/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/Problem01_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:34:07,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:34:07,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:34:07,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:34:07,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:34:07,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:34:07,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:34:07,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:34:07,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:34:07,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:34:07,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:34:07,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:34:07,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:34:07,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:34:07,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:34:07,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:34:07,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:34:07,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:34:07,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:34:07,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:34:07,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:34:07,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:34:07,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:34:07,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:34:07,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 11:34:07,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 11:34:07,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 11:34:07,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 11:34:07,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 11:34:07,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 11:34:07,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 11:34:07,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 11:34:07,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 11:34:07,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 11:34:07,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 11:34:07,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 11:34:07,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 11:34:07,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 11:34:07,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:34:07,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:34:07,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:34:07,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 11:34:07,259 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:34:07,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:34:07,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:34:07,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:34:07,261 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:34:07,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:34:07,261 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:34:07,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:34:07,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:34:07,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:34:07,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:34:07,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:34:07,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:34:07,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:34:07,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:34:07,263 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:34:07,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:34:07,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:34:07,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:34:07,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:34:07,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:34:07,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:34:07,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:34:07,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:34:07,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:34:07,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:34:07,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:07,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:34:07,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:34:07,266 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 [2020-07-20 11:34:07,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:34:07,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:34:07,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:34:07,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:34:07,570 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:34:07,571 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-07-20 11:34:07,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad6500d68/9c6bc105117347a5b6b8b01747255350/FLAG9eb76dc00 [2020-07-20 11:34:08,276 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:34:08,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2020-07-20 11:34:08,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad6500d68/9c6bc105117347a5b6b8b01747255350/FLAG9eb76dc00 [2020-07-20 11:34:08,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad6500d68/9c6bc105117347a5b6b8b01747255350 [2020-07-20 11:34:08,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:34:08,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:34:08,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:34:08,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:34:08,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:34:08,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:34:08" (1/1) ... [2020-07-20 11:34:08,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5877701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:08, skipping insertion in model container [2020-07-20 11:34:08,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:34:08" (1/1) ... [2020-07-20 11:34:08,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:34:08,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:34:09,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:34:09,012 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:34:09,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:34:09,284 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:34:09,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09 WrapperNode [2020-07-20 11:34:09,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:34:09,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:34:09,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:34:09,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:34:09,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... [2020-07-20 11:34:09,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... [2020-07-20 11:34:09,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... [2020-07-20 11:34:09,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... [2020-07-20 11:34:09,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... [2020-07-20 11:34:09,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... [2020-07-20 11:34:09,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... [2020-07-20 11:34:09,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:34:09,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:34:09,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:34:09,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:34:09,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:34:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:34:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:34:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:34:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:34:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:34:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:34:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:34:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:34:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:34:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:34:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:34:10,649 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:34:10,649 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:34:10,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:34:10 BoogieIcfgContainer [2020-07-20 11:34:10,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:34:10,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:34:10,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:34:10,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:34:10,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:34:08" (1/3) ... [2020-07-20 11:34:10,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b91accb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:34:10, skipping insertion in model container [2020-07-20 11:34:10,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:34:09" (2/3) ... [2020-07-20 11:34:10,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b91accb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:34:10, skipping insertion in model container [2020-07-20 11:34:10,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:34:10" (3/3) ... [2020-07-20 11:34:10,665 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label49.c [2020-07-20 11:34:10,676 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:34:10,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:34:10,700 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:34:10,727 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:34:10,727 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:34:10,728 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:34:10,728 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:34:10,728 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:34:10,728 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:34:10,728 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:34:10,729 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:34:10,754 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 11:34:10,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 11:34:10,768 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:10,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:10,770 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:10,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1048845111, now seen corresponding path program 1 times [2020-07-20 11:34:10,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:10,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383413294] [2020-07-20 11:34:10,788 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 [2020-07-20 11:34:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:10,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:34:10,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:11,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:34:11,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383413294] [2020-07-20 11:34:11,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:34:11,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:34:11,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314136627] [2020-07-20 11:34:11,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:34:11,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:11,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:34:11,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:11,079 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 11:34:11,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:11,927 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-20 11:34:11,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:34:11,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-07-20 11:34:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:11,946 INFO L225 Difference]: With dead ends: 547 [2020-07-20 11:34:11,946 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 11:34:11,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:11,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 11:34:12,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 11:34:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 11:34:12,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 406 transitions. [2020-07-20 11:34:12,027 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 406 transitions. Word has length 113 [2020-07-20 11:34:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:12,029 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 406 transitions. [2020-07-20 11:34:12,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:34:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 406 transitions. [2020-07-20 11:34:12,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-20 11:34:12,039 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:12,040 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:12,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:12,256 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:12,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:12,257 INFO L82 PathProgramCache]: Analyzing trace with hash -751137862, now seen corresponding path program 1 times [2020-07-20 11:34:12,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:12,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068903548] [2020-07-20 11:34:12,259 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 [2020-07-20 11:34:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:12,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:34:12,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:12,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:34:12,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068903548] [2020-07-20 11:34:12,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:34:12,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:34:12,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977417859] [2020-07-20 11:34:12,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:34:12,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:12,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:34:12,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:34:12,435 INFO L87 Difference]: Start difference. First operand 278 states and 406 transitions. Second operand 5 states. [2020-07-20 11:34:13,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:13,309 INFO L93 Difference]: Finished difference Result 842 states and 1252 transitions. [2020-07-20 11:34:13,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:34:13,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-07-20 11:34:13,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:13,322 INFO L225 Difference]: With dead ends: 842 [2020-07-20 11:34:13,323 INFO L226 Difference]: Without dead ends: 570 [2020-07-20 11:34:13,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:34:13,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-20 11:34:13,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-20 11:34:13,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-20 11:34:13,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 785 transitions. [2020-07-20 11:34:13,388 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 785 transitions. Word has length 122 [2020-07-20 11:34:13,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:13,388 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 785 transitions. [2020-07-20 11:34:13,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:34:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 785 transitions. [2020-07-20 11:34:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 11:34:13,391 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:13,392 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:13,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:13,607 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:13,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:13,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1185224365, now seen corresponding path program 1 times [2020-07-20 11:34:13,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:13,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206303901] [2020-07-20 11:34:13,610 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 [2020-07-20 11:34:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:13,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:34:13,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-20 11:34:13,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:34:13,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206303901] [2020-07-20 11:34:13,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:34:13,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:34:13,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878073894] [2020-07-20 11:34:13,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:34:13,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:13,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:34:13,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:13,784 INFO L87 Difference]: Start difference. First operand 556 states and 785 transitions. Second operand 3 states. [2020-07-20 11:34:14,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:14,417 INFO L93 Difference]: Finished difference Result 1652 states and 2381 transitions. [2020-07-20 11:34:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:34:14,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 11:34:14,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:14,427 INFO L225 Difference]: With dead ends: 1652 [2020-07-20 11:34:14,428 INFO L226 Difference]: Without dead ends: 1102 [2020-07-20 11:34:14,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:14,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-07-20 11:34:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2020-07-20 11:34:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-07-20 11:34:14,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1512 transitions. [2020-07-20 11:34:14,486 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1512 transitions. Word has length 133 [2020-07-20 11:34:14,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:14,487 INFO L479 AbstractCegarLoop]: Abstraction has 1102 states and 1512 transitions. [2020-07-20 11:34:14,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:34:14,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1512 transitions. [2020-07-20 11:34:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 11:34:14,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:14,496 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:14,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:14,698 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:14,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:14,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1964219250, now seen corresponding path program 1 times [2020-07-20 11:34:14,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:14,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062142512] [2020-07-20 11:34:14,700 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 [2020-07-20 11:34:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:14,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:34:14,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:14,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:34:14,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062142512] [2020-07-20 11:34:14,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:34:14,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:34:14,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929720885] [2020-07-20 11:34:14,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:34:14,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:14,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:34:14,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:14,852 INFO L87 Difference]: Start difference. First operand 1102 states and 1512 transitions. Second operand 3 states. [2020-07-20 11:34:15,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:15,523 INFO L93 Difference]: Finished difference Result 3284 states and 4619 transitions. [2020-07-20 11:34:15,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:34:15,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-20 11:34:15,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:15,541 INFO L225 Difference]: With dead ends: 3284 [2020-07-20 11:34:15,541 INFO L226 Difference]: Without dead ends: 2188 [2020-07-20 11:34:15,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2020-07-20 11:34:15,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1918. [2020-07-20 11:34:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1918 states. [2020-07-20 11:34:15,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2594 transitions. [2020-07-20 11:34:15,612 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2594 transitions. Word has length 132 [2020-07-20 11:34:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:15,613 INFO L479 AbstractCegarLoop]: Abstraction has 1918 states and 2594 transitions. [2020-07-20 11:34:15,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:34:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2594 transitions. [2020-07-20 11:34:15,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 11:34:15,619 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:15,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:15,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:15,833 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:15,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:15,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1661715812, now seen corresponding path program 1 times [2020-07-20 11:34:15,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:15,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050915728] [2020-07-20 11:34:15,835 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 [2020-07-20 11:34:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:15,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:34:15,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:15,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:34:15,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050915728] [2020-07-20 11:34:15,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:34:15,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:34:15,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673158402] [2020-07-20 11:34:15,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:34:15,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:15,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:34:15,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:34:15,991 INFO L87 Difference]: Start difference. First operand 1918 states and 2594 transitions. Second operand 5 states. [2020-07-20 11:34:16,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:16,849 INFO L93 Difference]: Finished difference Result 4968 states and 6868 transitions. [2020-07-20 11:34:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:34:16,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-20 11:34:16,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:16,873 INFO L225 Difference]: With dead ends: 4968 [2020-07-20 11:34:16,873 INFO L226 Difference]: Without dead ends: 3056 [2020-07-20 11:34:16,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:34:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2020-07-20 11:34:16,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 3044. [2020-07-20 11:34:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3044 states. [2020-07-20 11:34:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 4045 transitions. [2020-07-20 11:34:16,989 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 4045 transitions. Word has length 141 [2020-07-20 11:34:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:16,989 INFO L479 AbstractCegarLoop]: Abstraction has 3044 states and 4045 transitions. [2020-07-20 11:34:16,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:34:16,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 4045 transitions. [2020-07-20 11:34:16,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 11:34:16,999 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:17,000 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 11:34:17,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:17,213 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:17,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:17,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1014667477, now seen corresponding path program 1 times [2020-07-20 11:34:17,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:17,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747305509] [2020-07-20 11:34:17,214 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 [2020-07-20 11:34:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:17,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:34:17,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:17,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:34:17,546 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:17,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747305509] [2020-07-20 11:34:17,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:34:17,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 11:34:17,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469736926] [2020-07-20 11:34:17,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 11:34:17,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:17,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 11:34:17,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:34:17,551 INFO L87 Difference]: Start difference. First operand 3044 states and 4045 transitions. Second operand 8 states. [2020-07-20 11:34:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:19,634 INFO L93 Difference]: Finished difference Result 10245 states and 14716 transitions. [2020-07-20 11:34:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 11:34:19,635 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-07-20 11:34:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:19,686 INFO L225 Difference]: With dead ends: 10245 [2020-07-20 11:34:19,693 INFO L226 Difference]: Without dead ends: 7207 [2020-07-20 11:34:19,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-20 11:34:19,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7207 states. [2020-07-20 11:34:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7207 to 4976. [2020-07-20 11:34:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4976 states. [2020-07-20 11:34:19,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 6500 transitions. [2020-07-20 11:34:19,940 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 6500 transitions. Word has length 152 [2020-07-20 11:34:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:19,940 INFO L479 AbstractCegarLoop]: Abstraction has 4976 states and 6500 transitions. [2020-07-20 11:34:19,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 11:34:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 6500 transitions. [2020-07-20 11:34:19,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-20 11:34:19,959 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:19,959 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:20,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:20,173 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:20,174 INFO L82 PathProgramCache]: Analyzing trace with hash -938479511, now seen corresponding path program 1 times [2020-07-20 11:34:20,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:20,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332338139] [2020-07-20 11:34:20,176 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 [2020-07-20 11:34:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:20,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:34:20,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 103 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-20 11:34:20,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:34:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 91 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-20 11:34:20,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332338139] [2020-07-20 11:34:20,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:34:20,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 11:34:20,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189248988] [2020-07-20 11:34:20,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 11:34:20,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:20,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 11:34:20,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:34:20,473 INFO L87 Difference]: Start difference. First operand 4976 states and 6500 transitions. Second operand 6 states. [2020-07-20 11:34:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:21,648 INFO L93 Difference]: Finished difference Result 10958 states and 15077 transitions. [2020-07-20 11:34:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:34:21,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2020-07-20 11:34:21,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:21,686 INFO L225 Difference]: With dead ends: 10958 [2020-07-20 11:34:21,686 INFO L226 Difference]: Without dead ends: 5992 [2020-07-20 11:34:21,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 370 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:34:21,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2020-07-20 11:34:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 5538. [2020-07-20 11:34:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5538 states. [2020-07-20 11:34:21,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 7144 transitions. [2020-07-20 11:34:21,893 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 7144 transitions. Word has length 187 [2020-07-20 11:34:21,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:21,894 INFO L479 AbstractCegarLoop]: Abstraction has 5538 states and 7144 transitions. [2020-07-20 11:34:21,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 11:34:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 7144 transitions. [2020-07-20 11:34:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-20 11:34:21,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:21,920 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:22,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:22,134 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:22,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:22,134 INFO L82 PathProgramCache]: Analyzing trace with hash 799366193, now seen corresponding path program 1 times [2020-07-20 11:34:22,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:22,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123128893] [2020-07-20 11:34:22,135 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 [2020-07-20 11:34:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:22,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:34:22,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-07-20 11:34:22,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:34:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 90 proven. 38 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-20 11:34:22,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123128893] [2020-07-20 11:34:22,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:34:22,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:34:22,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425501408] [2020-07-20 11:34:22,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:34:22,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:22,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:34:22,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:34:22,398 INFO L87 Difference]: Start difference. First operand 5538 states and 7144 transitions. Second operand 7 states. [2020-07-20 11:34:24,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:24,146 INFO L93 Difference]: Finished difference Result 14302 states and 19105 transitions. [2020-07-20 11:34:24,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:34:24,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-20 11:34:24,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:24,214 INFO L225 Difference]: With dead ends: 14302 [2020-07-20 11:34:24,215 INFO L226 Difference]: Without dead ends: 8774 [2020-07-20 11:34:24,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:34:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8774 states. [2020-07-20 11:34:24,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8774 to 7756. [2020-07-20 11:34:24,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7756 states. [2020-07-20 11:34:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 9756 transitions. [2020-07-20 11:34:24,593 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 9756 transitions. Word has length 198 [2020-07-20 11:34:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:24,593 INFO L479 AbstractCegarLoop]: Abstraction has 7756 states and 9756 transitions. [2020-07-20 11:34:24,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:34:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 9756 transitions. [2020-07-20 11:34:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-20 11:34:24,613 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:24,615 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:34:24,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:24,829 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:24,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:24,829 INFO L82 PathProgramCache]: Analyzing trace with hash -679409593, now seen corresponding path program 1 times [2020-07-20 11:34:24,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:24,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165898262] [2020-07-20 11:34:24,830 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 [2020-07-20 11:34:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:24,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:34:24,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:25,018 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-20 11:34:25,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:34:25,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165898262] [2020-07-20 11:34:25,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:34:25,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:34:25,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180811359] [2020-07-20 11:34:25,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:34:25,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:25,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:34:25,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:25,021 INFO L87 Difference]: Start difference. First operand 7756 states and 9756 transitions. Second operand 3 states. [2020-07-20 11:34:25,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:25,597 INFO L93 Difference]: Finished difference Result 13459 states and 16929 transitions. [2020-07-20 11:34:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:34:25,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-07-20 11:34:25,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:25,599 INFO L225 Difference]: With dead ends: 13459 [2020-07-20 11:34:25,599 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:34:25,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:25,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:34:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:34:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:34:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:34:25,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 200 [2020-07-20 11:34:25,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:25,623 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:34:25,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:34:25,624 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:34:25,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:34:25,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:25,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:34:27,318 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 416 DAG size of output: 138 [2020-07-20 11:34:28,050 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 138 [2020-07-20 11:34:29,557 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 198 DAG size of output: 75 [2020-07-20 11:34:30,194 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 33 [2020-07-20 11:34:30,766 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 33 [2020-07-20 11:34:30,770 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:34:30,771 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= |old(~a16~0)| ~a16~0) (<= ~a7~0 |old(~a7~0)|)) [2020-07-20 11:34:30,771 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:34:30,771 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 11:34:30,771 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 11:34:30,771 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,771 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,772 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,772 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,772 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,772 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,772 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 11:34:30,772 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 11:34:30,772 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 11:34:30,773 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 11:34:30,774 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 497) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,775 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 11:34:30,776 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 11:34:30,777 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 11:34:30,778 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 11:34:30,779 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 11:34:30,780 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 11:34:30,780 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 11:34:30,780 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 11:34:30,780 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 11:34:30,780 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 11:34:30,780 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 11:34:30,780 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,781 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 11:34:30,782 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,783 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 11:34:30,784 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 11:34:30,785 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 11:34:30,786 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 11:34:30,786 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 11:34:30,786 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 11:34:30,786 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 11:34:30,786 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 11:34:30,787 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (not (<= 5 |old(~a16~0)|))) (.cse8 (<= ~a17~0 0)) (.cse11 (<= ~a20~0 0)) (.cse3 (not (<= |old(~a17~0)| 0))) (.cse0 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= |old(~a8~0)| 13))) (.cse10 (not (<= |old(~a20~0)| 0))) (.cse9 (not (<= 15 |old(~a8~0)|))) (.cse5 (<= ~a8~0 |old(~a8~0)|)) (.cse4 (<= ~a16~0 |old(~a16~0)|)) (.cse6 (<= |old(~a16~0)| ~a16~0)) (.cse7 (<= ~a7~0 |old(~a7~0)|))) (and (or (and (or .cse0 .cse1 (not (<= |old(~a16~0)| 4))) (or .cse2 .cse3)) (and .cse4 .cse5 .cse6 .cse7 (<= ~a16~0 4)) (and .cse4 .cse5 .cse6 .cse8 .cse7)) (or .cse9 .cse10 .cse11) (or (and .cse5 (<= ~a16~0 5) (<= 5 ~a16~0) .cse7) .cse0 .cse1 .cse2) (or (let ((.cse12 (not (<= |old(~a7~0)| 0)))) (and (or .cse12 .cse0) (or .cse12 .cse1))) (and .cse4 .cse5 .cse6 .cse7)) (or .cse9 .cse8 .cse3) (or (and .cse4 (or (and .cse6 .cse8 (< ~a8~0 15) .cse11 .cse7) (and (<= ~a8~0 13) .cse6 .cse11 .cse7))) (and (or .cse0 .cse10 (not (< |old(~a8~0)| 15)) .cse3) (or .cse0 .cse1 .cse10))) (or .cse9 (and .cse5 .cse4 .cse6 (<= 15 ~a8~0) .cse7)))) [2020-07-20 11:34:30,787 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 11:34:30,787 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,787 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,787 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,787 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,787 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 11:34:30,788 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,789 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,790 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,790 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,790 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 11:34:30,790 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,790 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 11:34:30,790 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 11:34:30,790 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 11:34:30,791 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:30,792 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 11:34:30,793 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 11:34:30,794 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:34:30,794 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-20 11:34:30,794 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:34:30,794 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:34:30,794 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (<= ~a7~0 |old(~a7~0)|)) (not (<= 5 |old(~a16~0)|))) [2020-07-20 11:34:30,794 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 11:34:30,794 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse1 (<= ~a7~0 0)) (.cse0 (<= ~a17~0 0))) (or (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse2) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse1) (and .cse0 (<= 5 ~a16~0)))) [2020-07-20 11:34:30,795 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 11:34:30,795 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 11:34:30,795 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse1 (<= ~a7~0 0)) (.cse0 (<= ~a17~0 0))) (or (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse1 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse2) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse1) (and .cse0 (<= 5 ~a16~0)))) [2020-07-20 11:34:30,795 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 11:34:30,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:34:30 BoogieIcfgContainer [2020-07-20 11:34:30,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:34:30,819 INFO L168 Benchmark]: Toolchain (without parser) took 22297.41 ms. Allocated memory was 146.3 MB in the beginning and 556.3 MB in the end (delta: 410.0 MB). Free memory was 100.7 MB in the beginning and 326.3 MB in the end (delta: -225.5 MB). Peak memory consumption was 438.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:30,820 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 11:34:30,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.01 ms. Allocated memory was 146.3 MB in the beginning and 206.0 MB in the end (delta: 59.8 MB). Free memory was 100.3 MB in the beginning and 172.3 MB in the end (delta: -72.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:30,821 INFO L168 Benchmark]: Boogie Preprocessor took 123.98 ms. Allocated memory is still 206.0 MB. Free memory was 172.3 MB in the beginning and 167.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:30,822 INFO L168 Benchmark]: RCFGBuilder took 1245.74 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 180.6 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:30,823 INFO L168 Benchmark]: TraceAbstraction took 20159.90 ms. Allocated memory was 239.1 MB in the beginning and 556.3 MB in the end (delta: 317.2 MB). Free memory was 180.6 MB in the beginning and 326.3 MB in the end (delta: -145.7 MB). Peak memory consumption was 425.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:30,827 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.01 ms. Allocated memory was 146.3 MB in the beginning and 206.0 MB in the end (delta: 59.8 MB). Free memory was 100.3 MB in the beginning and 172.3 MB in the end (delta: -72.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.98 ms. Allocated memory is still 206.0 MB. Free memory was 172.3 MB in the beginning and 167.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1245.74 ms. Allocated memory was 206.0 MB in the beginning and 239.1 MB in the end (delta: 33.0 MB). Free memory was 167.5 MB in the beginning and 180.6 MB in the end (delta: -13.1 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20159.90 ms. Allocated memory was 239.1 MB in the beginning and 556.3 MB in the end (delta: 317.2 MB). Free memory was 180.6 MB in the beginning and 326.3 MB in the end (delta: -145.7 MB). Peak memory consumption was 425.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 497]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((!(15 <= \old(a8)) || (a17 <= 0 && a20 <= 0)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || (a8 <= 13 && a16 <= 5)) || !(5 <= \old(a16))) || (a8 <= 13 && a7 <= 0)) || (a17 <= 0 && 5 <= a16) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.1s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 663 SDtfs, 2760 SDslu, 334 SDs, 0 SdLazy, 6841 SolverSat, 1045 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1930 GetRequests, 1887 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7756occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 3999 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 231 PreInvPairs, 345 NumberOfFragments, 397 HoareAnnotationTreeSize, 231 FomulaSimplifications, 57566 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9400 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1378 NumberOfCodeBlocks, 1378 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1903 ConstructedInterpolants, 0 QuantifiedInterpolants, 548595 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4023 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 856/928 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...