55,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:47:55,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:47:55,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:47:55,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:47:55,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:47:55,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:47:55,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:47:55,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:47:55,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:47:55,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:47:55,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:47:55,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:47:55,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:47:55,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:47:55,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:47:55,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:47:55,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:47:55,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:47:55,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:47:55,458 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 22:47:55,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:47:55,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:47:55,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:47:55,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:47:55,487 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:47:55,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:47:55,487 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:47:55,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:47:55,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:47:55,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:47:55,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:47:55,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:47:55,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:47:55,490 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:47:55,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:47:55,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:47:55,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:47:55,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:47:55,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:47:55,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:47:55,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:47:55,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:47:55,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:47:55,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:47:55,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:47:55,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:47:55,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:47:55,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:47:55,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:47:55,494 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 -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:47:55,828 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:47:55,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:47:55,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:47:55,849 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:47:55,850 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:47:55,851 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-21 22:47:55,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bada7d8/0ced9b8a8fb64d1ab2619b9d8db9dd30/FLAGf9c584033 [2020-07-21 22:47:56,565 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:47:56,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-21 22:47:56,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bada7d8/0ced9b8a8fb64d1ab2619b9d8db9dd30/FLAGf9c584033 [2020-07-21 22:47:56,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bada7d8/0ced9b8a8fb64d1ab2619b9d8db9dd30 [2020-07-21 22:47:56,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:47:56,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:47:56,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:47:56,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:47:56,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:47:56,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:47:56" (1/1) ... [2020-07-21 22:47:56,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c24edc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:56, skipping insertion in model container [2020-07-21 22:47:56,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:47:56" (1/1) ... [2020-07-21 22:47:56,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:47:56,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:47:57,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:47:57,455 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:47:57,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:47:57,695 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:47:57,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57 WrapperNode [2020-07-21 22:47:57,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:47:57,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:47:57,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:47:57,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:47:57,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (1/1) ... [2020-07-21 22:47:57,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (1/1) ... [2020-07-21 22:47:57,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (1/1) ... [2020-07-21 22:47:57,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (1/1) ... [2020-07-21 22:47:57,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (1/1) ... [2020-07-21 22:47:57,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (1/1) ... [2020-07-21 22:47:57,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (1/1) ... [2020-07-21 22:47:57,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:47:57,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:47:57,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:47:57,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:47:57,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (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 22:47:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:47:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:47:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:47:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:47:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:47:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:47:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:47:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:47:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:47:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:47:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:47:59,130 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:47:59,131 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:47:59,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:47:59 BoogieIcfgContainer [2020-07-21 22:47:59,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:47:59,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:47:59,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:47:59,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:47:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:47:56" (1/3) ... [2020-07-21 22:47:59,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:47:59, skipping insertion in model container [2020-07-21 22:47:59,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:47:57" (2/3) ... [2020-07-21 22:47:59,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9bb667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:47:59, skipping insertion in model container [2020-07-21 22:47:59,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:47:59" (3/3) ... [2020-07-21 22:47:59,150 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-07-21 22:47:59,165 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:47:59,175 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:47:59,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:47:59,229 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:47:59,229 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:47:59,230 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:47:59,230 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:47:59,230 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:47:59,230 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:47:59,230 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:47:59,231 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:47:59,259 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 22:47:59,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-21 22:47:59,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:47:59,273 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] [2020-07-21 22:47:59,274 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:47:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:47:59,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2020-07-21 22:47:59,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:47:59,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883823255] [2020-07-21 22:47:59,294 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:47:59,549 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:47:59,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:47:59,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 22:47:59,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:47:59,973 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 22:48:00,126 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 22:48:00,568 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 22:48:00,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:48:00,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883823255] [2020-07-21 22:48:00,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:48:00,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 22:48:00,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351839048] [2020-07-21 22:48:00,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 22:48:00,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:00,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 22:48:00,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:48:00,601 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 22:48:02,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:02,462 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 22:48:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:48:02,467 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-07-21 22:48:02,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:02,481 INFO L225 Difference]: With dead ends: 472 [2020-07-21 22:48:02,482 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 22:48:02,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 22:48:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 22:48:02,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 22:48:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 22:48:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 22:48:02,560 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 100 [2020-07-21 22:48:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:02,561 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 22:48:02,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 22:48:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 22:48:02,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-21 22:48:02,567 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:02,568 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:02,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:02,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:02,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:02,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1493638873, now seen corresponding path program 1 times [2020-07-21 22:48:02,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:02,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266569256] [2020-07-21 22:48:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:02,883 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:48:02,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:02,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 22:48:02,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:03,586 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:48:03,591 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 22:48:03,591 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 22:48:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:03,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:04,477 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 22:48:04,638 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:48:04,802 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 22:48:04,979 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 22:48:04,984 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 22:48:04,987 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 22:48:04,989 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:48:04,991 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:48:04,993 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:04,995 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 22:48:05,000 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 22:48:05,002 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 22:48:05,003 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:05,014 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:05,016 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:05,021 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 22:48:05,022 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:05,023 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:05,024 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:05,029 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:05,030 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:05,032 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:05,034 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:05,036 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 22:48:05,037 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:05,043 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:05,045 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:05,048 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 22:48:05,049 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 22:48:05,658 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 22:48:05,661 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 22:48:05,662 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 22:48:05,747 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:48:05,748 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:05,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:05,859 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:06,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266569256] [2020-07-21 22:48:06,059 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:06,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 22:48:06,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090028789] [2020-07-21 22:48:06,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 22:48:06,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:06,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 22:48:06,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 22:48:06,075 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 22:48:07,223 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 22:48:07,787 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 22:48:08,095 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 22:48:08,601 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 22:48:08,868 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 22:48:09,378 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 22:48:11,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:11,685 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 22:48:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 22:48:11,685 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 108 [2020-07-21 22:48:11,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:11,695 INFO L225 Difference]: With dead ends: 588 [2020-07-21 22:48:11,696 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 22:48:11,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 22:48:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 22:48:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 22:48:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 22:48:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 22:48:11,770 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 108 [2020-07-21 22:48:11,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:11,771 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 22:48:11,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 22:48:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 22:48:11,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 22:48:11,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:11,778 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 22:48:11,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:11,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:11,984 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2020-07-21 22:48:11,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:11,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760480570] [2020-07-21 22:48:11,985 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:12,106 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:48:12,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:12,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:48:12,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:12,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:48:12,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760480570] [2020-07-21 22:48:12,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:48:12,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:48:12,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56212392] [2020-07-21 22:48:12,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:48:12,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:12,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:48:12,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:48:12,156 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 22:48:12,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:12,748 INFO L93 Difference]: Finished difference Result 1042 states and 1430 transitions. [2020-07-21 22:48:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:48:12,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-21 22:48:12,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:12,777 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 22:48:12,777 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 22:48:12,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 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 22:48:12,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 22:48:12,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 22:48:12,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 22:48:12,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 902 transitions. [2020-07-21 22:48:12,811 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 902 transitions. Word has length 111 [2020-07-21 22:48:12,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:12,811 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 902 transitions. [2020-07-21 22:48:12,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:48:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 902 transitions. [2020-07-21 22:48:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 22:48:12,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:12,816 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-21 22:48:13,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:13,031 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:13,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:13,032 INFO L82 PathProgramCache]: Analyzing trace with hash -2022552526, now seen corresponding path program 1 times [2020-07-21 22:48:13,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:13,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064805412] [2020-07-21 22:48:13,034 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:13,116 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:48:13,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:13,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:48:13,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:13,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:13,249 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:13,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064805412] [2020-07-21 22:48:13,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:13,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 22:48:13,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699273840] [2020-07-21 22:48:13,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:48:13,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:13,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:48:13,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:48:13,253 INFO L87 Difference]: Start difference. First operand 691 states and 902 transitions. Second operand 8 states. [2020-07-21 22:48:15,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:15,104 INFO L93 Difference]: Finished difference Result 2763 states and 3750 transitions. [2020-07-21 22:48:15,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:48:15,106 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-07-21 22:48:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:15,121 INFO L225 Difference]: With dead ends: 2763 [2020-07-21 22:48:15,121 INFO L226 Difference]: Without dead ends: 2138 [2020-07-21 22:48:15,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:48:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2020-07-21 22:48:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 1662. [2020-07-21 22:48:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-21 22:48:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2119 transitions. [2020-07-21 22:48:15,233 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2119 transitions. Word has length 119 [2020-07-21 22:48:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:15,240 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 2119 transitions. [2020-07-21 22:48:15,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:48:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2119 transitions. [2020-07-21 22:48:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 22:48:15,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:15,252 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:15,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:15,467 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:15,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:15,467 INFO L82 PathProgramCache]: Analyzing trace with hash 308691738, now seen corresponding path program 1 times [2020-07-21 22:48:15,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:15,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127745403] [2020-07-21 22:48:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:15,566 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:48:15,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:15,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:48:15,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:15,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:15,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127745403] [2020-07-21 22:48:15,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:15,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:15,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928235881] [2020-07-21 22:48:15,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:15,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:15,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:15,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:15,667 INFO L87 Difference]: Start difference. First operand 1662 states and 2119 transitions. Second operand 7 states. [2020-07-21 22:48:17,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:17,280 INFO L93 Difference]: Finished difference Result 5960 states and 7844 transitions. [2020-07-21 22:48:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:48:17,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2020-07-21 22:48:17,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:17,308 INFO L225 Difference]: With dead ends: 5960 [2020-07-21 22:48:17,308 INFO L226 Difference]: Without dead ends: 4364 [2020-07-21 22:48:17,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 257 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 22:48:17,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2020-07-21 22:48:17,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 3886. [2020-07-21 22:48:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3886 states. [2020-07-21 22:48:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 4958 transitions. [2020-07-21 22:48:17,443 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 4958 transitions. Word has length 131 [2020-07-21 22:48:17,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:17,443 INFO L479 AbstractCegarLoop]: Abstraction has 3886 states and 4958 transitions. [2020-07-21 22:48:17,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:48:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 4958 transitions. [2020-07-21 22:48:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 22:48:17,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:17,453 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:17,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:17,656 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:17,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:17,656 INFO L82 PathProgramCache]: Analyzing trace with hash -982570558, now seen corresponding path program 1 times [2020-07-21 22:48:17,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:17,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325825190] [2020-07-21 22:48:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:17,761 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:48:17,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:17,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 22:48:17,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:17,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:48:17,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325825190] [2020-07-21 22:48:17,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:17,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:48:17,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004976406] [2020-07-21 22:48:17,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:48:17,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:17,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:48:17,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:48:17,874 INFO L87 Difference]: Start difference. First operand 3886 states and 4958 transitions. Second operand 6 states. [2020-07-21 22:48:18,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:18,655 INFO L93 Difference]: Finished difference Result 7327 states and 9406 transitions. [2020-07-21 22:48:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:48:18,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-07-21 22:48:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:18,677 INFO L225 Difference]: With dead ends: 7327 [2020-07-21 22:48:18,677 INFO L226 Difference]: Without dead ends: 4331 [2020-07-21 22:48:18,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:48:18,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2020-07-21 22:48:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 3624. [2020-07-21 22:48:18,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3624 states. [2020-07-21 22:48:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 4438 transitions. [2020-07-21 22:48:18,795 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 4438 transitions. Word has length 136 [2020-07-21 22:48:18,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:18,796 INFO L479 AbstractCegarLoop]: Abstraction has 3624 states and 4438 transitions. [2020-07-21 22:48:18,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:48:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 4438 transitions. [2020-07-21 22:48:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 22:48:18,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:18,806 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:19,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:19,020 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:19,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1924315545, now seen corresponding path program 1 times [2020-07-21 22:48:19,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:19,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354273160] [2020-07-21 22:48:19,021 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:19,120 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 22:48:19,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:19,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:48:19,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 22:48:19,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:19,383 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:48:19,434 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:48:19,435 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:19,440 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:48:19,440 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:19,441 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:19,442 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:19,442 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:19,565 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 22:48:19,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354273160] [2020-07-21 22:48:19,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:19,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:19,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852889186] [2020-07-21 22:48:19,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:19,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:19,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:19,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:19,572 INFO L87 Difference]: Start difference. First operand 3624 states and 4438 transitions. Second operand 7 states. [2020-07-21 22:48:20,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:20,898 INFO L93 Difference]: Finished difference Result 6411 states and 7763 transitions. [2020-07-21 22:48:20,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:48:20,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-07-21 22:48:20,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:20,918 INFO L225 Difference]: With dead ends: 6411 [2020-07-21 22:48:20,919 INFO L226 Difference]: Without dead ends: 3256 [2020-07-21 22:48:20,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:48:20,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2020-07-21 22:48:20,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 2782. [2020-07-21 22:48:20,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-07-21 22:48:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3187 transitions. [2020-07-21 22:48:20,992 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3187 transitions. Word has length 146 [2020-07-21 22:48:20,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:20,992 INFO L479 AbstractCegarLoop]: Abstraction has 2782 states and 3187 transitions. [2020-07-21 22:48:20,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:48:20,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3187 transitions. [2020-07-21 22:48:21,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 22:48:21,001 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:21,001 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:21,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:21,215 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:21,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1378238699, now seen corresponding path program 1 times [2020-07-21 22:48:21,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:21,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763868201] [2020-07-21 22:48:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:21,322 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:48:21,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:21,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:48:21,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:21,383 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 22:48:21,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:21,559 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 22:48:21,594 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:21,597 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:21,598 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:21,599 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:48:21,600 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:21,600 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[5, 2, 1] term [2020-07-21 22:48:21,601 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:21,699 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 84 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 22:48:21,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763868201] [2020-07-21 22:48:21,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:21,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:21,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579202410] [2020-07-21 22:48:21,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:21,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:21,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:21,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:21,702 INFO L87 Difference]: Start difference. First operand 2782 states and 3187 transitions. Second operand 7 states. [2020-07-21 22:48:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:22,873 INFO L93 Difference]: Finished difference Result 4857 states and 5542 transitions. [2020-07-21 22:48:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:48:22,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-07-21 22:48:22,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:22,886 INFO L225 Difference]: With dead ends: 4857 [2020-07-21 22:48:22,887 INFO L226 Difference]: Without dead ends: 2804 [2020-07-21 22:48:22,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 350 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:48:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2020-07-21 22:48:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2790. [2020-07-21 22:48:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2790 states. [2020-07-21 22:48:22,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3096 transitions. [2020-07-21 22:48:22,957 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3096 transitions. Word has length 176 [2020-07-21 22:48:22,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:22,957 INFO L479 AbstractCegarLoop]: Abstraction has 2790 states and 3096 transitions. [2020-07-21 22:48:22,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:48:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3096 transitions. [2020-07-21 22:48:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 22:48:22,967 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:22,967 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:48:23,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:23,183 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:23,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2147375956, now seen corresponding path program 1 times [2020-07-21 22:48:23,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:23,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421400266] [2020-07-21 22:48:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:23,294 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:48:23,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:23,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 22:48:23,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:23,329 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:48:23,329 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:48:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 22:48:23,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:23,605 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:48:23,658 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,659 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:23,660 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,661 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:23,661 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,662 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,663 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,663 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,664 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,665 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,666 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[8, 2, 1] term [2020-07-21 22:48:23,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,667 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 1] term [2020-07-21 22:48:23,667 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,701 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:23,755 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:23,758 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:23,941 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 108 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 22:48:23,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421400266] [2020-07-21 22:48:23,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:23,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 22:48:23,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689623532] [2020-07-21 22:48:23,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:48:23,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:23,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:48:23,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 22:48:23,943 INFO L87 Difference]: Start difference. First operand 2790 states and 3096 transitions. Second operand 8 states. [2020-07-21 22:48:24,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:24,857 INFO L93 Difference]: Finished difference Result 5524 states and 6213 transitions. [2020-07-21 22:48:24,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:48:24,858 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 198 [2020-07-21 22:48:24,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:24,869 INFO L225 Difference]: With dead ends: 5524 [2020-07-21 22:48:24,869 INFO L226 Difference]: Without dead ends: 2655 [2020-07-21 22:48:24,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:48:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2020-07-21 22:48:24,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2363. [2020-07-21 22:48:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2363 states. [2020-07-21 22:48:24,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 2643 transitions. [2020-07-21 22:48:24,927 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 2643 transitions. Word has length 198 [2020-07-21 22:48:24,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:24,927 INFO L479 AbstractCegarLoop]: Abstraction has 2363 states and 2643 transitions. [2020-07-21 22:48:24,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 22:48:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 2643 transitions. [2020-07-21 22:48:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-21 22:48:24,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:24,936 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:48:25,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:25,149 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:25,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:25,149 INFO L82 PathProgramCache]: Analyzing trace with hash -482265210, now seen corresponding path program 1 times [2020-07-21 22:48:25,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:25,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581274220] [2020-07-21 22:48:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:25,268 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:48:25,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:25,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:48:25,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:25,328 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-21 22:48:25,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 162 proven. 33 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-21 22:48:25,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581274220] [2020-07-21 22:48:25,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:25,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:25,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082391431] [2020-07-21 22:48:25,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:25,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:25,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:25,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:25,452 INFO L87 Difference]: Start difference. First operand 2363 states and 2643 transitions. Second operand 7 states. [2020-07-21 22:48:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:26,569 INFO L93 Difference]: Finished difference Result 4934 states and 5536 transitions. [2020-07-21 22:48:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:48:26,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-07-21 22:48:26,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:26,580 INFO L225 Difference]: With dead ends: 4934 [2020-07-21 22:48:26,581 INFO L226 Difference]: Without dead ends: 2774 [2020-07-21 22:48:26,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 451 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:48:26,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2020-07-21 22:48:26,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2357. [2020-07-21 22:48:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2357 states. [2020-07-21 22:48:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 2577 transitions. [2020-07-21 22:48:26,637 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 2577 transitions. Word has length 227 [2020-07-21 22:48:26,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:26,638 INFO L479 AbstractCegarLoop]: Abstraction has 2357 states and 2577 transitions. [2020-07-21 22:48:26,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:48:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 2577 transitions. [2020-07-21 22:48:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-07-21 22:48:26,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:26,646 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:26,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:26,861 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:26,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:26,861 INFO L82 PathProgramCache]: Analyzing trace with hash -202608830, now seen corresponding path program 1 times [2020-07-21 22:48:26,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:26,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757064548] [2020-07-21 22:48:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:26,997 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:48:26,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:26,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:48:27,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:27,022 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 22:48:27,023 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:48:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 215 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 22:48:27,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:27,329 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 22:48:27,380 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,381 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,382 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:48:27,382 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,383 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,384 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:27,384 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,385 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:27,385 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,386 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,386 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:27,387 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,387 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:27,414 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:27,543 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 181 proven. 15 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-07-21 22:48:27,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757064548] [2020-07-21 22:48:27,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:27,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:27,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699525449] [2020-07-21 22:48:27,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:27,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:27,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:27,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:27,547 INFO L87 Difference]: Start difference. First operand 2357 states and 2577 transitions. Second operand 7 states. [2020-07-21 22:48:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:28,465 INFO L93 Difference]: Finished difference Result 5613 states and 6206 transitions. [2020-07-21 22:48:28,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:48:28,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 254 [2020-07-21 22:48:28,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:28,477 INFO L225 Difference]: With dead ends: 5613 [2020-07-21 22:48:28,478 INFO L226 Difference]: Without dead ends: 3322 [2020-07-21 22:48:28,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 504 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:48:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2020-07-21 22:48:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 3316. [2020-07-21 22:48:28,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2020-07-21 22:48:28,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 3651 transitions. [2020-07-21 22:48:28,545 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 3651 transitions. Word has length 254 [2020-07-21 22:48:28,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:28,545 INFO L479 AbstractCegarLoop]: Abstraction has 3316 states and 3651 transitions. [2020-07-21 22:48:28,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:48:28,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 3651 transitions. [2020-07-21 22:48:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-07-21 22:48:28,555 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:28,555 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-07-21 22:48:28,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:28,770 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:28,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:28,770 INFO L82 PathProgramCache]: Analyzing trace with hash 618439527, now seen corresponding path program 1 times [2020-07-21 22:48:28,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:28,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892818502] [2020-07-21 22:48:28,771 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:28,927 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:48:28,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:28,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 22:48:28,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:28,954 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2020-07-21 22:48:28,955 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:48:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:48:29,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:29,135 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:29,136 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 22:48:29,162 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:48:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:48:29,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892818502] [2020-07-21 22:48:29,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:29,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:29,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947290001] [2020-07-21 22:48:29,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:29,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:29,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:29,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:29,321 INFO L87 Difference]: Start difference. First operand 3316 states and 3651 transitions. Second operand 7 states. [2020-07-21 22:48:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:30,311 INFO L93 Difference]: Finished difference Result 5230 states and 5789 transitions. [2020-07-21 22:48:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 22:48:30,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 267 [2020-07-21 22:48:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:30,324 INFO L225 Difference]: With dead ends: 5230 [2020-07-21 22:48:30,324 INFO L226 Difference]: Without dead ends: 3485 [2020-07-21 22:48:30,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 530 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 22:48:30,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2020-07-21 22:48:30,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 3459. [2020-07-21 22:48:30,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3459 states. [2020-07-21 22:48:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 3798 transitions. [2020-07-21 22:48:30,397 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 3798 transitions. Word has length 267 [2020-07-21 22:48:30,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:30,397 INFO L479 AbstractCegarLoop]: Abstraction has 3459 states and 3798 transitions. [2020-07-21 22:48:30,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:48:30,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 3798 transitions. [2020-07-21 22:48:30,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-07-21 22:48:30,411 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:48:30,411 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:48:30,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:30,625 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:48:30,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:48:30,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1262654143, now seen corresponding path program 1 times [2020-07-21 22:48:30,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:48:30,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43303818] [2020-07-21 22:48:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 22:48:30,809 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:48:30,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:48:30,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 22:48:30,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:48:30,925 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 297 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:48:30,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:48:31,036 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 22:48:31,037 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:48:31,218 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 297 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 22:48:31,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43303818] [2020-07-21 22:48:31,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:48:31,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:48:31,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194552573] [2020-07-21 22:48:31,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:48:31,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:48:31,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:48:31,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:48:31,220 INFO L87 Difference]: Start difference. First operand 3459 states and 3798 transitions. Second operand 7 states. [2020-07-21 22:48:32,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:48:32,437 INFO L93 Difference]: Finished difference Result 6856 states and 7529 transitions. [2020-07-21 22:48:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 22:48:32,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 287 [2020-07-21 22:48:32,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:48:32,439 INFO L225 Difference]: With dead ends: 6856 [2020-07-21 22:48:32,439 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 22:48:32,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 572 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:48:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 22:48:32,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 22:48:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 22:48:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 22:48:32,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2020-07-21 22:48:32,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:48:32,450 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 22:48:32,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:48:32,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 22:48:32,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 22:48:32,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:48:32,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 22:48:33,499 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 185 [2020-07-21 22:48:33,747 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 175 [2020-07-21 22:48:35,895 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 277 DAG size of output: 95 [2020-07-21 22:48:37,169 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 197 DAG size of output: 73 [2020-07-21 22:48:38,388 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 187 DAG size of output: 73 [2020-07-21 22:48:38,392 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:48:38,392 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (<= |old(~a8~0)| ~a8~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 22:48:38,392 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:48:38,393 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 22:48:38,393 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 22:48:38,393 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,393 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,393 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,394 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,394 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,394 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,394 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 22:48:38,394 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 22:48:38,394 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 22:48:38,395 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 22:48:38,395 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 22:48:38,395 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 22:48:38,395 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 22:48:38,395 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,396 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 22:48:38,397 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,398 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,399 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 22:48:38,400 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,401 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 22:48:38,402 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,403 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 22:48:38,404 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,405 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 22:48:38,406 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 22:48:38,407 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 22:48:38,408 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 22:48:38,408 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 22:48:38,408 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 22:48:38,408 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 22:48:38,408 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse23 (= 1 |old(~a17~0)|)) (.cse22 (= 1 |old(~a20~0)|))) (let ((.cse11 (= 1 |old(~a21~0)|)) (.cse0 (<= ~a16~0 |old(~a16~0)|)) (.cse1 (<= ~a8~0 |old(~a8~0)|)) (.cse2 (= ~a7~0 |old(~a7~0)|)) (.cse3 (= ~a17~0 |old(~a17~0)|)) (.cse4 (<= |old(~a16~0)| ~a16~0)) (.cse5 (<= |old(~a8~0)| ~a8~0)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse17 (not .cse22)) (.cse9 (not .cse23))) (let ((.cse14 (and (or .cse17 .cse9) (or .cse22 .cse23))) (.cse8 (not (<= |old(~a8~0)| 13))) (.cse10 (not (<= |old(~a16~0)| 4))) (.cse15 (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= 1 ~a21~0) .cse6)) (.cse18 (not (<= |old(~a7~0)| 0))) (.cse19 (not (= 8 ~a12~0))) (.cse13 (not (<= |old(~a16~0)| 5))) (.cse21 (not (< 4 |old(~a16~0)|))) (.cse20 (not (< |old(~a8~0)| 15))) (.cse12 (not (= 1 |old(~a7~0)|))) (.cse7 (= ~a21~0 |old(~a21~0)|)) (.cse16 (not .cse11))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse17 .cse18 (and .cse3 .cse4 .cse5) .cse16 .cse19) (or .cse18 .cse14 .cse15 .cse16 .cse19) (or (and .cse1 .cse0 .cse2 .cse3 .cse4 .cse5 (= 1 ~a20~0) .cse7) (and (or .cse17 .cse20 (not (<= 6 |old(~a16~0)|))) (or .cse17 .cse8 .cse10))) (or (not (<= 15 |old(~a8~0)|)) .cse18 .cse15 .cse16 .cse19) (or (and (or .cse18 .cse19) (or .cse17 .cse20)) (and .cse0 .cse1 .cse2 .cse6 .cse7) .cse13 .cse16) (or .cse12 .cse13 .cse21 .cse6 .cse16) (or .cse17 (and .cse1 .cse0 .cse2 .cse5 (= 1 ~a17~0) (< 4 ~a16~0) .cse6 .cse7) .cse21 .cse9 .cse20) (or .cse12 (and .cse1 .cse0 (= 1 ~a7~0) (<= 5 ~a16~0) .cse7) (not (<= 5 |old(~a16~0)|)) .cse16))))) [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 22:48:38,409 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 22:48:38,410 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 22:48:38,411 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 22:48:38,412 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 22:48:38,413 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 22:48:38,414 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 22:48:38,414 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 22:48:38,414 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 22:48:38,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 22:48:38,414 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 22:48:38,414 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 22:48:38,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 22:48:38,414 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= 15 ~a8~0) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 5 ~a16~0)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 22:48:38,414 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:48:38,414 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse10 (= 1 ~a17~0)) (.cse8 (= 1 ~a20~0))) (let ((.cse9 (<= ~a8~0 13)) (.cse11 (<= ~a16~0 4)) (.cse0 (= 1 ~a7~0)) (.cse1 (not (= 1 |old(~a7~0)|))) (.cse2 (or (and (not .cse8) (not .cse10)) (and .cse10 .cse8))) (.cse4 (< 4 |old(~a16~0)|)) (.cse7 (< ~a8~0 15)) (.cse12 (< 4 ~a16~0)) (.cse6 (< 14 |old(~a8~0)|)) (.cse13 (<= ~a7~0 0)) (.cse3 (<= ~a16~0 5)) (.cse5 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and (<= 6 ~a16~0) .cse4 .cse7 .cse8 .cse6) (not .cse4) (not (= 1 |old(~a17~0)|)) (and .cse9 .cse10 (not .cse5) .cse11) (and .cse9 .cse8 .cse11) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse12 .cse6) (not (= 1 |old(~a20~0)|)) (and .cse4 .cse5 .cse7 .cse8 .cse6) (and .cse2 .cse13 .cse5) (and .cse10 .cse4 .cse7 .cse8 .cse12 .cse6) (and .cse13 (<= 15 ~a8~0) .cse5) (not (<= |old(~a16~0)| 5)) (and .cse13 .cse3 .cse5) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))))) [2020-07-21 22:48:38,414 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 22:48:38,415 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 22:48:38,415 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse10 (= 1 ~a17~0)) (.cse8 (= 1 ~a20~0))) (let ((.cse9 (<= ~a8~0 13)) (.cse11 (<= ~a16~0 4)) (.cse0 (= 1 ~a7~0)) (.cse1 (not (= 1 |old(~a7~0)|))) (.cse2 (or (and (not .cse8) (not .cse10)) (and .cse10 .cse8))) (.cse4 (< 4 |old(~a16~0)|)) (.cse7 (< ~a8~0 15)) (.cse12 (< 4 ~a16~0)) (.cse6 (< 14 |old(~a8~0)|)) (.cse13 (<= ~a7~0 0)) (.cse3 (<= ~a16~0 5)) (.cse5 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and (<= 6 ~a16~0) .cse4 .cse7 .cse8 .cse6) (not .cse4) (not (= 1 |old(~a17~0)|)) (and .cse9 .cse10 (not .cse5) .cse11) (and .cse9 .cse8 .cse11) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse12 .cse6) (not (= 1 |old(~a20~0)|)) (and .cse4 .cse5 .cse7 .cse8 .cse6) (and .cse2 .cse13 .cse5) (and .cse10 .cse4 .cse7 .cse8 .cse12 .cse6) (and .cse13 (<= 15 ~a8~0) .cse5) (not (<= |old(~a16~0)| 5)) (and .cse13 .cse3 .cse5) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))))) [2020-07-21 22:48:38,415 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 22:48:38,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:48:38 BoogieIcfgContainer [2020-07-21 22:48:38,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:48:38,439 INFO L168 Benchmark]: Toolchain (without parser) took 41587.25 ms. Allocated memory was 145.2 MB in the beginning and 608.7 MB in the end (delta: 463.5 MB). Free memory was 100.0 MB in the beginning and 93.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 483.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:48:38,440 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 22:48:38,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.54 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 99.8 MB in the beginning and 171.3 MB in the end (delta: -71.5 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:48:38,441 INFO L168 Benchmark]: Boogie Preprocessor took 141.21 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 165.7 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2020-07-21 22:48:38,442 INFO L168 Benchmark]: RCFGBuilder took 1300.14 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 180.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:48:38,443 INFO L168 Benchmark]: TraceAbstraction took 39298.08 ms. Allocated memory was 238.0 MB in the beginning and 608.7 MB in the end (delta: 370.7 MB). Free memory was 180.7 MB in the beginning and 93.4 MB in the end (delta: 87.3 MB). Peak memory consumption was 471.0 MB. Max. memory is 7.1 GB. [2020-07-21 22:48:38,445 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 841.54 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 99.8 MB in the beginning and 171.3 MB in the end (delta: -71.5 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.21 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 165.7 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1300.14 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 180.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39298.08 ms. Allocated memory was 238.0 MB in the beginning and 608.7 MB in the end (delta: 370.7 MB). Free memory was 180.7 MB in the beginning and 93.4 MB in the end (delta: 87.3 MB). Peak memory consumption was 471.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((1 == a7 && !(1 == \old(a7))) && ((!(1 == a20) && !(1 == a17)) || (1 == a17 && 1 == a20))) && a16 <= 5) && 4 < \old(a16)) && 1 == a21) && 14 < \old(a8)) || !(15 == \old(a8))) || !(\old(a7) <= 0)) || ((((6 <= a16 && 4 < \old(a16)) && a8 < 15) && 1 == a20) && 14 < \old(a8))) || !(4 < \old(a16))) || !(1 == \old(a17))) || (((a8 <= 13 && 1 == a17) && !(1 == a21)) && a16 <= 4)) || ((a8 <= 13 && 1 == a20) && a16 <= 4)) || ((((((1 == a7 && !(1 == \old(a7))) && a16 <= 5) && 4 < \old(a16)) && 1 == a21) && 4 < a16) && 14 < \old(a8))) || !(1 == \old(a20))) || ((((4 < \old(a16) && 1 == a21) && a8 < 15) && 1 == a20) && 14 < \old(a8))) || ((((!(1 == a20) && !(1 == a17)) || (1 == a17 && 1 == a20)) && a7 <= 0) && 1 == a21)) || (((((1 == a17 && 4 < \old(a16)) && a8 < 15) && 1 == a20) && 4 < a16) && 14 < \old(a8))) || ((a7 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || ((a7 <= 0 && a16 <= 5) && 1 == a21)) || !(1 == \old(a21))) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 33.4s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 20.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 537 SDtfs, 7190 SDslu, 676 SDs, 0 SdLazy, 13660 SolverSat, 1749 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4393 GetRequests, 4233 SyntacticMatches, 12 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3886occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 13 MinimizatonAttempts, 2924 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 221 PreInvPairs, 291 NumberOfFragments, 936 HoareAnnotationTreeSize, 221 FomulaSimplifications, 10815 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16806 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 2260 NumberOfCodeBlocks, 1379 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 4285 ConstructedInterpolants, 0 QuantifiedInterpolants, 3839682 SizeOfPredicates, 63 NumberOfNonLiveVariables, 5307 ConjunctsInSsa, 217 ConjunctsInUnsatCore, 24 InterpolantComputations, 2 PerfectInterpolantSequences, 3341/3504 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...