/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 22:12:35,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 22:12:35,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 22:12:35,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 22:12:35,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:12:35,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:12:35,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:12:35,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:12:35,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:12:35,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:12:35,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:12:35,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:12:35,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:12:35,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:12:35,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:12:35,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:12:35,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:12:35,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:12:35,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:12:35,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:12:35,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:12:35,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:12:35,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:12:35,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:12:35,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 22:12:35,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:12:35,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:12:35,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:12:35,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 22:12:35,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:12:35,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:12:35,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:12:35,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:12:35,970 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:12:35,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:12:35,970 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 22:12:35,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:12:35,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 22:12:35,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:12:35,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:12:35,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:12:35,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:12:35,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 22:12:35,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:12:35,972 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:12:35,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:12:35,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:12:35,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:12:35,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:12:35,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:12:35,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:12:35,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:12:35,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:12:35,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:12:35,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:12:35,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:12:35,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:12:35,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:12:35,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-21 22:12:36,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:12:36,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:12:36,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:12:36,290 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:12:36,291 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:12:36,291 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2020-08-21 22:12:36,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e2d03bcb/a7ee89087e5a448aa9dc81c87c7300d9/FLAGdbf290d95 [2020-08-21 22:12:36,967 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:12:36,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label07.c [2020-08-21 22:12:36,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e2d03bcb/a7ee89087e5a448aa9dc81c87c7300d9/FLAGdbf290d95 [2020-08-21 22:12:37,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e2d03bcb/a7ee89087e5a448aa9dc81c87c7300d9 [2020-08-21 22:12:37,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:12:37,209 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:12:37,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:12:37,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:12:37,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:12:37,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:37,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37, skipping insertion in model container [2020-08-21 22:12:37,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:37,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:12:37,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:12:37,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:12:37,699 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:12:37,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:12:37,960 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:12:37,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37 WrapperNode [2020-08-21 22:12:37,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:12:37,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:12:37,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:12:37,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:12:37,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:37,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:37,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:37,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:38,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:38,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:38,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... [2020-08-21 22:12:38,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:12:38,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:12:38,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:12:38,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:12:38,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:12:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:12:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:12:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 22:12:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:12:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 22:12:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:12:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 22:12:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 22:12:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:12:38,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:12:38,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:12:39,368 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:12:39,368 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 22:12:39,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:12:39 BoogieIcfgContainer [2020-08-21 22:12:39,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:12:39,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:12:39,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:12:39,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:12:39,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:12:37" (1/3) ... [2020-08-21 22:12:39,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:12:39, skipping insertion in model container [2020-08-21 22:12:39,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:12:37" (2/3) ... [2020-08-21 22:12:39,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:12:39, skipping insertion in model container [2020-08-21 22:12:39,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:12:39" (3/3) ... [2020-08-21 22:12:39,392 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label07.c [2020-08-21 22:12:39,403 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:12:39,416 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:12:39,434 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:12:39,468 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:12:39,469 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:12:39,469 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:12:39,469 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:12:39,470 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:12:39,470 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:12:39,470 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:12:39,470 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:12:39,495 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 22:12:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-21 22:12:39,518 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:12:39,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:12:39,520 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:12:39,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:12:39,526 INFO L82 PathProgramCache]: Analyzing trace with hash -897711290, now seen corresponding path program 1 times [2020-08-21 22:12:39,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:12:39,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041557878] [2020-08-21 22:12:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:12:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:40,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:12:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:12:40,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041557878] [2020-08-21 22:12:40,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:12:40,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 22:12:40,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776286893] [2020-08-21 22:12:40,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 22:12:40,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:12:40,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 22:12:40,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 22:12:40,188 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 22:12:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:12:42,242 INFO L93 Difference]: Finished difference Result 723 states and 1255 transitions. [2020-08-21 22:12:42,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 22:12:42,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 110 [2020-08-21 22:12:42,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:12:42,268 INFO L225 Difference]: With dead ends: 723 [2020-08-21 22:12:42,268 INFO L226 Difference]: Without dead ends: 423 [2020-08-21 22:12:42,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:12:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-21 22:12:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-21 22:12:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-21 22:12:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-08-21 22:12:42,374 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 110 [2020-08-21 22:12:42,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:12:42,375 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-08-21 22:12:42,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 22:12:42,375 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-08-21 22:12:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-08-21 22:12:42,381 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:12:42,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:12:42,382 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:12:42,382 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:12:42,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:12:42,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1715018595, now seen corresponding path program 1 times [2020-08-21 22:12:42,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:12:42,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183509594] [2020-08-21 22:12:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:12:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:42,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:12:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:42,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:12:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:12:42,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183509594] [2020-08-21 22:12:42,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:12:42,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 22:12:42,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027567399] [2020-08-21 22:12:42,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 22:12:42,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:12:42,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 22:12:42,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 22:12:42,645 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 8 states. [2020-08-21 22:12:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:12:44,134 INFO L93 Difference]: Finished difference Result 1269 states and 1843 transitions. [2020-08-21 22:12:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 22:12:44,135 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-08-21 22:12:44,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:12:44,145 INFO L225 Difference]: With dead ends: 1269 [2020-08-21 22:12:44,145 INFO L226 Difference]: Without dead ends: 858 [2020-08-21 22:12:44,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-21 22:12:44,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-08-21 22:12:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 834. [2020-08-21 22:12:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-08-21 22:12:44,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1167 transitions. [2020-08-21 22:12:44,208 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1167 transitions. Word has length 120 [2020-08-21 22:12:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:12:44,208 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1167 transitions. [2020-08-21 22:12:44,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 22:12:44,209 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1167 transitions. [2020-08-21 22:12:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-08-21 22:12:44,217 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:12:44,218 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:12:44,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 22:12:44,218 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:12:44,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:12:44,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1875176562, now seen corresponding path program 1 times [2020-08-21 22:12:44,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:12:44,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968434240] [2020-08-21 22:12:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:12:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:44,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:12:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:12:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:44,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-21 22:12:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 22:12:44,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968434240] [2020-08-21 22:12:44,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:12:44,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 22:12:44,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696573454] [2020-08-21 22:12:44,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:12:44,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:12:44,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:12:44,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:12:44,490 INFO L87 Difference]: Start difference. First operand 834 states and 1167 transitions. Second operand 7 states. [2020-08-21 22:12:46,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:12:46,304 INFO L93 Difference]: Finished difference Result 1843 states and 2636 transitions. [2020-08-21 22:12:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 22:12:46,305 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-08-21 22:12:46,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:12:46,321 INFO L225 Difference]: With dead ends: 1843 [2020-08-21 22:12:46,321 INFO L226 Difference]: Without dead ends: 1015 [2020-08-21 22:12:46,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-08-21 22:12:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-08-21 22:12:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 983. [2020-08-21 22:12:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-08-21 22:12:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1366 transitions. [2020-08-21 22:12:46,405 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1366 transitions. Word has length 144 [2020-08-21 22:12:46,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:12:46,406 INFO L479 AbstractCegarLoop]: Abstraction has 983 states and 1366 transitions. [2020-08-21 22:12:46,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:12:46,406 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1366 transitions. [2020-08-21 22:12:46,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-08-21 22:12:46,417 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:12:46,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:12:46,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 22:12:46,419 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:12:46,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:12:46,419 INFO L82 PathProgramCache]: Analyzing trace with hash 549208854, now seen corresponding path program 1 times [2020-08-21 22:12:46,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:12:46,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603343821] [2020-08-21 22:12:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:12:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:46,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:12:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:46,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:12:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:46,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 22:12:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 22:12:46,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603343821] [2020-08-21 22:12:46,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:12:46,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 22:12:46,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413637269] [2020-08-21 22:12:46,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 22:12:46,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:12:46,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 22:12:46,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 22:12:46,681 INFO L87 Difference]: Start difference. First operand 983 states and 1366 transitions. Second operand 7 states. [2020-08-21 22:12:48,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:12:48,006 INFO L93 Difference]: Finished difference Result 2576 states and 3692 transitions. [2020-08-21 22:12:48,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 22:12:48,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 148 [2020-08-21 22:12:48,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:12:48,018 INFO L225 Difference]: With dead ends: 2576 [2020-08-21 22:12:48,018 INFO L226 Difference]: Without dead ends: 1599 [2020-08-21 22:12:48,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 22:12:48,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2020-08-21 22:12:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1430. [2020-08-21 22:12:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1430 states. [2020-08-21 22:12:48,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 1875 transitions. [2020-08-21 22:12:48,084 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 1875 transitions. Word has length 148 [2020-08-21 22:12:48,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:12:48,085 INFO L479 AbstractCegarLoop]: Abstraction has 1430 states and 1875 transitions. [2020-08-21 22:12:48,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 22:12:48,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 1875 transitions. [2020-08-21 22:12:48,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-21 22:12:48,091 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:12:48,091 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:12:48,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 22:12:48,092 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:12:48,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:12:48,092 INFO L82 PathProgramCache]: Analyzing trace with hash -590518397, now seen corresponding path program 1 times [2020-08-21 22:12:48,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:12:48,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69978626] [2020-08-21 22:12:48,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:12:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:48,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:12:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:48,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 22:12:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:48,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 22:12:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:48,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-21 22:12:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:12:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-21 22:12:48,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69978626] [2020-08-21 22:12:48,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 22:12:48,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 22:12:48,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902551157] [2020-08-21 22:12:48,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 22:12:48,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:12:48,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 22:12:48,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 22:12:48,443 INFO L87 Difference]: Start difference. First operand 1430 states and 1875 transitions. Second operand 8 states. [2020-08-21 22:12:50,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:12:50,841 INFO L93 Difference]: Finished difference Result 4139 states and 5614 transitions. [2020-08-21 22:12:50,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 22:12:50,841 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 177 [2020-08-21 22:12:50,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:12:50,842 INFO L225 Difference]: With dead ends: 4139 [2020-08-21 22:12:50,842 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 22:12:50,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-21 22:12:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 22:12:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 22:12:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 22:12:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 22:12:50,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2020-08-21 22:12:50,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:12:50,855 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 22:12:50,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 22:12:50,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 22:12:50,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 22:12:50,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 22:12:50,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 22:12:51,364 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 32 [2020-08-21 22:12:51,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:12:51,467 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-21 22:12:51,467 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:12:51,468 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 22:12:51,468 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 22:12:51,468 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,468 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,468 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,469 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,471 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,472 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,472 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 22:12:51,472 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 22:12:51,472 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 22:12:51,472 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 22:12:51,473 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 22:12:51,473 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 22:12:51,473 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 22:12:51,473 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 22:12:51,473 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 22:12:51,473 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 22:12:51,473 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,474 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,474 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,474 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,474 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,474 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,474 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 22:12:51,474 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 22:12:51,477 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 22:12:51,477 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 22:12:51,478 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 22:12:51,478 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 22:12:51,478 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 22:12:51,478 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 22:12:51,478 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 22:12:51,478 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 22:12:51,478 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 22:12:51,479 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 488) no Hoare annotation was computed. [2020-08-21 22:12:51,479 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 22:12:51,479 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 22:12:51,479 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 22:12:51,479 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 22:12:51,479 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,479 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,480 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,480 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,480 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,480 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 22:12:51,481 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 22:12:51,481 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 22:12:51,481 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 22:12:51,481 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 22:12:51,481 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 22:12:51,482 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 22:12:51,482 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 22:12:51,482 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 22:12:51,482 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,482 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,482 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,483 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,483 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,483 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 22:12:51,484 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 22:12:51,484 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 22:12:51,484 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 22:12:51,484 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 22:12:51,485 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 22:12:51,485 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 22:12:51,485 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 22:12:51,485 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 22:12:51,485 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 22:12:51,485 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 22:12:51,485 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 22:12:51,486 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 22:12:51,487 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,488 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,488 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,488 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,488 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,488 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,488 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 22:12:51,488 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 22:12:51,489 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 22:12:51,490 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 22:12:51,490 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 22:12:51,490 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 22:12:51,490 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 22:12:51,490 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 22:12:51,491 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,491 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,491 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,491 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,491 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,492 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 22:12:51,492 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 22:12:51,492 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,493 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,494 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,494 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,494 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 22:12:51,495 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 22:12:51,495 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 22:12:51,495 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 22:12:51,498 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 22:12:51,498 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 22:12:51,498 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 22:12:51,498 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 22:12:51,499 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 22:12:51,500 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 22:12:51,501 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)))) (and (or (not (<= |old(~a16~0)| 5)) .cse0) (or .cse0 (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1)) (or (not (= |old(~a20~0)| 1)) .cse0))) [2020-08-21 22:12:51,501 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 22:12:51,501 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,501 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,501 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,501 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,503 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 22:12:51,504 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,504 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,504 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 22:12:51,504 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 22:12:51,505 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 22:12:51,505 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 22:12:51,505 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 22:12:51,505 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 22:12:51,505 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 22:12:51,505 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 22:12:51,506 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 22:12:51,506 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,507 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 22:12:51,508 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 22:12:51,509 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 22:12:51,510 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 22:12:51,511 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 22:12:51,511 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 22:12:51,511 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 22:12:51,511 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 22:12:51,511 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 22:12:51,511 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 22:12:51,511 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:12:51,512 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (<= ~a7~0 0) (= ~a20~0 1) (= ~a17~0 1)) [2020-08-21 22:12:51,512 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 22:12:51,512 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:12:51,512 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a17~0 1)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1))) [2020-08-21 22:12:51,512 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 22:12:51,512 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (and (= ~a21~0 1) (not (= ~a7~0 1))) (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= |old(~a21~0)| 1))) [2020-08-21 22:12:51,512 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 22:12:51,513 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 22:12:51,513 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (and (= ~a21~0 1) (not (= ~a7~0 1))) (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= |old(~a21~0)| 1))) [2020-08-21 22:12:51,513 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 22:12:51,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 10:12:51 BoogieIcfgContainer [2020-08-21 22:12:51,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 22:12:51,545 INFO L168 Benchmark]: Toolchain (without parser) took 14334.83 ms. Allocated memory was 137.9 MB in the beginning and 397.4 MB in the end (delta: 259.5 MB). Free memory was 99.3 MB in the beginning and 81.9 MB in the end (delta: 17.4 MB). Peak memory consumption was 276.9 MB. Max. memory is 7.1 GB. [2020-08-21 22:12:51,547 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 22:12:51,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.34 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 168.7 MB in the end (delta: -69.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-08-21 22:12:51,554 INFO L168 Benchmark]: Boogie Preprocessor took 104.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.7 MB in the beginning and 163.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-21 22:12:51,555 INFO L168 Benchmark]: RCFGBuilder took 1312.21 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 163.7 MB in the beginning and 177.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2020-08-21 22:12:51,556 INFO L168 Benchmark]: TraceAbstraction took 12158.40 ms. Allocated memory was 232.3 MB in the beginning and 397.4 MB in the end (delta: 165.2 MB). Free memory was 177.6 MB in the beginning and 81.9 MB in the end (delta: 95.8 MB). Peak memory consumption was 260.9 MB. Max. memory is 7.1 GB. [2020-08-21 22:12:51,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.34 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 168.7 MB in the end (delta: -69.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.7 MB in the beginning and 163.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1312.21 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 163.7 MB in the beginning and 177.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12158.40 ms. Allocated memory was 232.3 MB in the beginning and 397.4 MB in the end (delta: 165.2 MB). Free memory was 177.6 MB in the beginning and 81.9 MB in the end (delta: 95.8 MB). Peak memory consumption was 260.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 488]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((a21 == 1 && !(a7 == 1)) || !(\old(a17) == 1)) || !(\old(a7) <= 0)) || a16 <= 5) || !(\old(a16) <= 5)) || !(\old(a20) == 1)) || a20 == 1) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 2848 SDslu, 215 SDs, 0 SdLazy, 4328 SolverSat, 1041 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1430occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 231 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 55 PreInvPairs, 99 NumberOfFragments, 261 HoareAnnotationTreeSize, 55 FomulaSimplifications, 26319 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1597 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 699 NumberOfCodeBlocks, 699 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 694 ConstructedInterpolants, 0 QuantifiedInterpolants, 255656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 196/204 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...