/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:28:45,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:28:45,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:28:45,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:28:45,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:28:45,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:28:45,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:28:45,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:28:45,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:28:45,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:28:45,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:28:45,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:28:45,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:28:45,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:28:45,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:28:45,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:28:45,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:28:45,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:28:45,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:28:45,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:28:45,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:28:45,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:28:45,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:28:45,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:28:45,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:28:45,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:28:45,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:28:45,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:28:45,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:28:45,335 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:28:45,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:28:45,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:28:45,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:28:45,337 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:28:45,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:28:45,338 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:28:45,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:28:45,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:28:45,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:28:45,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:28:45,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:28:45,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:28:45,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:28:45,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:28:45,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:28:45,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:28:45,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:28:45,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:28:45,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:28:45,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:28:45,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:28:45,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:28:45,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:28:45,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:28:45,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:28:45,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:45,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:28:45,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:28:45,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:28:45,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:28:45,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:28:45,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:28:45,630 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:28:45,631 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:28:45,631 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-21 11:28:45,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e664fde65/6c55f9c68c5f4bdda89f08e4f725bafe/FLAGaea537129 [2020-07-21 11:28:46,199 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:28:46,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-21 11:28:46,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e664fde65/6c55f9c68c5f4bdda89f08e4f725bafe/FLAGaea537129 [2020-07-21 11:28:46,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e664fde65/6c55f9c68c5f4bdda89f08e4f725bafe [2020-07-21 11:28:46,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:28:46,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:28:46,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:46,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:28:46,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:28:46,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:46" (1/1) ... [2020-07-21 11:28:46,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392e5b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:46, skipping insertion in model container [2020-07-21 11:28:46,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:28:46" (1/1) ... [2020-07-21 11:28:46,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:28:46,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:28:47,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:47,099 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:28:47,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:28:47,229 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:28:47,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47 WrapperNode [2020-07-21 11:28:47,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:28:47,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:28:47,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:28:47,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:28:47,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... [2020-07-21 11:28:47,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... [2020-07-21 11:28:47,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... [2020-07-21 11:28:47,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... [2020-07-21 11:28:47,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... [2020-07-21 11:28:47,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... [2020-07-21 11:28:47,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... [2020-07-21 11:28:47,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:28:47,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:28:47,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:28:47,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:28:47,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:28:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:28:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:28:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:28:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:28:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:28:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:28:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:28:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:28:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:28:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:28:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:28:48,600 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:28:48,601 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:28:48,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:48 BoogieIcfgContainer [2020-07-21 11:28:48,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:28:48,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:28:48,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:28:48,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:28:48,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:28:46" (1/3) ... [2020-07-21 11:28:48,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338fbff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:48, skipping insertion in model container [2020-07-21 11:28:48,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:28:47" (2/3) ... [2020-07-21 11:28:48,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338fbff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:48, skipping insertion in model container [2020-07-21 11:28:48,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:48" (3/3) ... [2020-07-21 11:28:48,619 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2020-07-21 11:28:48,633 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:28:48,643 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:28:48,661 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:28:48,694 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:28:48,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:28:48,695 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:28:48,695 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:28:48,696 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:28:48,696 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:28:48,696 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:28:48,696 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:28:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:28:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 11:28:48,740 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:48,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:48,742 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:48,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:48,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1666327721, now seen corresponding path program 1 times [2020-07-21 11:28:48,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:48,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818867868] [2020-07-21 11:28:48,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:48,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:48,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:49,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:49,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818867868] [2020-07-21 11:28:49,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:49,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:49,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342653093] [2020-07-21 11:28:49,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:49,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:49,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:49,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:49,039 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:28:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:50,017 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 11:28:50,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:50,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-21 11:28:50,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:50,037 INFO L225 Difference]: With dead ends: 619 [2020-07-21 11:28:50,037 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 11:28:50,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:50,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 11:28:50,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 11:28:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 11:28:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 11:28:50,117 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 111 [2020-07-21 11:28:50,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:50,118 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 11:28:50,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 11:28:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 11:28:50,123 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:50,123 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:50,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:50,338 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:50,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1096762264, now seen corresponding path program 1 times [2020-07-21 11:28:50,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:50,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217565304] [2020-07-21 11:28:50,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:50,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 11:28:50,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:50,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 11:28:50,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217565304] [2020-07-21 11:28:50,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 11:28:50,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 11:28:50,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329390654] [2020-07-21 11:28:50,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 11:28:50,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:50,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 11:28:50,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:50,726 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-21 11:28:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:51,415 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-21 11:28:51,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 11:28:51,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-07-21 11:28:51,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:51,430 INFO L225 Difference]: With dead ends: 941 [2020-07-21 11:28:51,431 INFO L226 Difference]: Without dead ends: 628 [2020-07-21 11:28:51,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-21 11:28:51,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-21 11:28:51,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-21 11:28:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-21 11:28:51,479 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 120 [2020-07-21 11:28:51,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:51,480 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-21 11:28:51,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 11:28:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-21 11:28:51,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 11:28:51,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:51,485 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:51,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:51,701 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:51,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:51,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1858974237, now seen corresponding path program 1 times [2020-07-21 11:28:51,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:51,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532643767] [2020-07-21 11:28:51,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:51,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:51,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:51,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:51,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532643767] [2020-07-21 11:28:51,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:51,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:51,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815796179] [2020-07-21 11:28:51,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:51,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:51,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:51,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:51,874 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-21 11:28:52,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:52,587 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-21 11:28:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:52,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-21 11:28:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:52,605 INFO L225 Difference]: With dead ends: 1543 [2020-07-21 11:28:52,606 INFO L226 Difference]: Without dead ends: 921 [2020-07-21 11:28:52,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:52,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-21 11:28:52,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-21 11:28:52,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-21 11:28:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-21 11:28:52,645 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 128 [2020-07-21 11:28:52,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:52,646 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-21 11:28:52,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:52,647 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-21 11:28:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 11:28:52,651 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:52,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:52,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:52,860 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:52,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:52,861 INFO L82 PathProgramCache]: Analyzing trace with hash 459938663, now seen corresponding path program 1 times [2020-07-21 11:28:52,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:52,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787322112] [2020-07-21 11:28:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:52,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:52,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:53,038 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 11:28:53,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 11:28:53,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787322112] [2020-07-21 11:28:53,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:53,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 11:28:53,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689571241] [2020-07-21 11:28:53,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:53,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:53,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:53,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:53,126 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-21 11:28:53,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:53,942 INFO L93 Difference]: Finished difference Result 2773 states and 3861 transitions. [2020-07-21 11:28:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:28:53,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-07-21 11:28:53,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:53,955 INFO L225 Difference]: With dead ends: 2773 [2020-07-21 11:28:53,955 INFO L226 Difference]: Without dead ends: 1860 [2020-07-21 11:28:53,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 262 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:53,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-07-21 11:28:54,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1828. [2020-07-21 11:28:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-07-21 11:28:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2448 transitions. [2020-07-21 11:28:54,027 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2448 transitions. Word has length 134 [2020-07-21 11:28:54,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:54,028 INFO L479 AbstractCegarLoop]: Abstraction has 1828 states and 2448 transitions. [2020-07-21 11:28:54,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:28:54,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2448 transitions. [2020-07-21 11:28:54,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 11:28:54,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:54,034 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:54,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:54,249 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:54,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:54,250 INFO L82 PathProgramCache]: Analyzing trace with hash 349804708, now seen corresponding path program 2 times [2020-07-21 11:28:54,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:54,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405355598] [2020-07-21 11:28:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:54,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:54,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:54,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:28:54,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405355598] [2020-07-21 11:28:54,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:54,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:54,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001840640] [2020-07-21 11:28:54,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:54,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:54,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:54,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:54,469 INFO L87 Difference]: Start difference. First operand 1828 states and 2448 transitions. Second operand 7 states. [2020-07-21 11:28:56,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:56,158 INFO L93 Difference]: Finished difference Result 4385 states and 6475 transitions. [2020-07-21 11:28:56,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 11:28:56,159 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-21 11:28:56,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:56,181 INFO L225 Difference]: With dead ends: 4385 [2020-07-21 11:28:56,182 INFO L226 Difference]: Without dead ends: 2563 [2020-07-21 11:28:56,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 11:28:56,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2020-07-21 11:28:56,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2468. [2020-07-21 11:28:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2468 states. [2020-07-21 11:28:56,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3122 transitions. [2020-07-21 11:28:56,280 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3122 transitions. Word has length 137 [2020-07-21 11:28:56,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:56,280 INFO L479 AbstractCegarLoop]: Abstraction has 2468 states and 3122 transitions. [2020-07-21 11:28:56,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:56,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3122 transitions. [2020-07-21 11:28:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 11:28:56,288 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:56,288 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:56,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:56,505 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:56,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:56,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1845831279, now seen corresponding path program 1 times [2020-07-21 11:28:56,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:56,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941229143] [2020-07-21 11:28:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:56,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:56,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:56,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:56,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941229143] [2020-07-21 11:28:56,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:56,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:56,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27691125] [2020-07-21 11:28:56,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:56,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:56,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:56,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:56,706 INFO L87 Difference]: Start difference. First operand 2468 states and 3122 transitions. Second operand 3 states. [2020-07-21 11:28:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:57,345 INFO L93 Difference]: Finished difference Result 5522 states and 7106 transitions. [2020-07-21 11:28:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:57,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-21 11:28:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:57,376 INFO L225 Difference]: With dead ends: 5522 [2020-07-21 11:28:57,376 INFO L226 Difference]: Without dead ends: 3060 [2020-07-21 11:28:57,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-07-21 11:28:57,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3054. [2020-07-21 11:28:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2020-07-21 11:28:57,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3801 transitions. [2020-07-21 11:28:57,510 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3801 transitions. Word has length 138 [2020-07-21 11:28:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:57,511 INFO L479 AbstractCegarLoop]: Abstraction has 3054 states and 3801 transitions. [2020-07-21 11:28:57,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:57,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3801 transitions. [2020-07-21 11:28:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 11:28:57,529 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:57,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:57,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:57,745 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:57,745 INFO L82 PathProgramCache]: Analyzing trace with hash -161267733, now seen corresponding path program 1 times [2020-07-21 11:28:57,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:57,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734522230] [2020-07-21 11:28:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:57,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:28:57,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:57,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:57,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734522230] [2020-07-21 11:28:57,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:57,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:28:57,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64842197] [2020-07-21 11:28:57,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:57,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:57,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:57,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:57,871 INFO L87 Difference]: Start difference. First operand 3054 states and 3801 transitions. Second operand 5 states. [2020-07-21 11:28:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:58,787 INFO L93 Difference]: Finished difference Result 8247 states and 10820 transitions. [2020-07-21 11:28:58,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:58,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-07-21 11:28:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:58,824 INFO L225 Difference]: With dead ends: 8247 [2020-07-21 11:28:58,825 INFO L226 Difference]: Without dead ends: 5199 [2020-07-21 11:28:58,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:28:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2020-07-21 11:28:58,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5127. [2020-07-21 11:28:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5127 states. [2020-07-21 11:28:58,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6247 transitions. [2020-07-21 11:28:58,989 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6247 transitions. Word has length 142 [2020-07-21 11:28:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:58,989 INFO L479 AbstractCegarLoop]: Abstraction has 5127 states and 6247 transitions. [2020-07-21 11:28:58,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:28:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6247 transitions. [2020-07-21 11:28:59,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-21 11:28:59,010 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:59,010 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:59,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:59,224 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:59,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:59,224 INFO L82 PathProgramCache]: Analyzing trace with hash 455788955, now seen corresponding path program 1 times [2020-07-21 11:28:59,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:59,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116094236] [2020-07-21 11:28:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:59,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:59,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:28:59,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 11:28:59,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116094236] [2020-07-21 11:28:59,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:59,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:59,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081615925] [2020-07-21 11:28:59,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:59,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:59,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:59,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:59,514 INFO L87 Difference]: Start difference. First operand 5127 states and 6247 transitions. Second operand 6 states. [2020-07-21 11:28:59,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:59,988 INFO L93 Difference]: Finished difference Result 9839 states and 12352 transitions. [2020-07-21 11:28:59,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:28:59,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2020-07-21 11:28:59,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:00,015 INFO L225 Difference]: With dead ends: 9839 [2020-07-21 11:29:00,015 INFO L226 Difference]: Without dead ends: 4718 [2020-07-21 11:29:00,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:00,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2020-07-21 11:29:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4652. [2020-07-21 11:29:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-07-21 11:29:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 5508 transitions. [2020-07-21 11:29:00,161 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 5508 transitions. Word has length 211 [2020-07-21 11:29:00,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:00,161 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 5508 transitions. [2020-07-21 11:29:00,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 5508 transitions. [2020-07-21 11:29:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-21 11:29:00,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:00,181 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:00,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:00,395 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:00,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:00,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1716455552, now seen corresponding path program 1 times [2020-07-21 11:29:00,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:00,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035540749] [2020-07-21 11:29:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:00,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:00,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-07-21 11:29:00,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:00,802 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 133 proven. 54 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-21 11:29:00,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035540749] [2020-07-21 11:29:00,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:00,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:29:00,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620640286] [2020-07-21 11:29:00,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:29:00,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:00,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:29:00,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:29:00,808 INFO L87 Difference]: Start difference. First operand 4652 states and 5508 transitions. Second operand 6 states. [2020-07-21 11:29:01,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:01,701 INFO L93 Difference]: Finished difference Result 8881 states and 10565 transitions. [2020-07-21 11:29:01,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:01,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-07-21 11:29:01,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:01,721 INFO L225 Difference]: With dead ends: 8881 [2020-07-21 11:29:01,721 INFO L226 Difference]: Without dead ends: 4379 [2020-07-21 11:29:01,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:01,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2020-07-21 11:29:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4375. [2020-07-21 11:29:01,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2020-07-21 11:29:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5103 transitions. [2020-07-21 11:29:01,845 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5103 transitions. Word has length 241 [2020-07-21 11:29:01,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:01,845 INFO L479 AbstractCegarLoop]: Abstraction has 4375 states and 5103 transitions. [2020-07-21 11:29:01,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:29:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5103 transitions. [2020-07-21 11:29:01,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-07-21 11:29:01,859 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:01,859 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:02,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:02,074 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:02,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:02,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1657714952, now seen corresponding path program 1 times [2020-07-21 11:29:02,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:02,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834523167] [2020-07-21 11:29:02,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:02,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:02,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 11:29:02,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 11:29:02,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834523167] [2020-07-21 11:29:02,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:02,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:02,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683629965] [2020-07-21 11:29:02,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:02,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:02,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:02,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:02,444 INFO L87 Difference]: Start difference. First operand 4375 states and 5103 transitions. Second operand 7 states. [2020-07-21 11:29:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:03,618 INFO L93 Difference]: Finished difference Result 10612 states and 12330 transitions. [2020-07-21 11:29:03,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:29:03,618 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-07-21 11:29:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:03,648 INFO L225 Difference]: With dead ends: 10612 [2020-07-21 11:29:03,648 INFO L226 Difference]: Without dead ends: 6387 [2020-07-21 11:29:03,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:03,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2020-07-21 11:29:03,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 6097. [2020-07-21 11:29:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6097 states. [2020-07-21 11:29:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6097 states to 6097 states and 6840 transitions. [2020-07-21 11:29:03,853 INFO L78 Accepts]: Start accepts. Automaton has 6097 states and 6840 transitions. Word has length 245 [2020-07-21 11:29:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:03,854 INFO L479 AbstractCegarLoop]: Abstraction has 6097 states and 6840 transitions. [2020-07-21 11:29:03,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6097 states and 6840 transitions. [2020-07-21 11:29:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-21 11:29:03,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:03,869 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:04,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:04,085 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:04,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:04,086 INFO L82 PathProgramCache]: Analyzing trace with hash -186224720, now seen corresponding path program 1 times [2020-07-21 11:29:04,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:04,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1188382238] [2020-07-21 11:29:04,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:04,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:29:04,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 11:29:04,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 186 proven. 36 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-21 11:29:04,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1188382238] [2020-07-21 11:29:04,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:04,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:04,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930579717] [2020-07-21 11:29:04,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:04,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:04,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:04,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:04,383 INFO L87 Difference]: Start difference. First operand 6097 states and 6840 transitions. Second operand 7 states. [2020-07-21 11:29:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:05,621 INFO L93 Difference]: Finished difference Result 11181 states and 12535 transitions. [2020-07-21 11:29:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:29:05,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-07-21 11:29:05,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:05,640 INFO L225 Difference]: With dead ends: 11181 [2020-07-21 11:29:05,640 INFO L226 Difference]: Without dead ends: 5503 [2020-07-21 11:29:05,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 499 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-07-21 11:29:05,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5497. [2020-07-21 11:29:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5497 states. [2020-07-21 11:29:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6061 transitions. [2020-07-21 11:29:05,749 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6061 transitions. Word has length 252 [2020-07-21 11:29:05,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:05,749 INFO L479 AbstractCegarLoop]: Abstraction has 5497 states and 6061 transitions. [2020-07-21 11:29:05,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:05,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6061 transitions. [2020-07-21 11:29:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-21 11:29:05,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:29:05,764 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:29:05,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:05,980 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:29:05,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:29:05,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1332464188, now seen corresponding path program 1 times [2020-07-21 11:29:05,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:29:05,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107908366] [2020-07-21 11:29:05,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:29:06,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:29:06,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:29:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-21 11:29:06,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:29:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-21 11:29:06,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107908366] [2020-07-21 11:29:06,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:29:06,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:29:06,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111997191] [2020-07-21 11:29:06,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:29:06,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:29:06,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:29:06,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:29:06,291 INFO L87 Difference]: Start difference. First operand 5497 states and 6061 transitions. Second operand 7 states. [2020-07-21 11:29:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:29:07,447 INFO L93 Difference]: Finished difference Result 10238 states and 11289 transitions. [2020-07-21 11:29:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:29:07,448 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 277 [2020-07-21 11:29:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:29:07,448 INFO L225 Difference]: With dead ends: 10238 [2020-07-21 11:29:07,448 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:29:07,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:29:07,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:29:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:29:07,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:29:07,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:29:07,470 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 277 [2020-07-21 11:29:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:29:07,470 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:29:07,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:29:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:29:07,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:29:07,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:29:07,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:29:08,294 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-21 11:29:08,494 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-21 11:29:10,234 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 157 DAG size of output: 82 [2020-07-21 11:29:11,010 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-21 11:29:11,740 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-21 11:29:11,745 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:11,746 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 11:29:11,746 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:11,746 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,746 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,746 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,747 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,747 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,747 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:29:11,747 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:29:11,747 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,748 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:29:11,749 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:29:11,750 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:29:11,750 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:29:11,750 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:29:11,751 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,752 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,752 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,752 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,752 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,752 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 487) no Hoare annotation was computed. [2020-07-21 11:29:11,752 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:29:11,752 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:29:11,753 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:29:11,754 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:29:11,755 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:29:11,756 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:29:11,757 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:29:11,758 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:29:11,758 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:29:11,758 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:29:11,758 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:29:11,758 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,758 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,758 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:29:11,759 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:29:11,760 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,761 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,762 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,762 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:29:11,762 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:29:11,762 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:29:11,762 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:29:11,762 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:29:11,762 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,763 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:29:11,764 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:29:11,765 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:29:11,766 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,766 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,766 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,767 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse25 (<= ~a11~0 0))) (let ((.cse18 (= 1 ~a25~0)) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse22 (or .cse25 (< 0 |old(~a11~0)|))) (.cse23 (<= ~a25~0 |old(~a25~0)|)) (.cse26 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (<= ~a17~0 8)) (.cse14 (<= 8 ~a17~0)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse17 (<= |old(~a28~0)| ~a28~0)) (.cse27 (= ~a25~0 |old(~a25~0)|))) (let ((.cse9 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse27)) (.cse1 (and .cse21 .cse26 .cse22 .cse23 .cse16 .cse17)) (.cse19 (and .cse25 .cse26 .cse13 .cse14 .cse16 .cse17 .cse18)) (.cse5 (not (<= |old(~a17~0)| 7))) (.cse24 (<= ~a28~0 9)) (.cse12 (not (= 1 |old(~a25~0)|))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse2 (not (<= |old(~a28~0)| 10))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse15 (<= ~a28~0 10)) (.cse6 (not (<= |old(~a28~0)| 9))) (.cse7 (not (<= 8 |old(~a17~0)|))) (.cse4 (not (<= |old(~a25~0)| 0))) (.cse8 (not (<= |old(~a19~0)| 0))) (.cse10 (not (<= |old(~a17~0)| 8))) (.cse20 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse4 .cse8 .cse9 .cse10) (or .cse11 .cse7 .cse8 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse7 .cse12 .cse10 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse0 .cse1 .cse11 .cse5) (or .cse0 .cse7 .cse12 .cse19 .cse10 .cse20) (or .cse2 .cse3 .cse4 .cse8 .cse5 (and .cse21 .cse22 .cse15 .cse23 .cse16 .cse17)) (or .cse2 .cse3 .cse7 .cse12 .cse8 .cse19 .cse10 .cse20) (or .cse0 .cse3 .cse6 .cse4 .cse24 .cse10) (or .cse0 .cse11 .cse4 (and .cse25 .cse26 .cse13 .cse16 .cse17 .cse27) .cse10 .cse20) (or .cse0 .cse11 .cse7 .cse12 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse18) .cse10) (or .cse3 .cse6 .cse8 .cse5 (and .cse21 .cse22 .cse24 .cse23 .cse16 .cse17)) (or .cse0 .cse3 .cse6 .cse24 .cse7 .cse12 .cse10) (or .cse25 .cse11 .cse7 .cse8 .cse10 .cse20) (or .cse0 .cse2 .cse3 .cse7 .cse4 (and .cse22 .cse13 .cse14 .cse15 .cse16 .cse17 .cse27) .cse10) (or .cse25 .cse6 .cse7 .cse4 .cse8 .cse10 .cse20))))) [2020-07-21 11:29:11,767 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,767 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,767 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,767 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:29:11,767 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:29:11,768 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,769 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:29:11,770 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,771 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:29:11,772 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:29:11,773 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:29:11,774 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:29:11,774 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:29:11,774 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:29:11,774 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:29:11,774 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:29:11,774 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 11:29:11,774 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:29:11,774 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:29:11,775 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 11:29:11,775 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:29:11,775 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:29:11,775 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:29:11,776 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:29:11,776 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:29:11,776 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:29:11,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:29:11 BoogieIcfgContainer [2020-07-21 11:29:11,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:29:11,806 INFO L168 Benchmark]: Toolchain (without parser) took 25311.21 ms. Allocated memory was 145.8 MB in the beginning and 623.9 MB in the end (delta: 478.2 MB). Free memory was 100.2 MB in the beginning and 234.7 MB in the end (delta: -134.4 MB). Peak memory consumption was 445.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:11,806 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 11:29:11,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 99.8 MB in the beginning and 172.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:11,808 INFO L168 Benchmark]: Boogie Preprocessor took 102.88 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:11,809 INFO L168 Benchmark]: RCFGBuilder took 1274.09 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.2 MB in the beginning and 179.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:11,810 INFO L168 Benchmark]: TraceAbstraction took 23195.20 ms. Allocated memory was 237.0 MB in the beginning and 623.9 MB in the end (delta: 386.9 MB). Free memory was 179.0 MB in the beginning and 234.7 MB in the end (delta: -55.7 MB). Peak memory consumption was 432.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:29:11,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.51 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 99.8 MB in the beginning and 172.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.88 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1274.09 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.2 MB in the beginning and 179.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23195.20 ms. Allocated memory was 237.0 MB in the beginning and 623.9 MB in the end (delta: 386.9 MB). Free memory was 179.0 MB in the beginning and 234.7 MB in the end (delta: -55.7 MB). Peak memory consumption was 432.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 487]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a19)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || ((((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && a19 <= 0) && 9 <= a28)) || !(\old(a11) <= 0)) || ((((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && 9 <= a28) && a19 <= 0) && 1 == a25)) || !(\old(a25) <= 0)) || ((((1 == a19 && a17 <= 8) && a17 <= 7) && 7 < \old(a17)) && a28 <= 7)) || (((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 7 < \old(a17)) && 9 <= a28)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.9s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 977 SDtfs, 5524 SDslu, 662 SDs, 0 SdLazy, 8262 SolverSat, 1178 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3774 GetRequests, 3702 SyntacticMatches, 14 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6097occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 575 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 266 PreInvPairs, 342 NumberOfFragments, 1130 HoareAnnotationTreeSize, 266 FomulaSimplifications, 8585 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4842 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2136 NumberOfCodeBlocks, 2136 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3733 ConstructedInterpolants, 0 QuantifiedInterpolants, 1402655 SizeOfPredicates, 15 NumberOfNonLiveVariables, 5517 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 2597/2863 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...