/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 DAGSIZE --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/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:09:09,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:09:09,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:09:09,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:09:09,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:09:09,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:09:09,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:09:09,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:09:09,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:09:09,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:09:09,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:09:09,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:09:09,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:09:09,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:09:09,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:09:09,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:09:09,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:09:09,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:09:09,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:09:09,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:09:09,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:09:09,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:09:09,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:09:09,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:09:09,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:09:09,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:09:09,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:09:09,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:09:09,444 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 [2020-07-20 22:09:09,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:09:09,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:09:09,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:09:09,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:09:09,463 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:09:09,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:09:09,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:09:09,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:09:09,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:09:09,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:09:09,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:09:09,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:09:09,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:09:09,465 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:09:09,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:09:09,465 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:09:09,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:09:09,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:09:09,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:09:09,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:09:09,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:09:09,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:09:09,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:09:09,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:09:09,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:09:09,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:09:09,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:09,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:09:09,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:09:09,468 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 -> DAGSIZE 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 [2020-07-20 22:09:09,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:09:09,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:09:09,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:09:09,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:09:09,768 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:09:09,768 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-20 22:09:09,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fafa7636/c0fbff821a564df6a3251a18dccfbd6e/FLAG0e05f4e0b [2020-07-20 22:09:10,451 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:09:10,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-20 22:09:10,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fafa7636/c0fbff821a564df6a3251a18dccfbd6e/FLAG0e05f4e0b [2020-07-20 22:09:10,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fafa7636/c0fbff821a564df6a3251a18dccfbd6e [2020-07-20 22:09:10,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:09:10,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:09:10,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:09:10,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:09:10,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:09:10,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:09:10" (1/1) ... [2020-07-20 22:09:10,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e0f48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:10, skipping insertion in model container [2020-07-20 22:09:10,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:09:10" (1/1) ... [2020-07-20 22:09:10,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:09:10,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:09:11,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:09:11,435 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:09:11,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:09:11,599 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:09:11,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11 WrapperNode [2020-07-20 22:09:11,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:09:11,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:09:11,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:09:11,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:09:11,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (1/1) ... [2020-07-20 22:09:11,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (1/1) ... [2020-07-20 22:09:11,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (1/1) ... [2020-07-20 22:09:11,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (1/1) ... [2020-07-20 22:09:11,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (1/1) ... [2020-07-20 22:09:11,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (1/1) ... [2020-07-20 22:09:11,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (1/1) ... [2020-07-20 22:09:11,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:09:11,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:09:11,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:09:11,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:09:11,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (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 [2020-07-20 22:09:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:09:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:09:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:09:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:09:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:09:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:09:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:09:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:09:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:09:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:09:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:09:13,313 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:09:13,313 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:09:13,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:09:13 BoogieIcfgContainer [2020-07-20 22:09:13,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:09:13,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:09:13,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:09:13,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:09:13,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:09:10" (1/3) ... [2020-07-20 22:09:13,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9131829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:09:13, skipping insertion in model container [2020-07-20 22:09:13,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:09:11" (2/3) ... [2020-07-20 22:09:13,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9131829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:09:13, skipping insertion in model container [2020-07-20 22:09:13,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:09:13" (3/3) ... [2020-07-20 22:09:13,331 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-07-20 22:09:13,343 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:09:13,353 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:09:13,371 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:09:13,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:09:13,399 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:09:13,399 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:09:13,400 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:09:13,400 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:09:13,400 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:09:13,400 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:09:13,400 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:09:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-20 22:09:13,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 22:09:13,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:13,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:13,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:13,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:13,456 INFO L82 PathProgramCache]: Analyzing trace with hash -281448013, now seen corresponding path program 1 times [2020-07-20 22:09:13,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:13,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093757128] [2020-07-20 22:09:13,467 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 [2020-07-20 22:09:13,586 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:13,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:13,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:09:13,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:09:13,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:09:13,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093757128] [2020-07-20 22:09:13,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:09:13,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:09:13,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365791885] [2020-07-20 22:09:13,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:09:13,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:13,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:09:13,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:13,694 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-07-20 22:09:15,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:15,133 INFO L93 Difference]: Finished difference Result 688 states and 1223 transitions. [2020-07-20 22:09:15,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:09:15,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-20 22:09:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:15,173 INFO L225 Difference]: With dead ends: 688 [2020-07-20 22:09:15,174 INFO L226 Difference]: Without dead ends: 372 [2020-07-20 22:09:15,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:15,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-07-20 22:09:15,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2020-07-20 22:09:15,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-07-20 22:09:15,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 560 transitions. [2020-07-20 22:09:15,260 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 560 transitions. Word has length 56 [2020-07-20 22:09:15,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:15,261 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 560 transitions. [2020-07-20 22:09:15,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:09:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 560 transitions. [2020-07-20 22:09:15,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 22:09:15,271 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:15,271 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:15,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:15,473 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:15,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:15,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1442467785, now seen corresponding path program 1 times [2020-07-20 22:09:15,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:15,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613893281] [2020-07-20 22:09:15,476 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 [2020-07-20 22:09:15,614 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:15,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:15,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:09:15,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:15,695 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:09:15,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:09:15,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613893281] [2020-07-20 22:09:15,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:09:15,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:09:15,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711071220] [2020-07-20 22:09:15,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:09:15,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:15,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:09:15,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:15,701 INFO L87 Difference]: Start difference. First operand 372 states and 560 transitions. Second operand 3 states. [2020-07-20 22:09:16,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:16,812 INFO L93 Difference]: Finished difference Result 556 states and 862 transitions. [2020-07-20 22:09:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:09:16,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 22:09:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:16,817 INFO L225 Difference]: With dead ends: 556 [2020-07-20 22:09:16,817 INFO L226 Difference]: Without dead ends: 554 [2020-07-20 22:09:16,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-07-20 22:09:16,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2020-07-20 22:09:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-07-20 22:09:16,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 860 transitions. [2020-07-20 22:09:16,856 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 860 transitions. Word has length 135 [2020-07-20 22:09:16,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:16,857 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 860 transitions. [2020-07-20 22:09:16,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:09:16,857 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 860 transitions. [2020-07-20 22:09:16,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 22:09:16,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:16,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:17,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:17,077 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:17,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:17,077 INFO L82 PathProgramCache]: Analyzing trace with hash 123351809, now seen corresponding path program 1 times [2020-07-20 22:09:17,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:17,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [893291653] [2020-07-20 22:09:17,080 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 [2020-07-20 22:09:17,192 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:17,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:17,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:09:17,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:17,253 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 22:09:17,254 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:09:17,255 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:09:17,281 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:09:17,328 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:09:17,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:09:17,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [893291653] [2020-07-20 22:09:17,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:09:17,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:09:17,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033423422] [2020-07-20 22:09:17,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:09:17,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:17,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:09:17,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:09:17,342 INFO L87 Difference]: Start difference. First operand 554 states and 860 transitions. Second operand 5 states. [2020-07-20 22:09:19,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:19,090 INFO L93 Difference]: Finished difference Result 1670 states and 2622 transitions. [2020-07-20 22:09:19,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:09:19,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-07-20 22:09:19,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:19,098 INFO L225 Difference]: With dead ends: 1670 [2020-07-20 22:09:19,098 INFO L226 Difference]: Without dead ends: 1122 [2020-07-20 22:09:19,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:09:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2020-07-20 22:09:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1108. [2020-07-20 22:09:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1108 states. [2020-07-20 22:09:19,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1494 transitions. [2020-07-20 22:09:19,168 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1494 transitions. Word has length 139 [2020-07-20 22:09:19,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:19,168 INFO L479 AbstractCegarLoop]: Abstraction has 1108 states and 1494 transitions. [2020-07-20 22:09:19,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:09:19,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1494 transitions. [2020-07-20 22:09:19,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-07-20 22:09:19,175 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:19,175 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:19,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:19,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:19,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:19,388 INFO L82 PathProgramCache]: Analyzing trace with hash 837695806, now seen corresponding path program 1 times [2020-07-20 22:09:19,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:19,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289067578] [2020-07-20 22:09:19,389 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 [2020-07-20 22:09:19,497 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:19,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:19,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:09:19,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-20 22:09:19,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:09:19,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289067578] [2020-07-20 22:09:19,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:09:19,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:09:19,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311225396] [2020-07-20 22:09:19,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:09:19,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:19,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:09:19,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:09:19,620 INFO L87 Difference]: Start difference. First operand 1108 states and 1494 transitions. Second operand 5 states. [2020-07-20 22:09:21,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:21,157 INFO L93 Difference]: Finished difference Result 2620 states and 3803 transitions. [2020-07-20 22:09:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:09:21,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-07-20 22:09:21,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:21,170 INFO L225 Difference]: With dead ends: 2620 [2020-07-20 22:09:21,171 INFO L226 Difference]: Without dead ends: 1700 [2020-07-20 22:09:21,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:09:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-07-20 22:09:21,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1670. [2020-07-20 22:09:21,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-07-20 22:09:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2228 transitions. [2020-07-20 22:09:21,237 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2228 transitions. Word has length 209 [2020-07-20 22:09:21,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:21,238 INFO L479 AbstractCegarLoop]: Abstraction has 1670 states and 2228 transitions. [2020-07-20 22:09:21,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:09:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2228 transitions. [2020-07-20 22:09:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-07-20 22:09:21,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:21,244 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:21,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:21,458 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:21,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:21,459 INFO L82 PathProgramCache]: Analyzing trace with hash -657639750, now seen corresponding path program 1 times [2020-07-20 22:09:21,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:21,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747232818] [2020-07-20 22:09:21,460 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 [2020-07-20 22:09:21,568 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:21,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:21,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:09:21,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:21,638 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 22:09:21,639 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:09:21,641 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:09:21,666 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:09:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:09:21,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:09:21,916 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-07-20 22:09:21,966 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-20 22:09:21,967 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:09:21,968 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-20 22:09:21,969 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:09:21,973 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:09:21,974 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:09:21,978 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:09:21,980 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:09:22,000 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:09:22,002 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-20 22:09:22,090 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:09:22,091 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:09:22,157 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 22:09:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 99 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:09:22,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747232818] [2020-07-20 22:09:22,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:09:22,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-07-20 22:09:22,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959404410] [2020-07-20 22:09:22,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 22:09:22,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:22,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 22:09:22,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-20 22:09:22,365 INFO L87 Difference]: Start difference. First operand 1670 states and 2228 transitions. Second operand 13 states. [2020-07-20 22:09:26,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:26,375 INFO L93 Difference]: Finished difference Result 4674 states and 6586 transitions. [2020-07-20 22:09:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 22:09:26,377 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 223 [2020-07-20 22:09:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:26,397 INFO L225 Difference]: With dead ends: 4674 [2020-07-20 22:09:26,397 INFO L226 Difference]: Without dead ends: 3192 [2020-07-20 22:09:26,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2020-07-20 22:09:26,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2020-07-20 22:09:26,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 2804. [2020-07-20 22:09:26,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2804 states. [2020-07-20 22:09:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 3698 transitions. [2020-07-20 22:09:26,517 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 3698 transitions. Word has length 223 [2020-07-20 22:09:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:26,519 INFO L479 AbstractCegarLoop]: Abstraction has 2804 states and 3698 transitions. [2020-07-20 22:09:26,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 22:09:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 3698 transitions. [2020-07-20 22:09:26,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-07-20 22:09:26,524 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:26,526 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:26,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:26,740 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:26,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:26,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2106362550, now seen corresponding path program 1 times [2020-07-20 22:09:26,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:26,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110626346] [2020-07-20 22:09:26,742 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 [2020-07-20 22:09:26,865 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:26,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:26,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:09:26,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-07-20 22:09:26,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:09:26,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110626346] [2020-07-20 22:09:26,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:09:26,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:09:26,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703460858] [2020-07-20 22:09:26,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:09:26,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:26,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:09:26,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:26,933 INFO L87 Difference]: Start difference. First operand 2804 states and 3698 transitions. Second operand 3 states. [2020-07-20 22:09:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:27,878 INFO L93 Difference]: Finished difference Result 3716 states and 4937 transitions. [2020-07-20 22:09:27,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:09:27,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-07-20 22:09:27,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:27,899 INFO L225 Difference]: With dead ends: 3716 [2020-07-20 22:09:27,899 INFO L226 Difference]: Without dead ends: 3714 [2020-07-20 22:09:27,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2020-07-20 22:09:27,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 2802. [2020-07-20 22:09:27,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2802 states. [2020-07-20 22:09:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3609 transitions. [2020-07-20 22:09:27,988 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3609 transitions. Word has length 273 [2020-07-20 22:09:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:27,988 INFO L479 AbstractCegarLoop]: Abstraction has 2802 states and 3609 transitions. [2020-07-20 22:09:27,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:09:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3609 transitions. [2020-07-20 22:09:28,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2020-07-20 22:09:28,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:28,003 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:28,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:28,217 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:28,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:28,217 INFO L82 PathProgramCache]: Analyzing trace with hash 313381864, now seen corresponding path program 1 times [2020-07-20 22:09:28,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:28,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717117515] [2020-07-20 22:09:28,219 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 [2020-07-20 22:09:28,487 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:28,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:28,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:09:28,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2020-07-20 22:09:28,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:09:28,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717117515] [2020-07-20 22:09:28,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:09:28,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:09:28,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835848479] [2020-07-20 22:09:28,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:09:28,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:28,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:09:28,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:28,654 INFO L87 Difference]: Start difference. First operand 2802 states and 3609 transitions. Second operand 3 states. [2020-07-20 22:09:29,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:29,559 INFO L93 Difference]: Finished difference Result 3902 states and 5058 transitions. [2020-07-20 22:09:29,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:09:29,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 471 [2020-07-20 22:09:29,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:29,578 INFO L225 Difference]: With dead ends: 3902 [2020-07-20 22:09:29,578 INFO L226 Difference]: Without dead ends: 3900 [2020-07-20 22:09:29,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:29,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2020-07-20 22:09:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 2802. [2020-07-20 22:09:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2802 states. [2020-07-20 22:09:29,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3609 transitions. [2020-07-20 22:09:29,678 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3609 transitions. Word has length 471 [2020-07-20 22:09:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:29,679 INFO L479 AbstractCegarLoop]: Abstraction has 2802 states and 3609 transitions. [2020-07-20 22:09:29,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:09:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3609 transitions. [2020-07-20 22:09:29,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2020-07-20 22:09:29,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:09:29,700 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:09:29,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:29,906 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:09:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:09:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash -347572093, now seen corresponding path program 1 times [2020-07-20 22:09:29,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:09:29,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540790562] [2020-07-20 22:09:29,908 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 [2020-07-20 22:09:30,288 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:09:30,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:09:30,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:09:30,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:09:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2020-07-20 22:09:30,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:09:30,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540790562] [2020-07-20 22:09:30,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:09:30,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:09:30,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111231948] [2020-07-20 22:09:30,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:09:30,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:09:30,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:09:30,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:30,535 INFO L87 Difference]: Start difference. First operand 2802 states and 3609 transitions. Second operand 3 states. [2020-07-20 22:09:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:09:31,474 INFO L93 Difference]: Finished difference Result 6152 states and 7942 transitions. [2020-07-20 22:09:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:09:31,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 554 [2020-07-20 22:09:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:09:31,476 INFO L225 Difference]: With dead ends: 6152 [2020-07-20 22:09:31,476 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:09:31,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:09:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:09:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:09:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:09:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:09:31,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 554 [2020-07-20 22:09:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:09:31,489 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:09:31,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:09:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:09:31,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:09:31,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:09:31,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:09:32,540 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 47 [2020-07-20 22:09:32,660 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2020-07-20 22:09:32,778 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2020-07-20 22:09:32,782 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:09:32,782 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= ~a24~0 |old(~a24~0)|) (<= ~a15~0 |old(~a15~0)|) (<= |old(~a21~0)| ~a21~0)) [2020-07-20 22:09:32,782 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:09:32,782 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-20 22:09:32,783 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-20 22:09:32,783 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,783 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,783 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,783 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-20 22:09:32,783 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 22:09:32,783 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 22:09:32,784 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 22:09:32,784 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-20 22:09:32,784 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-20 22:09:32,784 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-20 22:09:32,784 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-20 22:09:32,784 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,784 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-20 22:09:32,785 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-20 22:09:32,786 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-20 22:09:32,787 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-20 22:09:32,787 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-20 22:09:32,787 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-20 22:09:32,787 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,787 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,787 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,787 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,788 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-20 22:09:32,789 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 22:09:32,790 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,791 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-20 22:09:32,792 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse1 (<= ~a12~0 |old(~a12~0)|)) (.cse2 (<= ~a24~0 |old(~a24~0)|)) (.cse3 (<= ~a15~0 |old(~a15~0)|)) (.cse4 (<= |old(~a21~0)| ~a21~0))) (let ((.cse0 (and .cse1 .cse2 .cse3 .cse4))) (and (or (not (<= |old(~a21~0)| 7)) (<= ~a21~0 7)) (or (not (<= |old(~a24~0)| 1)) (not (< |old(~a12~0)| 81)) .cse0) (or (not (<= |old(~a15~0)| 5)) .cse0) (or (and (not (<= |old(~a21~0)| 9)) (not (<= 7 |old(~a15~0)|))) (and .cse1 .cse2 .cse3 (<= ~a21~0 9) .cse4) (and .cse1 (<= 7 ~a15~0) .cse2 .cse3 .cse4)) (or (not (<= 8 |old(~a15~0)|)) (<= 8 ~a15~0))))) [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 22:09:32,793 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 22:09:32,794 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-20 22:09:32,795 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-20 22:09:32,796 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,797 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,798 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 22:09:32,799 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,800 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,801 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-20 22:09:32,802 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,803 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-20 22:09:32,804 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 22:09:32,804 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 22:09:32,804 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 22:09:32,804 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-20 22:09:32,804 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-20 22:09:32,804 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-20 22:09:32,804 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 22:09:32,805 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-20 22:09:32,806 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:09:32,806 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a24~0 1) (<= (+ ~a12~0 49) 0) (<= ~a15~0 8) (<= 7 ~a21~0) (<= ~a21~0 7) (<= 8 ~a15~0)) [2020-07-20 22:09:32,806 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:09:32,806 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:09:32,806 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (<= |old(~a24~0)| 1)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a15~0)| 8)) (and (<= ~a12~0 |old(~a12~0)|) (<= ~a24~0 |old(~a24~0)|) (<= ~a15~0 8) (<= ~a21~0 7) (<= |old(~a21~0)| ~a21~0) (<= 8 ~a15~0)) (not (<= |old(~a21~0)| 7)) (not (<= 8 |old(~a15~0)|))) [2020-07-20 22:09:32,806 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-20 22:09:32,807 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (or (not (<= |old(~a24~0)| 1)) (and (< ~a24~0 2) (< ~a12~0 81)) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7)) (not (<= 8 |old(~a15~0)|)) (<= ~a21~0 9)) [2020-07-20 22:09:32,807 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-20 22:09:32,807 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-20 22:09:32,807 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (or (not (<= |old(~a24~0)| 1)) (and (< ~a24~0 2) (< ~a12~0 81)) (<= 7 ~a15~0) (<= ~a15~0 5) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= 7 |old(~a21~0)|)) (not (<= |old(~a15~0)| 8)) (not (<= |old(~a21~0)| 7)) (not (<= 8 |old(~a15~0)|)) (<= ~a21~0 9)) [2020-07-20 22:09:32,807 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-20 22:09:32,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:09:32 BoogieIcfgContainer [2020-07-20 22:09:32,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:09:32,838 INFO L168 Benchmark]: Toolchain (without parser) took 22104.08 ms. Allocated memory was 137.9 MB in the beginning and 558.4 MB in the end (delta: 420.5 MB). Free memory was 100.9 MB in the beginning and 183.6 MB in the end (delta: -82.7 MB). Peak memory consumption was 337.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:09:32,839 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 22:09:32,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 870.61 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 100.5 MB in the beginning and 168.2 MB in the end (delta: -67.7 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:09:32,840 INFO L168 Benchmark]: Boogie Preprocessor took 160.61 ms. Allocated memory is still 205.5 MB. Free memory was 168.2 MB in the beginning and 162.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-07-20 22:09:32,841 INFO L168 Benchmark]: RCFGBuilder took 1557.58 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 162.4 MB in the beginning and 156.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-07-20 22:09:32,842 INFO L168 Benchmark]: TraceAbstraction took 19507.61 ms. Allocated memory was 237.5 MB in the beginning and 558.4 MB in the end (delta: 320.9 MB). Free memory was 156.2 MB in the beginning and 183.6 MB in the end (delta: -27.4 MB). Peak memory consumption was 293.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:09:32,857 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 870.61 ms. Allocated memory was 137.9 MB in the beginning and 205.5 MB in the end (delta: 67.6 MB). Free memory was 100.5 MB in the beginning and 168.2 MB in the end (delta: -67.7 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 160.61 ms. Allocated memory is still 205.5 MB. Free memory was 168.2 MB in the beginning and 162.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1557.58 ms. Allocated memory was 205.5 MB in the beginning and 237.5 MB in the end (delta: 32.0 MB). Free memory was 162.4 MB in the beginning and 156.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19507.61 ms. Allocated memory was 237.5 MB in the beginning and 558.4 MB in the end (delta: 320.9 MB). Free memory was 156.2 MB in the beginning and 183.6 MB in the end (delta: -27.4 MB). Peak memory consumption was 293.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((((((!(\old(a24) <= 1) || (a24 < 2 && a12 < 81)) || 7 <= a15) || a15 <= 5) || !(\old(a12) + 49 <= 0)) || !(7 <= \old(a21))) || !(\old(a15) <= 8)) || !(\old(a21) <= 7)) || !(8 <= \old(a15))) || a21 <= 9 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.2s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 526 SDtfs, 3536 SDslu, 228 SDs, 0 SdLazy, 6707 SolverSat, 1757 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2293 GetRequests, 2252 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2804occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2442 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 56 PreInvPairs, 94 NumberOfFragments, 266 HoareAnnotationTreeSize, 56 FomulaSimplifications, 3689 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1561 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2060 NumberOfCodeBlocks, 2060 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 2274 ConstructedInterpolants, 0 QuantifiedInterpolants, 1821494 SizeOfPredicates, 18 NumberOfNonLiveVariables, 3505 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 2263/2347 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...