/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:35:36,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:35:36,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:35:36,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:35:36,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:35:36,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:35:36,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:35:36,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:35:36,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:35:36,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:35:36,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:35:36,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:35:36,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:35:36,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:35:36,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:35:36,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:35:36,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:35:36,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:35:36,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:35:36,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:35:36,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:35:36,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:35:36,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:35:36,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:35:36,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 13:35:36,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 13:35:36,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 13:35:36,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 13:35:36,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 13:35:36,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 13:35:36,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 13:35:36,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 13:35:36,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 13:35:36,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 13:35:36,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 13:35:36,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 13:35:36,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 13:35:36,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 13:35:36,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:35:36,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:35:36,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:35:36,935 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 [2020-09-04 13:35:36,983 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:35:36,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:35:36,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:35:36,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:35:36,986 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:35:36,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:35:36,986 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:35:36,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:35:36,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:35:36,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:35:36,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:35:36,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:35:36,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:35:36,989 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:35:36,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:35:36,989 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:35:36,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:35:36,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:35:36,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:35:36,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:35:36,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:35:36,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:35:36,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:35:36,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:35:36,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:35:36,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:35:36,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:35:36,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:35:36,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:35:36,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:35:37,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:35:37,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:35:37,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:35:37,435 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:35:37,436 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:35:37,437 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-09-04 13:35:37,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b46f5676f/177e757967084d7a9aa00bf4eee632f6/FLAGd6881bde9 [2020-09-04 13:35:38,117 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:35:38,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-09-04 13:35:38,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b46f5676f/177e757967084d7a9aa00bf4eee632f6/FLAGd6881bde9 [2020-09-04 13:35:38,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b46f5676f/177e757967084d7a9aa00bf4eee632f6 [2020-09-04 13:35:38,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:35:38,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:35:38,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:35:38,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:35:38,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:35:38,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:35:38" (1/1) ... [2020-09-04 13:35:38,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:38, skipping insertion in model container [2020-09-04 13:35:38,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:35:38" (1/1) ... [2020-09-04 13:35:38,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:35:38,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:35:38,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:35:38,906 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:35:39,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:35:39,145 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:35:39,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39 WrapperNode [2020-09-04 13:35:39,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:35:39,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:35:39,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:35:39,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:35:39,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (1/1) ... [2020-09-04 13:35:39,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (1/1) ... [2020-09-04 13:35:39,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (1/1) ... [2020-09-04 13:35:39,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (1/1) ... [2020-09-04 13:35:39,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (1/1) ... [2020-09-04 13:35:39,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (1/1) ... [2020-09-04 13:35:39,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (1/1) ... [2020-09-04 13:35:39,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:35:39,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:35:39,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:35:39,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:35:39,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (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 [2020-09-04 13:35:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:35:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:35:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:35:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:35:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:35:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:35:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:35:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:35:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:35:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:35:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:35:40,508 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:35:40,508 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:35:40,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:35:40 BoogieIcfgContainer [2020-09-04 13:35:40,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:35:40,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:35:40,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:35:40,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:35:40,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:35:38" (1/3) ... [2020-09-04 13:35:40,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3657346b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:35:40, skipping insertion in model container [2020-09-04 13:35:40,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:35:39" (2/3) ... [2020-09-04 13:35:40,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3657346b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:35:40, skipping insertion in model container [2020-09-04 13:35:40,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:35:40" (3/3) ... [2020-09-04 13:35:40,525 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-09-04 13:35:40,536 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:35:40,546 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:35:40,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:35:40,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:35:40,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:35:40,601 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:35:40,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:35:40,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:35:40,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:35:40,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:35:40,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:35:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-04 13:35:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-09-04 13:35:40,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:40,642 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] [2020-09-04 13:35:40,642 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-09-04 13:35:40,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:40,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713130766] [2020-09-04 13:35:40,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:41,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:35:41,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713130766] [2020-09-04 13:35:41,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:35:41,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:35:41,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548669496] [2020-09-04 13:35:41,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:35:41,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:41,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:35:41,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:35:41,352 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-09-04 13:35:43,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:43,046 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-09-04 13:35:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:35:43,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-09-04 13:35:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:43,076 INFO L225 Difference]: With dead ends: 627 [2020-09-04 13:35:43,076 INFO L226 Difference]: Without dead ends: 327 [2020-09-04 13:35:43,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:35:43,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-09-04 13:35:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-09-04 13:35:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-09-04 13:35:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-09-04 13:35:43,192 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 98 [2020-09-04 13:35:43,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:43,193 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-09-04 13:35:43,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:35:43,193 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-09-04 13:35:43,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-09-04 13:35:43,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:43,201 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:35:43,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:35:43,201 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:43,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:43,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-09-04 13:35:43,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:43,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376143389] [2020-09-04 13:35:43,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:43,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:43,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:35:43,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376143389] [2020-09-04 13:35:43,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:35:43,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:35:43,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308711651] [2020-09-04 13:35:43,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:35:43,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:43,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:35:43,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:35:43,445 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states. [2020-09-04 13:35:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:44,465 INFO L93 Difference]: Finished difference Result 635 states and 968 transitions. [2020-09-04 13:35:44,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 13:35:44,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-09-04 13:35:44,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:44,470 INFO L225 Difference]: With dead ends: 635 [2020-09-04 13:35:44,470 INFO L226 Difference]: Without dead ends: 322 [2020-09-04 13:35:44,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:35:44,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-09-04 13:35:44,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310. [2020-09-04 13:35:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-09-04 13:35:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2020-09-04 13:35:44,503 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 113 [2020-09-04 13:35:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:44,503 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2020-09-04 13:35:44,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:35:44,504 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2020-09-04 13:35:44,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-04 13:35:44,509 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:44,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:35:44,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:35:44,510 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:44,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:44,511 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-09-04 13:35:44,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:44,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481869360] [2020-09-04 13:35:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:44,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:44,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:35:44,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481869360] [2020-09-04 13:35:44,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:35:44,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:35:44,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460401070] [2020-09-04 13:35:44,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:35:44,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:44,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:35:44,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:35:44,779 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand 8 states. [2020-09-04 13:35:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:46,820 INFO L93 Difference]: Finished difference Result 1088 states and 1576 transitions. [2020-09-04 13:35:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 13:35:46,822 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-09-04 13:35:46,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:46,827 INFO L225 Difference]: With dead ends: 1088 [2020-09-04 13:35:46,827 INFO L226 Difference]: Without dead ends: 784 [2020-09-04 13:35:46,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:35:46,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-09-04 13:35:46,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 612. [2020-09-04 13:35:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-09-04 13:35:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 841 transitions. [2020-09-04 13:35:46,872 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 841 transitions. Word has length 120 [2020-09-04 13:35:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:46,873 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 841 transitions. [2020-09-04 13:35:46,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:35:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 841 transitions. [2020-09-04 13:35:46,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-04 13:35:46,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:46,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:35:46,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 13:35:46,878 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:46,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:46,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-09-04 13:35:46,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:46,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590282041] [2020-09-04 13:35:46,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:47,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:47,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:47,216 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:35:47,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590282041] [2020-09-04 13:35:47,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13639323] [2020-09-04 13:35:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:47,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-09-04 13:35:47,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:35:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:35:47,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:35:47,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-09-04 13:35:47,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021024562] [2020-09-04 13:35:47,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:35:47,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:47,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:35:47,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:35:47,449 INFO L87 Difference]: Start difference. First operand 612 states and 841 transitions. Second operand 5 states. [2020-09-04 13:35:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:48,298 INFO L93 Difference]: Finished difference Result 1850 states and 2670 transitions. [2020-09-04 13:35:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:35:48,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-09-04 13:35:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:48,311 INFO L225 Difference]: With dead ends: 1850 [2020-09-04 13:35:48,311 INFO L226 Difference]: Without dead ends: 1244 [2020-09-04 13:35:48,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:35:48,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2020-09-04 13:35:48,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1226. [2020-09-04 13:35:48,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1226 states. [2020-09-04 13:35:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1646 transitions. [2020-09-04 13:35:48,389 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1646 transitions. Word has length 124 [2020-09-04 13:35:48,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:48,390 INFO L479 AbstractCegarLoop]: Abstraction has 1226 states and 1646 transitions. [2020-09-04 13:35:48,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:35:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1646 transitions. [2020-09-04 13:35:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-04 13:35:48,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:48,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:35:48,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:48,613 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:48,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:48,613 INFO L82 PathProgramCache]: Analyzing trace with hash -570592108, now seen corresponding path program 1 times [2020-09-04 13:35:48,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:48,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634242126] [2020-09-04 13:35:48,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:48,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:48,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:35:48,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634242126] [2020-09-04 13:35:48,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:35:48,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:35:48,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188301057] [2020-09-04 13:35:48,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:35:48,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:48,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:35:48,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:35:48,831 INFO L87 Difference]: Start difference. First operand 1226 states and 1646 transitions. Second operand 8 states. [2020-09-04 13:35:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:50,578 INFO L93 Difference]: Finished difference Result 3498 states and 4806 transitions. [2020-09-04 13:35:50,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 13:35:50,583 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-09-04 13:35:50,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:50,594 INFO L225 Difference]: With dead ends: 3498 [2020-09-04 13:35:50,594 INFO L226 Difference]: Without dead ends: 2278 [2020-09-04 13:35:50,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:35:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2020-09-04 13:35:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2128. [2020-09-04 13:35:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2020-09-04 13:35:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2618 transitions. [2020-09-04 13:35:50,724 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2618 transitions. Word has length 133 [2020-09-04 13:35:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:50,724 INFO L479 AbstractCegarLoop]: Abstraction has 2128 states and 2618 transitions. [2020-09-04 13:35:50,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:35:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2618 transitions. [2020-09-04 13:35:50,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-04 13:35:50,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:50,731 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:35:50,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 13:35:50,732 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:50,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:50,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-09-04 13:35:50,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:50,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681391590] [2020-09-04 13:35:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:50,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:50,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-04 13:35:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:50,896 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:35:50,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681391590] [2020-09-04 13:35:50,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45138802] [2020-09-04 13:35:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:50,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:35:50,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:35:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:35:51,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:35:51,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-09-04 13:35:51,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253767563] [2020-09-04 13:35:51,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 13:35:51,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:51,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 13:35:51,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:35:51,026 INFO L87 Difference]: Start difference. First operand 2128 states and 2618 transitions. Second operand 7 states. [2020-09-04 13:35:52,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:52,909 INFO L93 Difference]: Finished difference Result 3996 states and 4889 transitions. [2020-09-04 13:35:52,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 13:35:52,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-09-04 13:35:52,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:52,922 INFO L225 Difference]: With dead ends: 3996 [2020-09-04 13:35:52,922 INFO L226 Difference]: Without dead ends: 1860 [2020-09-04 13:35:52,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:35:52,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-09-04 13:35:52,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1844. [2020-09-04 13:35:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1844 states. [2020-09-04 13:35:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2115 transitions. [2020-09-04 13:35:52,985 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2115 transitions. Word has length 146 [2020-09-04 13:35:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:52,986 INFO L479 AbstractCegarLoop]: Abstraction has 1844 states and 2115 transitions. [2020-09-04 13:35:52,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 13:35:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2115 transitions. [2020-09-04 13:35:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-04 13:35:52,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:52,991 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-04 13:35:53,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:53,205 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:53,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:53,205 INFO L82 PathProgramCache]: Analyzing trace with hash -686446993, now seen corresponding path program 1 times [2020-09-04 13:35:53,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:53,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17256143] [2020-09-04 13:35:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:53,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:53,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:53,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-04 13:35:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:53,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-04 13:35:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-04 13:35:53,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17256143] [2020-09-04 13:35:53,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448111973] [2020-09-04 13:35:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:53,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:35:53,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:35:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-04 13:35:53,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:35:53,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-09-04 13:35:53,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542640219] [2020-09-04 13:35:53,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:35:53,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:53,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:35:53,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:35:53,742 INFO L87 Difference]: Start difference. First operand 1844 states and 2115 transitions. Second operand 11 states. [2020-09-04 13:35:57,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:57,221 INFO L93 Difference]: Finished difference Result 3816 states and 4492 transitions. [2020-09-04 13:35:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 13:35:57,221 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 159 [2020-09-04 13:35:57,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:57,231 INFO L225 Difference]: With dead ends: 3816 [2020-09-04 13:35:57,231 INFO L226 Difference]: Without dead ends: 1983 [2020-09-04 13:35:57,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-04 13:35:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2020-09-04 13:35:57,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1832. [2020-09-04 13:35:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1832 states. [2020-09-04 13:35:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2044 transitions. [2020-09-04 13:35:57,287 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2044 transitions. Word has length 159 [2020-09-04 13:35:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:57,288 INFO L479 AbstractCegarLoop]: Abstraction has 1832 states and 2044 transitions. [2020-09-04 13:35:57,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:35:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2044 transitions. [2020-09-04 13:35:57,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-04 13:35:57,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:57,294 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-09-04 13:35:57,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:57,509 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:57,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:57,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1593738695, now seen corresponding path program 1 times [2020-09-04 13:35:57,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:57,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708893642] [2020-09-04 13:35:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:57,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:57,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:57,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-04 13:35:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:57,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-04 13:35:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:57,749 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 80 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-04 13:35:57,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708893642] [2020-09-04 13:35:57,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394319285] [2020-09-04 13:35:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:57,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2020-09-04 13:35:57,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:35:57,906 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-04 13:35:57,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:35:57,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-09-04 13:35:57,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346535052] [2020-09-04 13:35:57,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:35:57,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:57,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:35:57,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:35:57,911 INFO L87 Difference]: Start difference. First operand 1832 states and 2044 transitions. Second operand 3 states. [2020-09-04 13:35:58,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:35:58,506 INFO L93 Difference]: Finished difference Result 3646 states and 4086 transitions. [2020-09-04 13:35:58,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:35:58,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-09-04 13:35:58,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:35:58,516 INFO L225 Difference]: With dead ends: 3646 [2020-09-04 13:35:58,516 INFO L226 Difference]: Without dead ends: 2266 [2020-09-04 13:35:58,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:35:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2020-09-04 13:35:58,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 1826. [2020-09-04 13:35:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1826 states. [2020-09-04 13:35:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2030 transitions. [2020-09-04 13:35:58,577 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2030 transitions. Word has length 179 [2020-09-04 13:35:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:35:58,581 INFO L479 AbstractCegarLoop]: Abstraction has 1826 states and 2030 transitions. [2020-09-04 13:35:58,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:35:58,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2030 transitions. [2020-09-04 13:35:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-04 13:35:58,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:35:58,587 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1] [2020-09-04 13:35:58,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:58,800 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:35:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:35:58,801 INFO L82 PathProgramCache]: Analyzing trace with hash 884199043, now seen corresponding path program 1 times [2020-09-04 13:35:58,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:35:58,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343687421] [2020-09-04 13:35:58,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:35:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:58,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:35:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:58,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:35:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:58,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-04 13:35:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:59,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-04 13:35:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 113 proven. 25 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-04 13:35:59,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343687421] [2020-09-04 13:35:59,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150980557] [2020-09-04 13:35:59,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:35:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:35:59,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:35:59,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:35:59,294 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-04 13:35:59,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:35:59,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-09-04 13:35:59,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048612850] [2020-09-04 13:35:59,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:35:59,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:35:59,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:35:59,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:35:59,297 INFO L87 Difference]: Start difference. First operand 1826 states and 2030 transitions. Second operand 10 states. [2020-09-04 13:36:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:36:01,612 INFO L93 Difference]: Finished difference Result 3967 states and 4494 transitions. [2020-09-04 13:36:01,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 13:36:01,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2020-09-04 13:36:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:36:01,622 INFO L225 Difference]: With dead ends: 3967 [2020-09-04 13:36:01,622 INFO L226 Difference]: Without dead ends: 1665 [2020-09-04 13:36:01,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2020-09-04 13:36:01,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2020-09-04 13:36:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1646. [2020-09-04 13:36:01,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2020-09-04 13:36:01,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 1727 transitions. [2020-09-04 13:36:01,666 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 1727 transitions. Word has length 210 [2020-09-04 13:36:01,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:36:01,667 INFO L479 AbstractCegarLoop]: Abstraction has 1646 states and 1727 transitions. [2020-09-04 13:36:01,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:36:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 1727 transitions. [2020-09-04 13:36:01,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-04 13:36:01,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:01,673 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, 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] [2020-09-04 13:36:01,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:36:01,887 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:01,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:01,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-09-04 13:36:01,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:01,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119207869] [2020-09-04 13:36:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:02,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:02,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:36:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:02,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-04 13:36:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:02,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-04 13:36:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-09-04 13:36:02,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119207869] [2020-09-04 13:36:02,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462400139] [2020-09-04 13:36:02,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:36:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:02,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:36:02,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:36:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-09-04 13:36:02,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:36:02,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-09-04 13:36:02,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807656395] [2020-09-04 13:36:02,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:36:02,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:02,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:36:02,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:36:02,414 INFO L87 Difference]: Start difference. First operand 1646 states and 1727 transitions. Second operand 3 states. [2020-09-04 13:36:02,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:36:02,923 INFO L93 Difference]: Finished difference Result 3132 states and 3292 transitions. [2020-09-04 13:36:02,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:36:02,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-09-04 13:36:02,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:36:02,924 INFO L225 Difference]: With dead ends: 3132 [2020-09-04 13:36:02,924 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:36:02,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:36:02,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:36:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:36:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:36:02,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:36:02,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-09-04 13:36:02,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:36:02,931 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:36:02,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:36:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:36:02,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:36:03,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:36:03,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:36:04,581 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2020-09-04 13:36:04,817 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 108 [2020-09-04 13:36:06,200 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 146 DAG size of output: 68 [2020-09-04 13:36:06,926 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 56 [2020-09-04 13:36:07,581 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 56 [2020-09-04 13:36:07,586 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:36:07,587 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-04 13:36:07,587 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:36:07,587 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,588 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,588 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,588 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,588 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,588 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-04 13:36:07,588 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-04 13:36:07,588 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-04 13:36:07,589 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-04 13:36:07,590 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-04 13:36:07,591 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-04 13:36:07,592 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-04 13:36:07,592 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-04 13:36:07,592 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-04 13:36:07,592 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-04 13:36:07,592 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,592 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,592 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-04 13:36:07,593 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,594 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,595 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,595 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,595 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,595 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-04 13:36:07,595 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-04 13:36:07,595 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-04 13:36:07,595 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-04 13:36:07,596 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-04 13:36:07,597 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-04 13:36:07,598 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,599 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,600 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,600 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-04 13:36:07,600 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,600 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-04 13:36:07,600 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,600 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-04 13:36:07,600 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-04 13:36:07,601 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,602 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-04 13:36:07,603 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,604 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-04 13:36:07,605 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-04 13:36:07,606 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-04 13:36:07,607 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,607 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,607 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,607 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (= ~a28~0 |old(~a28~0)|)) (.cse16 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 1)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (not (= |old(~a25~0)| 1))) (.cse13 (and .cse4 .cse16 .cse5 .cse6 .cse7)) (.cse11 (not (<= |old(~a17~0)| 7))) (.cse14 (= |old(~a11~0)| 1)) (.cse1 (not (= |old(~a19~0)| 1))) (.cse2 (= 11 |old(~a28~0)|)) (.cse8 (= |old(~a17~0)| |old(~a28~0)|)) (.cse15 (not (<= |old(~a28~0)| 7))) (.cse9 (not (<= |old(~a17~0)| 8))) (.cse10 (and .cse4 .cse16 .cse5 (= ~a25~0 |old(~a25~0)|) .cse7)) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse12 (not (<= |old(~a25~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 (<= 8 ~a17~0) .cse6 (<= ~a17~0 8) .cse7) .cse8) (or .cse9 .cse10 .cse2 .cse11 .cse12 .cse8) (or .cse0 .cse13 .cse2 .cse3 .cse14 (not (<= 10 |old(~a28~0)|))) (or .cse15 .cse0 .cse13 .cse3 .cse14) (or .cse0 .cse1 .cse3 .cse14 (and .cse4 .cse16 .cse5 (= ~a19~0 1) .cse6)) (or .cse0 .cse13 .cse2 .cse11 .cse8) (or .cse9 .cse10 .cse2 (= 9 |old(~a28~0)|) .cse3 .cse12 .cse14) (or .cse15 .cse0 .cse13 .cse1 .cse11 (not .cse14)) (or .cse9 .cse1 .cse10 .cse2 .cse12 .cse8) (or .cse15 .cse9 .cse10 .cse3 .cse12)))) [2020-09-04 13:36:07,607 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-04 13:36:07,608 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-04 13:36:07,609 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-04 13:36:07,609 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-04 13:36:07,609 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-04 13:36:07,609 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-04 13:36:07,609 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-04 13:36:07,609 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-04 13:36:07,609 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-04 13:36:07,610 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-04 13:36:07,611 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,612 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-04 13:36:07,613 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-04 13:36:07,614 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-04 13:36:07,615 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-04 13:36:07,615 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-04 13:36:07,615 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-04 13:36:07,615 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-04 13:36:07,615 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-04 13:36:07,615 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:36:07,615 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (<= 8 ~a17~0) (not (= ~a11~0 1)) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0)) [2020-09-04 13:36:07,616 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:36:07,616 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:36:07,616 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (= |old(~a11~0)| 1) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|))) [2020-09-04 13:36:07,616 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse6 (= ~a11~0 1))) (let ((.cse5 (= ~a19~0 1)) (.cse10 (<= 8 ~a17~0)) (.cse2 (<= ~a17~0 8)) (.cse7 (<= ~a28~0 7)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse1 (not .cse6)) (.cse9 (<= ~a25~0 0)) (.cse4 (not (= ~a28~0 ~a17~0))) (.cse0 (= ~a25~0 1)) (.cse8 (<= ~a17~0 7)) (.cse3 (not (= ~a28~0 11)))) (or (and (<= 10 ~a28~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse0 .cse2 .cse3) (not (<= 8 |old(~a17~0)|)) (not (= |old(~a19~0)| 1)) (and .cse5 .cse0 .cse6 .cse7 .cse8) (and .cse4 .cse5 .cse2 .cse9 .cse3) (not (<= |old(~a25~0)| 0)) (and .cse5 .cse10 .cse0 .cse1 .cse2) (and .cse11 .cse7 .cse9) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse4 .cse9 .cse8 .cse3) (and .cse10 .cse0 .cse1 .cse2 .cse7) (= |old(~a11~0)| 1) (and (not (= ~a28~0 9)) .cse11 .cse1 .cse9 .cse3) (and .cse4 .cse0 .cse8 .cse3)))) [2020-09-04 13:36:07,616 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-04 13:36:07,616 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-04 13:36:07,617 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse6 (= ~a11~0 1))) (let ((.cse5 (= ~a19~0 1)) (.cse10 (<= 8 ~a17~0)) (.cse2 (<= ~a17~0 8)) (.cse7 (<= ~a28~0 7)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse1 (not .cse6)) (.cse9 (<= ~a25~0 0)) (.cse4 (not (= ~a28~0 ~a17~0))) (.cse0 (= ~a25~0 1)) (.cse8 (<= ~a17~0 7)) (.cse3 (not (= ~a28~0 11)))) (or (and (<= 10 ~a28~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse0 .cse2 .cse3) (not (<= 8 |old(~a17~0)|)) (not (= |old(~a19~0)| 1)) (and .cse5 .cse0 .cse6 .cse7 .cse8) (and .cse4 .cse5 .cse2 .cse9 .cse3) (not (<= |old(~a25~0)| 0)) (and .cse5 .cse10 .cse0 .cse1 .cse2) (and .cse11 .cse7 .cse9) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse4 .cse9 .cse8 .cse3) (and .cse10 .cse0 .cse1 .cse2 .cse7) (= |old(~a11~0)| 1) (and (not (= ~a28~0 9)) .cse11 .cse1 .cse9 .cse3) (and .cse4 .cse0 .cse8 .cse3)))) [2020-09-04 13:36:07,617 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-04 13:36:07,617 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-04 13:36:07,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:36:07 BoogieIcfgContainer [2020-09-04 13:36:07,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:36:07,652 INFO L168 Benchmark]: Toolchain (without parser) took 29291.79 ms. Allocated memory was 149.4 MB in the beginning and 556.8 MB in the end (delta: 407.4 MB). Free memory was 102.4 MB in the beginning and 356.0 MB in the end (delta: -253.6 MB). Peak memory consumption was 384.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:36:07,656 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 149.4 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 13:36:07,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.83 ms. Allocated memory was 149.4 MB in the beginning and 208.1 MB in the end (delta: 58.7 MB). Free memory was 102.2 MB in the beginning and 175.1 MB in the end (delta: -72.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:36:07,658 INFO L168 Benchmark]: Boogie Preprocessor took 114.24 ms. Allocated memory is still 208.1 MB. Free memory was 175.1 MB in the beginning and 170.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:36:07,658 INFO L168 Benchmark]: RCFGBuilder took 1253.92 ms. Allocated memory was 208.1 MB in the beginning and 234.9 MB in the end (delta: 26.7 MB). Free memory was 170.5 MB in the beginning and 174.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:36:07,661 INFO L168 Benchmark]: TraceAbstraction took 27133.56 ms. Allocated memory was 234.9 MB in the beginning and 556.8 MB in the end (delta: 321.9 MB). Free memory was 174.0 MB in the beginning and 356.0 MB in the end (delta: -182.0 MB). Peak memory consumption was 370.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:36:07,671 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 149.4 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.83 ms. Allocated memory was 149.4 MB in the beginning and 208.1 MB in the end (delta: 58.7 MB). Free memory was 102.2 MB in the beginning and 175.1 MB in the end (delta: -72.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.24 ms. Allocated memory is still 208.1 MB. Free memory was 175.1 MB in the beginning and 170.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1253.92 ms. Allocated memory was 208.1 MB in the beginning and 234.9 MB in the end (delta: 26.7 MB). Free memory was 170.5 MB in the beginning and 174.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27133.56 ms. Allocated memory was 234.9 MB in the beginning and 556.8 MB in the end (delta: 321.9 MB). Free memory was 174.0 MB in the beginning and 356.0 MB in the end (delta: -182.0 MB). Peak memory consumption was 370.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((10 <= a28 && a25 == 1) && !(a11 == 1)) && a17 <= 8) && !(a28 == 11)) || ((((!(a28 == a17) && a19 == 1) && a25 == 1) && a17 <= 8) && !(a28 == 11))) || !(8 <= \old(a17))) || !(\old(a19) == 1)) || ((((a19 == 1 && a25 == 1) && a11 == 1) && a28 <= 7) && a17 <= 7)) || ((((!(a28 == a17) && a19 == 1) && a17 <= 8) && a25 <= 0) && !(a28 == 11))) || !(\old(a25) <= 0)) || ((((a19 == 1 && 8 <= a17) && a25 == 1) && !(a11 == 1)) && a17 <= 8)) || ((a17 == \old(a17) && a28 <= 7) && a25 <= 0)) || !(\old(a28) <= 7)) || !(\old(a17) <= 8)) || (((!(a28 == a17) && a25 <= 0) && a17 <= 7) && !(a28 == 11))) || ((((8 <= a17 && a25 == 1) && !(a11 == 1)) && a17 <= 8) && a28 <= 7)) || \old(a11) == 1) || ((((!(a28 == 9) && a17 == \old(a17)) && !(a11 == 1)) && a25 <= 0) && !(a28 == 11))) || (((!(a28 == a17) && a25 == 1) && a17 <= 7) && !(a28 == 11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.5s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 502 SDtfs, 5931 SDslu, 463 SDs, 0 SdLazy, 9348 SolverSat, 1683 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1229 GetRequests, 1125 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2128occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 986 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 95 PreInvPairs, 139 NumberOfFragments, 834 HoareAnnotationTreeSize, 95 FomulaSimplifications, 77205 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3331 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 2580 NumberOfCodeBlocks, 2580 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2564 ConstructedInterpolants, 0 QuantifiedInterpolants, 1016516 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2725 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1400/1449 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...