/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:24:51,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:24:51,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:24:51,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:24:51,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:24:51,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:24:51,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:24:51,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:24:52,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:24:52,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:24:52,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:24:52,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:24:52,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:24:52,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:24:52,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:24:52,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:24:52,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:24:52,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:24:52,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:24:52,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:24:52,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:24:52,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:24:52,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:24:52,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:24:52,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-21 10:24:52,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:24:52,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:24:52,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:24:52,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:24:52,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:24:52,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:24:52,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:24:52,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:24:52,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:24:52,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:24:52,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:24:52,040 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 [2020-09-21 10:24:52,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:24:52,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:24:52,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:24:52,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:24:52,073 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:24:52,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:24:52,073 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:24:52,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:24:52,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:24:52,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:24:52,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:24:52,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:24:52,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:24:52,075 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:24:52,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:24:52,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:24:52,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:24:52,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:24:52,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:24:52,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:24:52,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:24:52,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:24:52,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:24:52,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:24:52,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:24:52,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:24:52,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:24:52,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:24:52,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:24:52,078 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 -> false [2020-09-21 10:24:52,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:24:52,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:24:52,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:24:52,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:24:52,573 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:24:52,574 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-09-21 10:24:52,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5975531d8/c6f79fef06e042e58b3d9f7439de3d64/FLAGfd94ebd3c [2020-09-21 10:24:53,347 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:24:53,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label30.c [2020-09-21 10:24:53,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5975531d8/c6f79fef06e042e58b3d9f7439de3d64/FLAGfd94ebd3c [2020-09-21 10:24:53,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5975531d8/c6f79fef06e042e58b3d9f7439de3d64 [2020-09-21 10:24:53,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:24:53,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:24:53,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:24:53,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:24:53,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:24:53,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:24:53" (1/1) ... [2020-09-21 10:24:53,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbac012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:53, skipping insertion in model container [2020-09-21 10:24:53,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:24:53" (1/1) ... [2020-09-21 10:24:53,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:24:53,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:24:54,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:24:54,126 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:24:54,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:24:54,414 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:24:54,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54 WrapperNode [2020-09-21 10:24:54,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:24:54,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:24:54,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:24:54,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:24:54,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (1/1) ... [2020-09-21 10:24:54,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (1/1) ... [2020-09-21 10:24:54,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (1/1) ... [2020-09-21 10:24:54,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (1/1) ... [2020-09-21 10:24:54,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (1/1) ... [2020-09-21 10:24:54,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (1/1) ... [2020-09-21 10:24:54,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (1/1) ... [2020-09-21 10:24:54,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:24:54,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:24:54,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:24:54,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:24:54,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (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 [2020-09-21 10:24:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:24:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:24:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 10:24:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:24:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 10:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 10:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:24:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:24:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:24:55,946 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:24:55,946 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 10:24:55,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:24:55 BoogieIcfgContainer [2020-09-21 10:24:55,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:24:55,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:24:55,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:24:55,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:24:55,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:24:53" (1/3) ... [2020-09-21 10:24:55,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fea01ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:24:55, skipping insertion in model container [2020-09-21 10:24:55,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:24:54" (2/3) ... [2020-09-21 10:24:55,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fea01ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:24:55, skipping insertion in model container [2020-09-21 10:24:55,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:24:55" (3/3) ... [2020-09-21 10:24:55,973 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-09-21 10:24:55,985 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:24:55,997 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:24:56,020 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:24:56,057 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:24:56,057 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:24:56,058 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:24:56,058 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:24:56,058 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:24:56,058 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:24:56,058 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:24:56,059 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:24:56,084 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 10:24:56,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 10:24:56,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:24:56,094 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] [2020-09-21 10:24:56,094 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:24:56,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:24:56,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134543, now seen corresponding path program 1 times [2020-09-21 10:24:56,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:24:56,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039898873] [2020-09-21 10:24:56,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:24:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:24:56,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:24:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:24:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:24:56,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039898873] [2020-09-21 10:24:56,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:24:56,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 10:24:56,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87943365] [2020-09-21 10:24:56,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 10:24:56,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:24:56,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 10:24:56,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:24:56,563 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-09-21 10:24:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:24:59,208 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-09-21 10:24:59,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 10:24:59,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-09-21 10:24:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:24:59,262 INFO L225 Difference]: With dead ends: 730 [2020-09-21 10:24:59,262 INFO L226 Difference]: Without dead ends: 447 [2020-09-21 10:24:59,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:24:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-21 10:24:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-09-21 10:24:59,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-09-21 10:24:59,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-09-21 10:24:59,438 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 40 [2020-09-21 10:24:59,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:24:59,439 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-09-21 10:24:59,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 10:24:59,440 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-09-21 10:24:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-21 10:24:59,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:24:59,457 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:24:59,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:24:59,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:24:59,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:24:59,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1223819674, now seen corresponding path program 1 times [2020-09-21 10:24:59,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:24:59,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108974448] [2020-09-21 10:24:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:24:59,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:24:59,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:24:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:24:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:24:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:24:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:24:59,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108974448] [2020-09-21 10:24:59,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:24:59,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 10:24:59,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285494203] [2020-09-21 10:24:59,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:24:59,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:24:59,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:24:59,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:24:59,911 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-09-21 10:25:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:02,442 INFO L93 Difference]: Finished difference Result 1490 states and 2350 transitions. [2020-09-21 10:25:02,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 10:25:02,442 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 122 [2020-09-21 10:25:02,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:02,454 INFO L225 Difference]: With dead ends: 1490 [2020-09-21 10:25:02,454 INFO L226 Difference]: Without dead ends: 1055 [2020-09-21 10:25:02,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-21 10:25:02,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2020-09-21 10:25:02,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 745. [2020-09-21 10:25:02,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2020-09-21 10:25:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1066 transitions. [2020-09-21 10:25:02,543 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1066 transitions. Word has length 122 [2020-09-21 10:25:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:02,544 INFO L479 AbstractCegarLoop]: Abstraction has 745 states and 1066 transitions. [2020-09-21 10:25:02,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:25:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1066 transitions. [2020-09-21 10:25:02,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-21 10:25:02,549 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:25:02,549 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:25:02,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:25:02,550 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:25:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:25:02,550 INFO L82 PathProgramCache]: Analyzing trace with hash 52272842, now seen corresponding path program 1 times [2020-09-21 10:25:02,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:25:02,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755075945] [2020-09-21 10:25:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:25:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:02,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:25:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:02,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:25:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:25:02,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755075945] [2020-09-21 10:25:02,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:25:02,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 10:25:02,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464640572] [2020-09-21 10:25:02,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:25:02,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:25:02,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:25:02,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:25:02,902 INFO L87 Difference]: Start difference. First operand 745 states and 1066 transitions. Second operand 8 states. [2020-09-21 10:25:04,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:04,754 INFO L93 Difference]: Finished difference Result 1822 states and 2689 transitions. [2020-09-21 10:25:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:25:04,758 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-09-21 10:25:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:04,765 INFO L225 Difference]: With dead ends: 1822 [2020-09-21 10:25:04,766 INFO L226 Difference]: Without dead ends: 1083 [2020-09-21 10:25:04,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:25:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-09-21 10:25:04,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1055. [2020-09-21 10:25:04,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2020-09-21 10:25:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1377 transitions. [2020-09-21 10:25:04,807 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1377 transitions. Word has length 162 [2020-09-21 10:25:04,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:04,808 INFO L479 AbstractCegarLoop]: Abstraction has 1055 states and 1377 transitions. [2020-09-21 10:25:04,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:25:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1377 transitions. [2020-09-21 10:25:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-21 10:25:04,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:25:04,813 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:25:04,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:25:04,814 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:25:04,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:25:04,814 INFO L82 PathProgramCache]: Analyzing trace with hash -910777059, now seen corresponding path program 1 times [2020-09-21 10:25:04,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:25:04,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415585318] [2020-09-21 10:25:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:25:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:04,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:25:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:04,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:25:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 10:25:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 10:25:05,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415585318] [2020-09-21 10:25:05,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:25:05,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:25:05,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167386946] [2020-09-21 10:25:05,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:25:05,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:25:05,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:25:05,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:25:05,101 INFO L87 Difference]: Start difference. First operand 1055 states and 1377 transitions. Second operand 7 states. [2020-09-21 10:25:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:07,032 INFO L93 Difference]: Finished difference Result 2563 states and 3412 transitions. [2020-09-21 10:25:07,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:25:07,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-09-21 10:25:07,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:07,043 INFO L225 Difference]: With dead ends: 2563 [2020-09-21 10:25:07,043 INFO L226 Difference]: Without dead ends: 1514 [2020-09-21 10:25:07,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-21 10:25:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2020-09-21 10:25:07,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1353. [2020-09-21 10:25:07,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2020-09-21 10:25:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1721 transitions. [2020-09-21 10:25:07,090 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1721 transitions. Word has length 208 [2020-09-21 10:25:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:07,090 INFO L479 AbstractCegarLoop]: Abstraction has 1353 states and 1721 transitions. [2020-09-21 10:25:07,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:25:07,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1721 transitions. [2020-09-21 10:25:07,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-21 10:25:07,095 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:25:07,095 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:25:07,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:25:07,096 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:25:07,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:25:07,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2063499112, now seen corresponding path program 1 times [2020-09-21 10:25:07,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:25:07,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154806128] [2020-09-21 10:25:07,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:25:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:07,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:25:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:07,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:25:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:07,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 10:25:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:07,515 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 66 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 10:25:07,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154806128] [2020-09-21 10:25:07,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:25:07,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:25:07,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359320561] [2020-09-21 10:25:07,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:25:07,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:25:07,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:25:07,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:25:07,519 INFO L87 Difference]: Start difference. First operand 1353 states and 1721 transitions. Second operand 7 states. [2020-09-21 10:25:09,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:09,005 INFO L93 Difference]: Finished difference Result 2879 states and 3664 transitions. [2020-09-21 10:25:09,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:25:09,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-09-21 10:25:09,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:09,017 INFO L225 Difference]: With dead ends: 2879 [2020-09-21 10:25:09,017 INFO L226 Difference]: Without dead ends: 1532 [2020-09-21 10:25:09,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:25:09,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-09-21 10:25:09,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1355. [2020-09-21 10:25:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1355 states. [2020-09-21 10:25:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1673 transitions. [2020-09-21 10:25:09,060 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1673 transitions. Word has length 209 [2020-09-21 10:25:09,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:09,061 INFO L479 AbstractCegarLoop]: Abstraction has 1355 states and 1673 transitions. [2020-09-21 10:25:09,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:25:09,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1673 transitions. [2020-09-21 10:25:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-21 10:25:09,065 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:25:09,066 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:25:09,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:25:09,066 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:25:09,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:25:09,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1361912872, now seen corresponding path program 1 times [2020-09-21 10:25:09,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:25:09,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588510976] [2020-09-21 10:25:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:25:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:09,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:25:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:09,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:25:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:09,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 10:25:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 70 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 10:25:09,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588510976] [2020-09-21 10:25:09,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:25:09,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 10:25:09,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597812272] [2020-09-21 10:25:09,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:25:09,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:25:09,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:25:09,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:25:09,441 INFO L87 Difference]: Start difference. First operand 1355 states and 1673 transitions. Second operand 10 states. [2020-09-21 10:25:12,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:12,340 INFO L93 Difference]: Finished difference Result 3649 states and 4704 transitions. [2020-09-21 10:25:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 10:25:12,341 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2020-09-21 10:25:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:12,353 INFO L225 Difference]: With dead ends: 3649 [2020-09-21 10:25:12,354 INFO L226 Difference]: Without dead ends: 2416 [2020-09-21 10:25:12,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2020-09-21 10:25:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2020-09-21 10:25:12,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2396. [2020-09-21 10:25:12,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2020-09-21 10:25:12,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 3069 transitions. [2020-09-21 10:25:12,431 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 3069 transitions. Word has length 217 [2020-09-21 10:25:12,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:12,431 INFO L479 AbstractCegarLoop]: Abstraction has 2396 states and 3069 transitions. [2020-09-21 10:25:12,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:25:12,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 3069 transitions. [2020-09-21 10:25:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-09-21 10:25:12,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:25:12,438 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 10:25:12,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:25:12,439 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:25:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:25:12,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1165154096, now seen corresponding path program 1 times [2020-09-21 10:25:12,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:25:12,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580312856] [2020-09-21 10:25:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:25:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:12,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:25:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:12,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:25:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:12,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 10:25:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 10:25:12,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580312856] [2020-09-21 10:25:12,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:25:12,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:25:12,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744184590] [2020-09-21 10:25:12,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:25:12,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:25:12,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:25:12,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:25:12,792 INFO L87 Difference]: Start difference. First operand 2396 states and 3069 transitions. Second operand 7 states. [2020-09-21 10:25:16,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:16,849 INFO L93 Difference]: Finished difference Result 4943 states and 6428 transitions. [2020-09-21 10:25:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:25:16,851 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-09-21 10:25:16,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:16,864 INFO L225 Difference]: With dead ends: 4943 [2020-09-21 10:25:16,864 INFO L226 Difference]: Without dead ends: 2696 [2020-09-21 10:25:16,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-09-21 10:25:16,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2020-09-21 10:25:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2396. [2020-09-21 10:25:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2020-09-21 10:25:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 2908 transitions. [2020-09-21 10:25:16,989 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 2908 transitions. Word has length 253 [2020-09-21 10:25:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:16,990 INFO L479 AbstractCegarLoop]: Abstraction has 2396 states and 2908 transitions. [2020-09-21 10:25:16,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:25:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 2908 transitions. [2020-09-21 10:25:17,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-09-21 10:25:17,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:25:17,001 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:25:17,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 10:25:17,001 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:25:17,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:25:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1060741542, now seen corresponding path program 1 times [2020-09-21 10:25:17,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:25:17,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221413875] [2020-09-21 10:25:17,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:25:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:17,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:25:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:17,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:25:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:17,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 10:25:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:17,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-21 10:25:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 174 proven. 170 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 10:25:17,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221413875] [2020-09-21 10:25:17,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:25:17,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 10:25:17,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383020575] [2020-09-21 10:25:17,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 10:25:17,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:25:17,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 10:25:17,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-21 10:25:17,664 INFO L87 Difference]: Start difference. First operand 2396 states and 2908 transitions. Second operand 11 states. [2020-09-21 10:25:21,483 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-09-21 10:25:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:22,793 INFO L93 Difference]: Finished difference Result 5259 states and 6492 transitions. [2020-09-21 10:25:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 10:25:22,794 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 330 [2020-09-21 10:25:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:22,805 INFO L225 Difference]: With dead ends: 5259 [2020-09-21 10:25:22,806 INFO L226 Difference]: Without dead ends: 3012 [2020-09-21 10:25:22,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2020-09-21 10:25:22,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2020-09-21 10:25:22,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2990. [2020-09-21 10:25:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2990 states. [2020-09-21 10:25:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 3529 transitions. [2020-09-21 10:25:22,895 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 3529 transitions. Word has length 330 [2020-09-21 10:25:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:22,895 INFO L479 AbstractCegarLoop]: Abstraction has 2990 states and 3529 transitions. [2020-09-21 10:25:22,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 10:25:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 3529 transitions. [2020-09-21 10:25:22,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-09-21 10:25:22,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:25:22,906 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:25:22,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 10:25:22,906 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:25:22,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:25:22,907 INFO L82 PathProgramCache]: Analyzing trace with hash -924465415, now seen corresponding path program 1 times [2020-09-21 10:25:22,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:25:22,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115624692] [2020-09-21 10:25:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:25:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:23,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:25:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:23,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:25:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:23,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 10:25:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:23,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-21 10:25:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:25:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-09-21 10:25:23,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115624692] [2020-09-21 10:25:23,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:25:23,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 10:25:23,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403734421] [2020-09-21 10:25:23,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 10:25:23,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:25:23,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 10:25:23,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:25:23,378 INFO L87 Difference]: Start difference. First operand 2990 states and 3529 transitions. Second operand 5 states. [2020-09-21 10:25:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:25:24,960 INFO L93 Difference]: Finished difference Result 6995 states and 8440 transitions. [2020-09-21 10:25:24,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:25:24,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 349 [2020-09-21 10:25:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:25:24,962 INFO L225 Difference]: With dead ends: 6995 [2020-09-21 10:25:24,962 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:25:24,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:25:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:25:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:25:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:25:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:25:24,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 349 [2020-09-21 10:25:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:25:24,976 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:25:24,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 10:25:24,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:25:24,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:25:24,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 10:25:24,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:25:26,141 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-09-21 10:25:26,421 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-09-21 10:25:27,331 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 45 [2020-09-21 10:25:28,110 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 58 [2020-09-21 10:25:28,962 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 58 [2020-09-21 10:25:28,966 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 10:25:28,968 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-21 10:25:28,969 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 10:25:28,969 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 10:25:28,969 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,969 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,970 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,970 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,970 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,970 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,970 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 10:25:28,970 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 10:25:28,971 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 10:25:28,971 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 10:25:28,971 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 10:25:28,971 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 10:25:28,971 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 10:25:28,971 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 10:25:28,971 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 10:25:28,972 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 10:25:28,972 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 10:25:28,972 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,972 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 10:25:28,973 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 10:25:28,974 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 10:25:28,974 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 10:25:28,974 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 10:25:28,974 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 10:25:28,974 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 10:25:28,974 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 10:25:28,974 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 10:25:28,975 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 10:25:28,975 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2020-09-21 10:25:28,975 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 10:25:28,975 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,975 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,975 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,975 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,976 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,976 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 10:25:28,976 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 10:25:28,976 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 10:25:28,977 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 10:25:28,977 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 10:25:28,977 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 10:25:28,977 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 10:25:28,977 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 10:25:28,977 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 10:25:28,978 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 10:25:28,978 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,978 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,978 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,980 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,980 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,980 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 10:25:28,980 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 10:25:28,980 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 10:25:28,980 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 10:25:28,980 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 10:25:28,981 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 10:25:28,982 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 10:25:28,983 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 10:25:28,983 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 10:25:28,983 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 10:25:28,983 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 10:25:28,983 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 10:25:28,983 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 10:25:28,983 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,984 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,984 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,984 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,985 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,985 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,985 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,985 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 10:25:28,985 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 10:25:28,985 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 10:25:28,985 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 10:25:28,986 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 10:25:28,986 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 10:25:28,986 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 10:25:28,986 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 10:25:28,986 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 10:25:28,986 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 10:25:28,986 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 10:25:28,987 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 10:25:28,988 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 10:25:28,988 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,988 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,988 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,988 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,988 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 10:25:28,989 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 10:25:28,990 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 10:25:28,990 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 10:25:28,990 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,991 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,992 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,992 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,992 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 10:25:28,992 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 10:25:28,992 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 10:25:28,993 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 10:25:28,993 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 10:25:28,993 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 10:25:28,993 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 10:25:28,993 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 10:25:28,993 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 10:25:28,993 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 10:25:28,994 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 10:25:28,995 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (= 7 |old(~a19~0)|)) (.cse2 (not (<= |old(~a19~0)| 9))) (.cse3 (not (<= |old(~a1~0)| 206))) (.cse4 (not (= |old(~a10~0)| 1))) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= |old(~a10~0)| 0)) .cse3 .cse1) (or (not (<= 9 |old(~a19~0)|)) .cse4 .cse1) (or .cse3 .cse1 .cse2 (not (= 2 |old(~a10~0)|))) (or .cse4 .cse1 (not (= 14 ~a4~0)) (not (= ~a12~0 0))) (or .cse3 .cse4 .cse1))) [2020-09-21 10:25:28,995 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 10:25:28,995 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 10:25:28,995 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 10:25:28,995 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,996 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,996 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,996 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,996 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,996 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,996 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 10:25:28,996 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 10:25:28,997 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,998 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 10:25:28,999 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:29,000 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 10:25:29,001 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 10:25:29,002 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 10:25:29,003 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 10:25:29,003 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 10:25:29,003 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 10:25:29,004 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-09-21 10:25:29,004 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 10:25:29,004 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 9)) (.cse3 (= ~a10~0 1)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse4 (not (= 7 ~a19~0))) (.cse2 (<= ~a1~0 206))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and (= ~a19~0 8) .cse3 (<= 331505 ~a1~0)) (and .cse0 .cse1 .cse4) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (and .cse0 .cse3) (and .cse0 (<= ~a10~0 0) .cse4 .cse2) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-09-21 10:25:29,004 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 10:25:29,005 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 10:25:29,005 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 9)) (.cse3 (= ~a10~0 1)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse4 (not (= 7 ~a19~0))) (.cse2 (<= ~a1~0 206))) (or (and .cse0 (= ~a10~0 2) .cse1 .cse2) (and (= ~a19~0 8) .cse3 (<= 331505 ~a1~0)) (and .cse0 .cse1 .cse4) (not (= ~a12~0 0)) (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 23 ~a1~0) (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (and .cse0 .cse3) (and .cse0 (<= ~a10~0 0) .cse4 .cse2) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)))) [2020-09-21 10:25:29,005 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 10:25:29,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 10:25:29 BoogieIcfgContainer [2020-09-21 10:25:29,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 10:25:29,052 INFO L168 Benchmark]: Toolchain (without parser) took 35489.50 ms. Allocated memory was 139.5 MB in the beginning and 532.2 MB in the end (delta: 392.7 MB). Free memory was 101.5 MB in the beginning and 217.3 MB in the end (delta: -115.8 MB). Peak memory consumption was 418.2 MB. Max. memory is 7.1 GB. [2020-09-21 10:25:29,052 INFO L168 Benchmark]: CDTParser took 0.22 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. [2020-09-21 10:25:29,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.00 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 172.1 MB in the end (delta: -71.3 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-09-21 10:25:29,054 INFO L168 Benchmark]: Boogie Preprocessor took 143.08 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-21 10:25:29,055 INFO L168 Benchmark]: RCFGBuilder took 1398.87 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 181.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-09-21 10:25:29,064 INFO L168 Benchmark]: TraceAbstraction took 33083.53 ms. Allocated memory was 238.0 MB in the beginning and 532.2 MB in the end (delta: 294.1 MB). Free memory was 181.8 MB in the beginning and 217.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 399.9 MB. Max. memory is 7.1 GB. [2020-09-21 10:25:29,067 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 848.00 ms. Allocated memory was 139.5 MB in the beginning and 205.5 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 172.1 MB in the end (delta: -71.3 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.08 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 167.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1398.87 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 181.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33083.53 ms. Allocated memory was 238.0 MB in the beginning and 532.2 MB in the end (delta: 294.1 MB). Free memory was 181.8 MB in the beginning and 217.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 399.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 582]: Loop Invariant Derived loop invariant: (((((((((((((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 == 2) && a19 <= 9) && a1 <= 206) || ((a19 == 8 && a10 == 1) && 331505 <= a1)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a19 <= 9) && !(7 == a19))) || !(a12 == 0)) || !(23 <= \old(a1))) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (((23 <= a1 && a1 <= 23) && a19 == \old(a19)) && a10 == \old(a10))) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 == 1)) || ((((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 <= 0) && !(7 == a19)) && a1 <= 206)) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.9s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 24.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 288 SDtfs, 4960 SDslu, 517 SDs, 0 SdLazy, 11054 SolverSat, 1489 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2990occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1024 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 118 PreInvPairs, 178 NumberOfFragments, 466 HoareAnnotationTreeSize, 118 FomulaSimplifications, 37911 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12104 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1890 NumberOfCodeBlocks, 1890 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1881 ConstructedInterpolants, 0 QuantifiedInterpolants, 1139860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 1033/1361 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...