/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:35:26,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:35:26,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:35:26,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-18 23:35:26,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:35:26,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:35:26,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:35:26,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:35:26,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:35:26,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:35:26,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:35:26,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:35:26,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:35:26,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:35:26,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:35:26,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:35:26,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 23:35:26,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:35:26,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:35:26,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:35:26,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 23:35:27,003 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:35:27,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:35:27,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:35:27,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:35:27,005 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:35:27,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:35:27,006 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:35:27,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:35:27,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:35:27,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:35:27,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:35:27,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:35:27,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:35:27,007 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:35:27,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:35:27,007 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:35:27,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:35:27,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:35:27,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:35:27,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:35:27,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:35:27,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:35:27,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:35:27,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:35:27,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:35:27,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:35:27,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:35:27,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:35:27,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:35:27,010 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:35:27,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:35:27,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:35:27,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:35:27,364 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:35:27,364 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:35:27,365 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2020-08-18 23:35:27,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4723b37c3/0b9db38047dd47d487357862b698a5fc/FLAGa74567ae1 [2020-08-18 23:35:28,028 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:35:28,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label57.c [2020-08-18 23:35:28,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4723b37c3/0b9db38047dd47d487357862b698a5fc/FLAGa74567ae1 [2020-08-18 23:35:28,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4723b37c3/0b9db38047dd47d487357862b698a5fc [2020-08-18 23:35:28,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:35:28,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:35:28,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:35:28,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:35:28,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:35:28,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:35:28" (1/1) ... [2020-08-18 23:35:28,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9440bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:28, skipping insertion in model container [2020-08-18 23:35:28,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:35:28" (1/1) ... [2020-08-18 23:35:28,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:35:28,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:35:28,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:35:28,791 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:35:29,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:35:29,033 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:35:29,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29 WrapperNode [2020-08-18 23:35:29,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:35:29,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:35:29,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:35:29,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:35:29,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... [2020-08-18 23:35:29,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... [2020-08-18 23:35:29,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... [2020-08-18 23:35:29,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... [2020-08-18 23:35:29,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... [2020-08-18 23:35:29,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... [2020-08-18 23:35:29,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... [2020-08-18 23:35:29,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:35:29,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:35:29,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:35:29,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:35:29,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 23:35:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:35:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:35:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 23:35:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:35:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 23:35:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:35:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:35:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 23:35:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:35:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:35:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:35:30,505 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:35:30,505 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 23:35:30,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:35:30 BoogieIcfgContainer [2020-08-18 23:35:30,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:35:30,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:35:30,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:35:30,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:35:30,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:35:28" (1/3) ... [2020-08-18 23:35:30,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ed15be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:35:30, skipping insertion in model container [2020-08-18 23:35:30,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:35:29" (2/3) ... [2020-08-18 23:35:30,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ed15be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:35:30, skipping insertion in model container [2020-08-18 23:35:30,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:35:30" (3/3) ... [2020-08-18 23:35:30,521 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label57.c [2020-08-18 23:35:30,532 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:35:30,540 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:35:30,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:35:30,583 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:35:30,583 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:35:30,583 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:35:30,583 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:35:30,583 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:35:30,584 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:35:30,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:35:30,584 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:35:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-18 23:35:30,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-18 23:35:30,627 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:35:30,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:35:30,630 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:35:30,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:35:30,637 INFO L82 PathProgramCache]: Analyzing trace with hash -667012847, now seen corresponding path program 1 times [2020-08-18 23:35:30,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:35:30,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744905577] [2020-08-18 23:35:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:35:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:31,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:35:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:35:31,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744905577] [2020-08-18 23:35:31,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:35:31,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 23:35:31,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305325720] [2020-08-18 23:35:31,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 23:35:31,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:35:31,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 23:35:31,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 23:35:31,312 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-18 23:35:33,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:35:33,623 INFO L93 Difference]: Finished difference Result 813 states and 1406 transitions. [2020-08-18 23:35:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 23:35:33,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-08-18 23:35:33,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:35:33,655 INFO L225 Difference]: With dead ends: 813 [2020-08-18 23:35:33,655 INFO L226 Difference]: Without dead ends: 488 [2020-08-18 23:35:33,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:35:33,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-08-18 23:35:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 481. [2020-08-18 23:35:33,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-08-18 23:35:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 692 transitions. [2020-08-18 23:35:33,760 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 692 transitions. Word has length 97 [2020-08-18 23:35:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:35:33,761 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 692 transitions. [2020-08-18 23:35:33,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 23:35:33,762 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 692 transitions. [2020-08-18 23:35:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-08-18 23:35:33,768 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:35:33,769 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:35:33,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:35:33,769 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:35:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:35:33,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1818961066, now seen corresponding path program 1 times [2020-08-18 23:35:33,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:35:33,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222020199] [2020-08-18 23:35:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:35:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:33,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:35:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:33,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:35:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:35:33,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222020199] [2020-08-18 23:35:33,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:35:33,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 23:35:33,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072022361] [2020-08-18 23:35:33,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 23:35:33,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:35:33,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 23:35:33,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 23:35:33,996 INFO L87 Difference]: Start difference. First operand 481 states and 692 transitions. Second operand 5 states. [2020-08-18 23:35:35,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:35:35,218 INFO L93 Difference]: Finished difference Result 1402 states and 2060 transitions. [2020-08-18 23:35:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 23:35:35,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-08-18 23:35:35,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:35:35,226 INFO L225 Difference]: With dead ends: 1402 [2020-08-18 23:35:35,226 INFO L226 Difference]: Without dead ends: 927 [2020-08-18 23:35:35,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:35:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2020-08-18 23:35:35,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 920. [2020-08-18 23:35:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-08-18 23:35:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1270 transitions. [2020-08-18 23:35:35,300 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1270 transitions. Word has length 105 [2020-08-18 23:35:35,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:35:35,301 INFO L479 AbstractCegarLoop]: Abstraction has 920 states and 1270 transitions. [2020-08-18 23:35:35,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 23:35:35,301 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1270 transitions. [2020-08-18 23:35:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-08-18 23:35:35,309 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:35:35,309 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:35:35,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 23:35:35,310 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:35:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:35:35,310 INFO L82 PathProgramCache]: Analyzing trace with hash 121121017, now seen corresponding path program 1 times [2020-08-18 23:35:35,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:35:35,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376923539] [2020-08-18 23:35:35,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:35:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:35,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:35:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:35,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:35:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 23:35:35,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376923539] [2020-08-18 23:35:35,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:35:35,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 23:35:35,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073199394] [2020-08-18 23:35:35,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:35:35,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:35:35,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:35:35,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:35:35,470 INFO L87 Difference]: Start difference. First operand 920 states and 1270 transitions. Second operand 8 states. [2020-08-18 23:35:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:35:37,703 INFO L93 Difference]: Finished difference Result 3684 states and 5428 transitions. [2020-08-18 23:35:37,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 23:35:37,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-08-18 23:35:37,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:35:37,732 INFO L225 Difference]: With dead ends: 3684 [2020-08-18 23:35:37,733 INFO L226 Difference]: Without dead ends: 2770 [2020-08-18 23:35:37,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-18 23:35:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-08-18 23:35:37,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2711. [2020-08-18 23:35:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2711 states. [2020-08-18 23:35:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3729 transitions. [2020-08-18 23:35:37,873 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3729 transitions. Word has length 119 [2020-08-18 23:35:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:35:37,873 INFO L479 AbstractCegarLoop]: Abstraction has 2711 states and 3729 transitions. [2020-08-18 23:35:37,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:35:37,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3729 transitions. [2020-08-18 23:35:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-18 23:35:37,886 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:35:37,886 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:35:37,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 23:35:37,887 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:35:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:35:37,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1752648306, now seen corresponding path program 1 times [2020-08-18 23:35:37,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:35:37,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209127510] [2020-08-18 23:35:37,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:35:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:38,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:35:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:38,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:35:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:38,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 23:35:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:38,118 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 23:35:38,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209127510] [2020-08-18 23:35:38,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:35:38,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 23:35:38,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645489845] [2020-08-18 23:35:38,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 23:35:38,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:35:38,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 23:35:38,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-18 23:35:38,121 INFO L87 Difference]: Start difference. First operand 2711 states and 3729 transitions. Second operand 9 states. [2020-08-18 23:35:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:35:39,525 INFO L93 Difference]: Finished difference Result 5741 states and 8183 transitions. [2020-08-18 23:35:39,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:35:39,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 138 [2020-08-18 23:35:39,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:35:39,547 INFO L225 Difference]: With dead ends: 5741 [2020-08-18 23:35:39,547 INFO L226 Difference]: Without dead ends: 3036 [2020-08-18 23:35:39,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:35:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2020-08-18 23:35:39,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 2255. [2020-08-18 23:35:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2255 states. [2020-08-18 23:35:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3000 transitions. [2020-08-18 23:35:39,643 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3000 transitions. Word has length 138 [2020-08-18 23:35:39,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:35:39,644 INFO L479 AbstractCegarLoop]: Abstraction has 2255 states and 3000 transitions. [2020-08-18 23:35:39,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 23:35:39,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3000 transitions. [2020-08-18 23:35:39,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-08-18 23:35:39,651 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:35:39,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-18 23:35:39,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 23:35:39,652 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:35:39,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:35:39,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1536539203, now seen corresponding path program 1 times [2020-08-18 23:35:39,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:35:39,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322370933] [2020-08-18 23:35:39,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:35:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:39,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:35:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:39,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 23:35:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:39,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 23:35:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:35:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-18 23:35:39,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322370933] [2020-08-18 23:35:39,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:35:39,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 23:35:39,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116449834] [2020-08-18 23:35:39,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:35:39,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:35:39,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:35:39,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:35:39,905 INFO L87 Difference]: Start difference. First operand 2255 states and 3000 transitions. Second operand 8 states. [2020-08-18 23:35:41,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:35:41,705 INFO L93 Difference]: Finished difference Result 6442 states and 8820 transitions. [2020-08-18 23:35:41,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 23:35:41,706 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2020-08-18 23:35:41,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:35:41,706 INFO L225 Difference]: With dead ends: 6442 [2020-08-18 23:35:41,706 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 23:35:41,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-18 23:35:41,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 23:35:41,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 23:35:41,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 23:35:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 23:35:41,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-08-18 23:35:41,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:35:41,720 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 23:35:41,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:35:41,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 23:35:41,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 23:35:41,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 23:35:41,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 23:35:42,440 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 30 [2020-08-18 23:35:42,650 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:35:42,650 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-18 23:35:42,650 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:35:42,651 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,651 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,651 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,651 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,651 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,651 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-18 23:35:42,652 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-18 23:35:42,652 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-18 23:35:42,652 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-18 23:35:42,652 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-18 23:35:42,652 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-18 23:35:42,652 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-18 23:35:42,653 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-18 23:35:42,653 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-18 23:35:42,653 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-18 23:35:42,653 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-18 23:35:42,653 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-18 23:35:42,653 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-18 23:35:42,653 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,654 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,654 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,654 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,654 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-18 23:35:42,654 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,654 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-18 23:35:42,655 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-18 23:35:42,655 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-18 23:35:42,655 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-18 23:35:42,655 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-18 23:35:42,655 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-18 23:35:42,655 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-18 23:35:42,655 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-18 23:35:42,656 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,657 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,657 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,657 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,657 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,657 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2020-08-18 23:35:42,657 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-18 23:35:42,658 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-18 23:35:42,659 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-18 23:35:42,659 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-18 23:35:42,659 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,659 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,659 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,659 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,659 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-18 23:35:42,660 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-18 23:35:42,661 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-18 23:35:42,661 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-18 23:35:42,661 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-18 23:35:42,661 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-18 23:35:42,661 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-18 23:35:42,661 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,662 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,662 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,662 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,662 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,662 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-18 23:35:42,662 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-18 23:35:42,662 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-18 23:35:42,663 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-18 23:35:42,663 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-18 23:35:42,663 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-18 23:35:42,663 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-18 23:35:42,663 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-18 23:35:42,663 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-18 23:35:42,664 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-18 23:35:42,664 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-18 23:35:42,664 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-18 23:35:42,664 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-18 23:35:42,664 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-18 23:35:42,664 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-18 23:35:42,665 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-18 23:35:42,665 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,665 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,665 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,665 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,665 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-18 23:35:42,665 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,666 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-18 23:35:42,666 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,666 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-18 23:35:42,666 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-18 23:35:42,666 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-18 23:35:42,666 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,666 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,667 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-18 23:35:42,667 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-18 23:35:42,667 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-18 23:35:42,667 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-18 23:35:42,667 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-18 23:35:42,667 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-18 23:35:42,667 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-18 23:35:42,668 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-18 23:35:42,668 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-18 23:35:42,668 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-18 23:35:42,668 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-18 23:35:42,668 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,668 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,668 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,669 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,669 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,669 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,669 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-18 23:35:42,669 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-18 23:35:42,669 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-18 23:35:42,669 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-18 23:35:42,670 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-18 23:35:42,670 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-18 23:35:42,670 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-18 23:35:42,670 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-18 23:35:42,670 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-18 23:35:42,670 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-18 23:35:42,671 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-18 23:35:42,671 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,671 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,671 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,671 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,671 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,671 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,672 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-18 23:35:42,672 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-18 23:35:42,672 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-18 23:35:42,672 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-18 23:35:42,672 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-18 23:35:42,672 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-18 23:35:42,672 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-18 23:35:42,673 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-18 23:35:42,673 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-18 23:35:42,673 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-18 23:35:42,673 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-18 23:35:42,673 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-18 23:35:42,673 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-18 23:35:42,673 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-18 23:35:42,674 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,674 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,674 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,674 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a17~0)| 8))) (.cse1 (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)))) (and (or .cse0 (not (= |old(~a19~0)| 1)) .cse1) (or .cse0 .cse1 (= 11 |old(~a28~0)|)))) [2020-08-18 23:35:42,674 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,674 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,675 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,675 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-18 23:35:42,675 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-18 23:35:42,675 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-18 23:35:42,675 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-18 23:35:42,675 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-18 23:35:42,675 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-18 23:35:42,676 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-18 23:35:42,676 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-18 23:35:42,676 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-18 23:35:42,676 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-18 23:35:42,676 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-18 23:35:42,676 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-18 23:35:42,676 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-18 23:35:42,677 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,677 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,677 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,677 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,677 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,677 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,677 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-18 23:35:42,678 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-18 23:35:42,678 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-18 23:35:42,678 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-18 23:35:42,678 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-18 23:35:42,678 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-18 23:35:42,678 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-18 23:35:42,678 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-18 23:35:42,679 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,680 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,680 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,680 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,680 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-18 23:35:42,680 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-18 23:35:42,680 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-18 23:35:42,681 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-18 23:35:42,681 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-18 23:35:42,681 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-18 23:35:42,681 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-18 23:35:42,681 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-18 23:35:42,681 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-18 23:35:42,681 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-18 23:35:42,682 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-18 23:35:42,683 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-18 23:35:42,683 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-18 23:35:42,683 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 23:35:42,683 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (= ~a17~0 8) (<= ~a28~0 7) (<= ~a25~0 0)) [2020-08-18 23:35:42,683 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 23:35:42,683 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 23:35:42,684 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (= ~a19~0 |old(~a19~0)|)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a11~0)| 0))) [2020-08-18 23:35:42,684 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and .cse0 (not (= ~a28~0 11))) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (= ~a19~0 1) .cse0) (not (<= |old(~a11~0)| 0)))) [2020-08-18 23:35:42,684 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-18 23:35:42,684 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-18 23:35:42,684 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and .cse0 (not (= ~a28~0 11))) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (= ~a19~0 1) .cse0) (not (<= |old(~a11~0)| 0)))) [2020-08-18 23:35:42,685 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-18 23:35:42,685 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-18 23:35:42,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 11:35:42 BoogieIcfgContainer [2020-08-18 23:35:42,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 23:35:42,708 INFO L168 Benchmark]: Toolchain (without parser) took 14438.95 ms. Allocated memory was 139.5 MB in the beginning and 424.7 MB in the end (delta: 285.2 MB). Free memory was 100.7 MB in the beginning and 108.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 277.6 MB. Max. memory is 7.1 GB. [2020-08-18 23:35:42,709 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 23:35:42,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.34 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 171.3 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-08-18 23:35:42,711 INFO L168 Benchmark]: Boogie Preprocessor took 133.00 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-18 23:35:42,712 INFO L168 Benchmark]: RCFGBuilder took 1343.67 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 181.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-08-18 23:35:42,713 INFO L168 Benchmark]: TraceAbstraction took 12192.81 ms. Allocated memory was 237.5 MB in the beginning and 424.7 MB in the end (delta: 187.2 MB). Free memory was 181.9 MB in the beginning and 108.3 MB in the end (delta: 73.6 MB). Peak memory consumption was 260.8 MB. Max. memory is 7.1 GB. [2020-08-18 23:35:42,717 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.34 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.5 MB in the beginning and 171.3 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.00 ms. Allocated memory is still 204.5 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1343.67 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 181.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12192.81 ms. Allocated memory was 237.5 MB in the beginning and 424.7 MB in the end (delta: 187.2 MB). Free memory was 181.9 MB in the beginning and 108.3 MB in the end (delta: 73.6 MB). Peak memory consumption was 260.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 445]: 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: (((((!(\old(a28) <= 7) || !(\old(a19) == 1)) || (a17 <= 8 && !(a28 == 11))) || !(8 == \old(a17))) || !(\old(a25) <= 0)) || (a19 == 1 && a17 <= 8)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 3638 SDslu, 260 SDs, 0 SdLazy, 4423 SolverSat, 1122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2711occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 854 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 77 PreInvPairs, 133 NumberOfFragments, 228 HoareAnnotationTreeSize, 77 FomulaSimplifications, 10191 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2755 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 614 NumberOfCodeBlocks, 614 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 609 ConstructedInterpolants, 0 QuantifiedInterpolants, 194515 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 121/147 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...