/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:27:57,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:27:57,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:27:57,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:27:57,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:27:57,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:27:57,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:27:57,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:27:57,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:27:57,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:27:57,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:27:57,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:27:57,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:27:57,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:27:57,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:27:57,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:27:57,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:27:57,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:27:57,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:27:57,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:27:57,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:27:57,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:27:57,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:27:57,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:27:57,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:27:57,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:27:57,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:27:57,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:27:57,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:27:57,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:27:57,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:27:57,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:27:57,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:27:57,144 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:27:57,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:27:57,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:27:57,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:27:57,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:27:57,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:27:57,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:27:57,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:27:57,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:27:57,147 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:27:57,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:27:57,147 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:27:57,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:27:57,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:27:57,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:27:57,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:27:57,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:27:57,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:27:57,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:27:57,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:27:57,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:27:57,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:27:57,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:57,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:27:57,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:27:57,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:27:57,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:27:57,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:27:57,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:27:57,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:27:57,476 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:27:57,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-21 11:27:57,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8b67047/8f698e8fe05d4bff86baf826fef745b4/FLAG8d5d1dd99 [2020-07-21 11:27:58,167 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:27:58,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-21 11:27:58,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8b67047/8f698e8fe05d4bff86baf826fef745b4/FLAG8d5d1dd99 [2020-07-21 11:27:58,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8b67047/8f698e8fe05d4bff86baf826fef745b4 [2020-07-21 11:27:58,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:27:58,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:27:58,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:27:58,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:27:58,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:27:58,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:27:58" (1/1) ... [2020-07-21 11:27:58,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e20bf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:58, skipping insertion in model container [2020-07-21 11:27:58,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:27:58" (1/1) ... [2020-07-21 11:27:58,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:27:58,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:27:59,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:27:59,047 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:27:59,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:27:59,219 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:27:59,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59 WrapperNode [2020-07-21 11:27:59,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:27:59,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:27:59,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:27:59,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:27:59,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... [2020-07-21 11:27:59,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... [2020-07-21 11:27:59,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... [2020-07-21 11:27:59,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... [2020-07-21 11:27:59,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... [2020-07-21 11:27:59,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... [2020-07-21 11:27:59,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... [2020-07-21 11:27:59,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:27:59,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:27:59,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:27:59,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:27:59,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:27:59,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:27:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:27:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:27:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:27:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:27:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:27:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:27:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:27:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:27:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:27:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:28:00,684 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:28:00,684 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:28:00,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:00 BoogieIcfgContainer [2020-07-21 11:28:00,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:28:00,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:28:00,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:28:00,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:28:00,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:27:58" (1/3) ... [2020-07-21 11:28:00,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c83066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:00, skipping insertion in model container [2020-07-21 11:28:00,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:27:59" (2/3) ... [2020-07-21 11:28:00,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c83066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:28:00, skipping insertion in model container [2020-07-21 11:28:00,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:28:00" (3/3) ... [2020-07-21 11:28:00,703 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2020-07-21 11:28:00,716 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:28:00,725 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:28:00,743 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:28:00,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:28:00,773 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:28:00,773 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:28:00,773 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:28:00,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:28:00,774 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:28:00,774 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:28:00,774 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:28:00,801 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:28:00,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-21 11:28:00,813 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:00,815 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] [2020-07-21 11:28:00,815 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:00,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:00,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2020-07-21 11:28:00,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:00,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996715627] [2020-07-21 11:28:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:00,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:01,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:01,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:01,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:01,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996715627] [2020-07-21 11:28:01,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:01,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:01,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552793695] [2020-07-21 11:28:01,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:01,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:01,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:01,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:01,198 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:28:02,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:02,244 INFO L93 Difference]: Finished difference Result 649 states and 1093 transitions. [2020-07-21 11:28:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:02,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-21 11:28:02,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:02,269 INFO L225 Difference]: With dead ends: 649 [2020-07-21 11:28:02,270 INFO L226 Difference]: Without dead ends: 330 [2020-07-21 11:28:02,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:02,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-07-21 11:28:02,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-07-21 11:28:02,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-07-21 11:28:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 481 transitions. [2020-07-21 11:28:02,372 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 481 transitions. Word has length 95 [2020-07-21 11:28:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:02,373 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 481 transitions. [2020-07-21 11:28:02,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:02,374 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 481 transitions. [2020-07-21 11:28:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-21 11:28:02,381 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:02,382 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:02,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:02,598 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:02,599 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2020-07-21 11:28:02,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:02,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981905756] [2020-07-21 11:28:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:02,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:02,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:02,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:02,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981905756] [2020-07-21 11:28:02,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:02,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:02,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143108899] [2020-07-21 11:28:02,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:02,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:02,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:02,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:02,752 INFO L87 Difference]: Start difference. First operand 330 states and 481 transitions. Second operand 3 states. [2020-07-21 11:28:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:03,558 INFO L93 Difference]: Finished difference Result 948 states and 1400 transitions. [2020-07-21 11:28:03,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:03,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-07-21 11:28:03,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:03,577 INFO L225 Difference]: With dead ends: 948 [2020-07-21 11:28:03,578 INFO L226 Difference]: Without dead ends: 624 [2020-07-21 11:28:03,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-07-21 11:28:03,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 622. [2020-07-21 11:28:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-21 11:28:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 877 transitions. [2020-07-21 11:28:03,643 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 877 transitions. Word has length 103 [2020-07-21 11:28:03,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:03,644 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 877 transitions. [2020-07-21 11:28:03,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:03,644 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 877 transitions. [2020-07-21 11:28:03,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-21 11:28:03,650 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:03,650 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:28:03,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:03,866 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:03,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:03,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1456059206, now seen corresponding path program 1 times [2020-07-21 11:28:03,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:03,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578910949] [2020-07-21 11:28:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:03,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:28:03,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:04,046 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:04,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:04,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578910949] [2020-07-21 11:28:04,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:04,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:28:04,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162662937] [2020-07-21 11:28:04,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:04,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:04,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:04,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:04,055 INFO L87 Difference]: Start difference. First operand 622 states and 877 transitions. Second operand 5 states. [2020-07-21 11:28:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:05,185 INFO L93 Difference]: Finished difference Result 1855 states and 2711 transitions. [2020-07-21 11:28:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:28:05,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-07-21 11:28:05,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:05,199 INFO L225 Difference]: With dead ends: 1855 [2020-07-21 11:28:05,200 INFO L226 Difference]: Without dead ends: 1239 [2020-07-21 11:28:05,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:05,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-07-21 11:28:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1223. [2020-07-21 11:28:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-21 11:28:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1671 transitions. [2020-07-21 11:28:05,258 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1671 transitions. Word has length 109 [2020-07-21 11:28:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:05,258 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1671 transitions. [2020-07-21 11:28:05,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:28:05,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1671 transitions. [2020-07-21 11:28:05,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 11:28:05,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:05,263 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:28:05,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:05,471 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:05,472 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2020-07-21 11:28:05,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:05,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803467583] [2020-07-21 11:28:05,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:05,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:05,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:05,643 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:05,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:05,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803467583] [2020-07-21 11:28:05,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:05,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:05,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447436290] [2020-07-21 11:28:05,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:05,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:05,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:05,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:05,814 INFO L87 Difference]: Start difference. First operand 1223 states and 1671 transitions. Second operand 7 states. [2020-07-21 11:28:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:06,637 INFO L93 Difference]: Finished difference Result 2447 states and 3403 transitions. [2020-07-21 11:28:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:28:06,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-07-21 11:28:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:06,647 INFO L225 Difference]: With dead ends: 2447 [2020-07-21 11:28:06,648 INFO L226 Difference]: Without dead ends: 1230 [2020-07-21 11:28:06,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:28:06,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2020-07-21 11:28:06,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1212. [2020-07-21 11:28:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1212 states. [2020-07-21 11:28:06,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1605 transitions. [2020-07-21 11:28:06,703 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1605 transitions. Word has length 113 [2020-07-21 11:28:06,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:06,704 INFO L479 AbstractCegarLoop]: Abstraction has 1212 states and 1605 transitions. [2020-07-21 11:28:06,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:06,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1605 transitions. [2020-07-21 11:28:06,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 11:28:06,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:06,708 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] [2020-07-21 11:28:06,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:06,925 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:06,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1585888029, now seen corresponding path program 1 times [2020-07-21 11:28:06,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:06,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522977503] [2020-07-21 11:28:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:07,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:28:07,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:07,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:07,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522977503] [2020-07-21 11:28:07,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:07,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:28:07,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008133541] [2020-07-21 11:28:07,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:28:07,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:07,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:28:07,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:28:07,084 INFO L87 Difference]: Start difference. First operand 1212 states and 1605 transitions. Second operand 5 states. [2020-07-21 11:28:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:08,196 INFO L93 Difference]: Finished difference Result 3050 states and 4141 transitions. [2020-07-21 11:28:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:08,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-07-21 11:28:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:08,214 INFO L225 Difference]: With dead ends: 3050 [2020-07-21 11:28:08,214 INFO L226 Difference]: Without dead ends: 1844 [2020-07-21 11:28:08,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:28:08,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2020-07-21 11:28:08,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1832. [2020-07-21 11:28:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-07-21 11:28:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2309 transitions. [2020-07-21 11:28:08,296 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2309 transitions. Word has length 123 [2020-07-21 11:28:08,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:08,297 INFO L479 AbstractCegarLoop]: Abstraction has 1832 states and 2309 transitions. [2020-07-21 11:28:08,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:28:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2309 transitions. [2020-07-21 11:28:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 11:28:08,307 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:08,307 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:08,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:08,522 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:08,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:08,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1742083188, now seen corresponding path program 1 times [2020-07-21 11:28:08,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:08,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253013412] [2020-07-21 11:28:08,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:08,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:08,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:08,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:28:08,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253013412] [2020-07-21 11:28:08,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:08,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:28:08,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010773561] [2020-07-21 11:28:08,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:28:08,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:08,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:28:08,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:28:08,741 INFO L87 Difference]: Start difference. First operand 1832 states and 2309 transitions. Second operand 6 states. [2020-07-21 11:28:09,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:09,700 INFO L93 Difference]: Finished difference Result 3970 states and 5018 transitions. [2020-07-21 11:28:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:28:09,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-07-21 11:28:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:09,715 INFO L225 Difference]: With dead ends: 3970 [2020-07-21 11:28:09,716 INFO L226 Difference]: Without dead ends: 2144 [2020-07-21 11:28:09,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2020-07-21 11:28:09,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2132. [2020-07-21 11:28:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2020-07-21 11:28:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2573 transitions. [2020-07-21 11:28:09,797 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2573 transitions. Word has length 132 [2020-07-21 11:28:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:09,798 INFO L479 AbstractCegarLoop]: Abstraction has 2132 states and 2573 transitions. [2020-07-21 11:28:09,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:28:09,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2573 transitions. [2020-07-21 11:28:09,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 11:28:09,803 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:09,804 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:10,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:10,020 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:10,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:10,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2009077228, now seen corresponding path program 1 times [2020-07-21 11:28:10,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:10,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333522048] [2020-07-21 11:28:10,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:10,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:10,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:10,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:10,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333522048] [2020-07-21 11:28:10,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:10,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:10,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702704293] [2020-07-21 11:28:10,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:10,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:10,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:10,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:10,156 INFO L87 Difference]: Start difference. First operand 2132 states and 2573 transitions. Second operand 3 states. [2020-07-21 11:28:10,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:10,819 INFO L93 Difference]: Finished difference Result 4258 states and 5140 transitions. [2020-07-21 11:28:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:10,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-07-21 11:28:10,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:10,845 INFO L225 Difference]: With dead ends: 4258 [2020-07-21 11:28:10,845 INFO L226 Difference]: Without dead ends: 2132 [2020-07-21 11:28:10,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:10,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2020-07-21 11:28:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2132. [2020-07-21 11:28:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2020-07-21 11:28:10,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2450 transitions. [2020-07-21 11:28:10,956 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2450 transitions. Word has length 136 [2020-07-21 11:28:10,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:10,957 INFO L479 AbstractCegarLoop]: Abstraction has 2132 states and 2450 transitions. [2020-07-21 11:28:10,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2450 transitions. [2020-07-21 11:28:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 11:28:10,963 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:10,964 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:28:11,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:11,177 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:11,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:11,178 INFO L82 PathProgramCache]: Analyzing trace with hash 222844508, now seen corresponding path program 1 times [2020-07-21 11:28:11,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:11,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148627966] [2020-07-21 11:28:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:11,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:28:11,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:28:11,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:28:11,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148627966] [2020-07-21 11:28:11,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:28:11,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:28:11,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234536820] [2020-07-21 11:28:11,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:28:11,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:11,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:28:11,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:11,310 INFO L87 Difference]: Start difference. First operand 2132 states and 2450 transitions. Second operand 3 states. [2020-07-21 11:28:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:11,963 INFO L93 Difference]: Finished difference Result 4846 states and 5583 transitions. [2020-07-21 11:28:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:28:11,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-21 11:28:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:11,980 INFO L225 Difference]: With dead ends: 4846 [2020-07-21 11:28:11,981 INFO L226 Difference]: Without dead ends: 2123 [2020-07-21 11:28:11,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:28:11,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2020-07-21 11:28:12,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2123. [2020-07-21 11:28:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2123 states. [2020-07-21 11:28:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2398 transitions. [2020-07-21 11:28:12,086 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2398 transitions. Word has length 143 [2020-07-21 11:28:12,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:12,087 INFO L479 AbstractCegarLoop]: Abstraction has 2123 states and 2398 transitions. [2020-07-21 11:28:12,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:28:12,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2398 transitions. [2020-07-21 11:28:12,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 11:28:12,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:28:12,097 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:28:12,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:12,314 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:28:12,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:28:12,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1100298320, now seen corresponding path program 1 times [2020-07-21 11:28:12,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:28:12,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073532861] [2020-07-21 11:28:12,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:28:12,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:28:12,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:28:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 11:28:12,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:28:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 79 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 11:28:12,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073532861] [2020-07-21 11:28:12,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:28:12,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:28:12,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406900258] [2020-07-21 11:28:12,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:28:12,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:28:12,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:28:12,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:28:12,648 INFO L87 Difference]: Start difference. First operand 2123 states and 2398 transitions. Second operand 7 states. [2020-07-21 11:28:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:28:14,118 INFO L93 Difference]: Finished difference Result 5599 states and 6320 transitions. [2020-07-21 11:28:14,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:28:14,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-07-21 11:28:14,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:28:14,122 INFO L225 Difference]: With dead ends: 5599 [2020-07-21 11:28:14,122 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:28:14,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:28:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:28:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:28:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:28:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:28:14,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2020-07-21 11:28:14,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:28:14,135 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:28:14,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:28:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:28:14,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:28:14,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:28:14,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:28:15,486 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 59 [2020-07-21 11:28:15,696 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-07-21 11:28:15,901 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2020-07-21 11:28:15,907 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:28:15,907 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 11:28:15,908 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:28:15,908 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,908 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,908 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,908 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:28:15,909 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,910 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:28:15,911 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:28:15,912 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:28:15,912 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:28:15,912 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:28:15,912 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:28:15,912 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:28:15,912 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:28:15,912 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:28:15,913 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:28:15,913 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:28:15,913 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,913 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,913 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,913 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,913 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,914 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-07-21 11:28:15,914 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:28:15,914 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:28:15,914 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:28:15,914 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:28:15,915 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,916 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,916 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,916 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,916 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,916 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:28:15,916 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:28:15,917 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:28:15,918 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:28:15,918 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:28:15,918 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:28:15,918 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,918 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,918 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,918 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,919 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,919 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:28:15,919 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:28:15,919 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:28:15,919 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:28:15,919 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:28:15,919 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:28:15,920 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:28:15,920 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:28:15,920 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:28:15,920 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:28:15,920 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:28:15,920 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:28:15,920 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:28:15,921 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:28:15,921 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:28:15,921 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:28:15,921 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,921 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,921 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,922 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,922 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:28:15,922 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,922 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:28:15,922 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,922 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:28:15,923 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:28:15,923 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:28:15,923 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,923 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,923 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:28:15,923 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:28:15,924 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:28:15,924 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:28:15,924 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:28:15,924 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:28:15,924 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:28:15,924 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:28:15,924 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:28:15,925 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:28:15,925 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:28:15,925 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,925 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,925 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,925 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,925 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,926 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,926 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:28:15,926 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:28:15,926 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:28:15,926 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:28:15,926 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:28:15,926 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:28:15,927 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:28:15,927 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:28:15,927 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:28:15,927 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:28:15,927 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:28:15,927 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,927 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:28:15,928 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:28:15,929 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:28:15,930 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:28:15,930 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:28:15,930 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,930 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,930 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,931 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (= ~a25~0 |old(~a25~0)|)) (.cse1 (not (<= 9 |old(~a28~0)|))) (.cse4 (<= 9 ~a28~0)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse2 (not (<= |old(~a19~0)| 0))) (.cse10 (<= ~a11~0 0)) (.cse13 (not (= 1 |old(~a25~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse11 (not (<= |old(~a11~0)| 0))) (.cse5 (not (= 1 |old(~a19~0)|))) (.cse12 (not (<= |old(~a28~0)| 7))) (.cse9 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (<= ~a28~0 |old(~a28~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 (and .cse6 .cse7 .cse4 .cse8) .cse0 .cse1 .cse3) (or .cse0 .cse2 (and .cse9 .cse6 .cse7 .cse8) .cse3) (or .cse5 .cse0 .cse10 .cse1 .cse3 .cse11) (or .cse5 (and .cse10 .cse6 (<= ~a17~0 8) .cse7 .cse8) .cse12 .cse3 .cse11) (or .cse5 .cse9 .cse0 .cse1 .cse3) (or .cse5 (and .cse9 .cse6 .cse7 (= 1 ~a25~0)) .cse13 .cse3) (or .cse5 .cse1 .cse13 .cse3 .cse4) (or .cse0 .cse10 .cse2 .cse3 .cse11) (or .cse5 .cse10 .cse13 .cse3 .cse11) (or .cse5 .cse12 (not (<= |old(~a17~0)| 7)) (and .cse9 .cse6 .cse7)))) [2020-07-21 11:28:15,931 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,931 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,931 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,931 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:28:15,932 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,933 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:28:15,934 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:28:15,935 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:28:15,936 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:28:15,936 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:28:15,936 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,936 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,936 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,936 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,936 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:28:15,937 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:28:15,937 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:28:15,937 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:28:15,937 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:28:15,937 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:28:15,937 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:28:15,937 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:28:15,938 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:28:15,939 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:28:15,939 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:28:15,939 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:28:15,939 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:28:15,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:28:15,939 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-21 11:28:15,940 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:28:15,940 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:28:15,940 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 11:28:15,940 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse7 (<= ~a19~0 0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 8)) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse0 (= 1 ~a19~0)) (.cse6 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse7 .cse4) (and .cse1 .cse2 .cse3 .cse7) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse2 .cse5 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse3 (= 1 ~a25~0)) (and .cse0 (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) .cse6 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 11:28:15,941 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:28:15,941 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:28:15,941 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse7 (<= ~a19~0 0)) (.cse2 (<= ~a28~0 10)) (.cse5 (<= ~a17~0 7)) (.cse4 (<= 9 ~a28~0)) (.cse1 (<= ~a17~0 8)) (.cse3 (not (= 1 |old(~a25~0)|))) (.cse0 (= 1 ~a19~0)) (.cse6 (<= ~a28~0 7))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse7 .cse4) (and .cse1 .cse2 .cse3 .cse7) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse2 .cse5 .cse4) (not (<= |old(~a11~0)| 0)) (and .cse0 .cse1 .cse3 (= 1 ~a25~0)) (and .cse0 (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) .cse6 (= ~a25~0 |old(~a25~0)|)))) [2020-07-21 11:28:15,941 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:28:15,941 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:28:15,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:28:15 BoogieIcfgContainer [2020-07-21 11:28:15,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:28:15,972 INFO L168 Benchmark]: Toolchain (without parser) took 17557.75 ms. Allocated memory was 145.2 MB in the beginning and 412.6 MB in the end (delta: 267.4 MB). Free memory was 99.4 MB in the beginning and 107.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 259.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:15,973 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 11:28:15,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 800.83 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.1 MB in the beginning and 172.0 MB in the end (delta: -72.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:15,975 INFO L168 Benchmark]: Boogie Preprocessor took 137.06 ms. Allocated memory is still 205.5 MB. Free memory was 172.0 MB in the beginning and 167.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:15,976 INFO L168 Benchmark]: RCFGBuilder took 1334.25 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.2 MB in the beginning and 182.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:15,977 INFO L168 Benchmark]: TraceAbstraction took 15275.91 ms. Allocated memory was 238.0 MB in the beginning and 412.6 MB in the end (delta: 174.6 MB). Free memory was 182.6 MB in the beginning and 107.7 MB in the end (delta: 75.0 MB). Peak memory consumption was 249.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:28:15,982 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 800.83 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.1 MB in the beginning and 172.0 MB in the end (delta: -72.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.06 ms. Allocated memory is still 205.5 MB. Free memory was 172.0 MB in the beginning and 167.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1334.25 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.2 MB in the beginning and 182.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15275.91 ms. Allocated memory was 238.0 MB in the beginning and 412.6 MB in the end (delta: 174.6 MB). Free memory was 182.6 MB in the beginning and 107.7 MB in the end (delta: 75.0 MB). Peak memory consumption was 249.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a19)) || ((((1 == a19 && a17 <= 8) && a28 <= 10) && !(1 == \old(a25))) && 9 <= a28)) || ((1 == a19 && a17 <= 7) && a28 <= 7)) || !(\old(a28) <= 7)) || (((a28 <= 10 && a17 <= 7) && a19 <= 0) && 9 <= a28)) || (((a17 <= 8 && a28 <= 10) && !(1 == \old(a25))) && a19 <= 0)) || !(\old(a17) <= 8)) || (((1 == a19 && a28 <= 10) && a17 <= 7) && 9 <= a28)) || !(\old(a11) <= 0)) || (((1 == a19 && a17 <= 8) && !(1 == \old(a25))) && 1 == a25)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= 7) && a25 == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.5s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1063 SDtfs, 3075 SDslu, 465 SDs, 0 SdLazy, 5326 SolverSat, 730 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1540 GetRequests, 1503 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2132occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 60 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 110 PreInvPairs, 164 NumberOfFragments, 551 HoareAnnotationTreeSize, 110 FomulaSimplifications, 1814 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1385 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1122 NumberOfCodeBlocks, 1122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1523 ConstructedInterpolants, 0 QuantifiedInterpolants, 373681 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3205 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 462/500 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...