/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/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:32:30,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:32:30,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:32:30,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:32:30,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:32:30,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:32:30,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:32:30,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:32:30,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:32:30,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:32:30,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:32:30,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:32:30,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:32:30,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:32:30,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:32:30,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:32:30,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:32:30,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:32:30,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:32:30,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:32:30,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:32:30,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:32:30,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:32:30,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:32:30,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 13:32:30,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 13:32:30,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 13:32:30,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 13:32:30,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 13:32:30,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 13:32:30,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 13:32:30,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 13:32:30,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 13:32:30,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 13:32:30,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 13:32:30,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 13:32:30,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 13:32:30,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 13:32:30,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:32:30,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:32:30,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:32:30,335 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 13:32:30,383 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:32:30,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:32:30,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:32:30,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:32:30,386 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:32:30,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:32:30,387 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:32:30,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:32:30,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:32:30,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:32:30,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:32:30,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:32:30,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:32:30,389 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:32:30,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:32:30,390 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:32:30,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:32:30,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:32:30,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:32:30,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:32:30,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:32:30,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:32:30,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:32:30,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:32:30,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:32:30,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:32:30,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:32:30,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:32:30,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:32:30,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:32:30,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:32:30,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:32:30,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:32:30,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:32:30,902 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:32:30,904 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-09-04 13:32:30,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b8d0c24e/5acf05d7783e4f998aee8615955600df/FLAG467066ef8 [2020-09-04 13:32:31,655 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:32:31,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-09-04 13:32:31,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b8d0c24e/5acf05d7783e4f998aee8615955600df/FLAG467066ef8 [2020-09-04 13:32:31,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b8d0c24e/5acf05d7783e4f998aee8615955600df [2020-09-04 13:32:31,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:32:31,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:32:31,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:32:31,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:32:31,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:32:31,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:32:31" (1/1) ... [2020-09-04 13:32:31,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547fd1e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:31, skipping insertion in model container [2020-09-04 13:32:31,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:32:31" (1/1) ... [2020-09-04 13:32:31,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:32:31,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:32:32,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:32:32,456 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:32:32,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:32:32,747 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:32:32,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32 WrapperNode [2020-09-04 13:32:32,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:32:32,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:32:32,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:32:32,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:32:32,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (1/1) ... [2020-09-04 13:32:32,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (1/1) ... [2020-09-04 13:32:32,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (1/1) ... [2020-09-04 13:32:32,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (1/1) ... [2020-09-04 13:32:32,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (1/1) ... [2020-09-04 13:32:32,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (1/1) ... [2020-09-04 13:32:32,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (1/1) ... [2020-09-04 13:32:32,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:32:32,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:32:32,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:32:32,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:32:32,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (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 13:32:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:32:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:32:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:32:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:32:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:32:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:32:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:32:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:32:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:32:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:32:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:32:34,241 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:32:34,241 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:32:34,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:32:34 BoogieIcfgContainer [2020-09-04 13:32:34,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:32:34,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:32:34,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:32:34,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:32:34,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:32:31" (1/3) ... [2020-09-04 13:32:34,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528e4ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:32:34, skipping insertion in model container [2020-09-04 13:32:34,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:32" (2/3) ... [2020-09-04 13:32:34,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528e4ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:32:34, skipping insertion in model container [2020-09-04 13:32:34,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:32:34" (3/3) ... [2020-09-04 13:32:34,266 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-09-04 13:32:34,278 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:32:34,294 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:32:34,316 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:32:34,354 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:32:34,354 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:32:34,354 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:32:34,354 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:32:34,354 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:32:34,355 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:32:34,355 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:32:34,355 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:32:34,379 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-04 13:32:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-04 13:32:34,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:34,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:34,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:34,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:34,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-09-04 13:32:34,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:34,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944599576] [2020-09-04 13:32:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:34,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:35,117 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 13:32:35,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944599576] [2020-09-04 13:32:35,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:32:35,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:32:35,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341853912] [2020-09-04 13:32:35,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:32:35,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:35,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:32:35,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:32:35,162 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-09-04 13:32:37,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:37,452 INFO L93 Difference]: Finished difference Result 723 states and 1255 transitions. [2020-09-04 13:32:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:32:37,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-09-04 13:32:37,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:37,480 INFO L225 Difference]: With dead ends: 723 [2020-09-04 13:32:37,480 INFO L226 Difference]: Without dead ends: 423 [2020-09-04 13:32:37,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:32:37,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-04 13:32:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-09-04 13:32:37,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-09-04 13:32:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-09-04 13:32:37,591 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 122 [2020-09-04 13:32:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:37,592 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-09-04 13:32:37,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:32:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-09-04 13:32:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-04 13:32:37,598 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:37,599 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:37,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:32:37,600 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:37,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:37,600 INFO L82 PathProgramCache]: Analyzing trace with hash -259733235, now seen corresponding path program 1 times [2020-09-04 13:32:37,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:37,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23745402] [2020-09-04 13:32:37,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:37,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:37,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:32:37,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23745402] [2020-09-04 13:32:37,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:32:37,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:32:37,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209003094] [2020-09-04 13:32:37,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:32:37,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:37,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:32:37,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:32:37,844 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 8 states. [2020-09-04 13:32:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:39,341 INFO L93 Difference]: Finished difference Result 1269 states and 1843 transitions. [2020-09-04 13:32:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:32:39,342 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-09-04 13:32:39,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:39,353 INFO L225 Difference]: With dead ends: 1269 [2020-09-04 13:32:39,353 INFO L226 Difference]: Without dead ends: 858 [2020-09-04 13:32:39,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:32:39,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-09-04 13:32:39,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 834. [2020-09-04 13:32:39,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-09-04 13:32:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1168 transitions. [2020-09-04 13:32:39,418 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1168 transitions. Word has length 132 [2020-09-04 13:32:39,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:39,419 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1168 transitions. [2020-09-04 13:32:39,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:32:39,419 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1168 transitions. [2020-09-04 13:32:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-04 13:32:39,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:39,427 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:39,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:32:39,427 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:39,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:39,428 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-09-04 13:32:39,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:39,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65365478] [2020-09-04 13:32:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:39,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:39,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:32:39,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65365478] [2020-09-04 13:32:39,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160322706] [2020-09-04 13:32:39,928 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 13:32:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:40,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:32:40,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:32:40,187 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:32:40,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:32:40,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-09-04 13:32:40,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688554084] [2020-09-04 13:32:40,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:32:40,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:40,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:32:40,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:32:40,190 INFO L87 Difference]: Start difference. First operand 834 states and 1168 transitions. Second operand 3 states. [2020-09-04 13:32:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:40,851 INFO L93 Difference]: Finished difference Result 2210 states and 3124 transitions. [2020-09-04 13:32:40,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:32:40,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-09-04 13:32:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:40,873 INFO L225 Difference]: With dead ends: 2210 [2020-09-04 13:32:40,874 INFO L226 Difference]: Without dead ends: 1382 [2020-09-04 13:32:40,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:32:40,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2020-09-04 13:32:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2020-09-04 13:32:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1380 states. [2020-09-04 13:32:40,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1743 transitions. [2020-09-04 13:32:40,954 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1743 transitions. Word has length 133 [2020-09-04 13:32:40,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:40,955 INFO L479 AbstractCegarLoop]: Abstraction has 1380 states and 1743 transitions. [2020-09-04 13:32:40,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:32:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1743 transitions. [2020-09-04 13:32:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 13:32:40,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:40,963 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:41,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:32:41,178 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:41,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1533113042, now seen corresponding path program 1 times [2020-09-04 13:32:41,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:41,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123702865] [2020-09-04 13:32:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:41,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:41,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:41,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:32:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:41,434 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:32:41,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123702865] [2020-09-04 13:32:41,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829591596] [2020-09-04 13:32:41,435 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 13:32:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:41,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:32:41,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:32:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:32:41,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:32:41,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-09-04 13:32:41,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165630364] [2020-09-04 13:32:41,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:32:41,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:41,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:32:41,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:32:41,650 INFO L87 Difference]: Start difference. First operand 1380 states and 1743 transitions. Second operand 10 states. [2020-09-04 13:32:45,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:45,545 INFO L93 Difference]: Finished difference Result 4681 states and 6565 transitions. [2020-09-04 13:32:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 13:32:45,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-09-04 13:32:45,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:45,568 INFO L225 Difference]: With dead ends: 4681 [2020-09-04 13:32:45,569 INFO L226 Difference]: Without dead ends: 3307 [2020-09-04 13:32:45,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-09-04 13:32:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2020-09-04 13:32:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3116. [2020-09-04 13:32:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3116 states. [2020-09-04 13:32:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 4202 transitions. [2020-09-04 13:32:45,698 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 4202 transitions. Word has length 153 [2020-09-04 13:32:45,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:45,698 INFO L479 AbstractCegarLoop]: Abstraction has 3116 states and 4202 transitions. [2020-09-04 13:32:45,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:32:45,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 4202 transitions. [2020-09-04 13:32:45,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-04 13:32:45,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:45,713 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:45,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:32:45,927 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:45,928 INFO L82 PathProgramCache]: Analyzing trace with hash 248069194, now seen corresponding path program 1 times [2020-09-04 13:32:45,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:45,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899162356] [2020-09-04 13:32:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:46,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:46,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:32:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-04 13:32:46,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899162356] [2020-09-04 13:32:46,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255514849] [2020-09-04 13:32:46,210 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 13:32:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:46,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:32:46,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:32:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-04 13:32:46,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:32:46,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-09-04 13:32:46,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192063715] [2020-09-04 13:32:46,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:32:46,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:46,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:32:46,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:32:46,435 INFO L87 Difference]: Start difference. First operand 3116 states and 4202 transitions. Second operand 3 states. [2020-09-04 13:32:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:47,077 INFO L93 Difference]: Finished difference Result 7185 states and 9746 transitions. [2020-09-04 13:32:47,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:32:47,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-09-04 13:32:47,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:47,102 INFO L225 Difference]: With dead ends: 7185 [2020-09-04 13:32:47,102 INFO L226 Difference]: Without dead ends: 4079 [2020-09-04 13:32:47,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:32:47,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4079 states. [2020-09-04 13:32:47,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4079 to 3527. [2020-09-04 13:32:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3527 states. [2020-09-04 13:32:47,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 4740 transitions. [2020-09-04 13:32:47,234 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 4740 transitions. Word has length 157 [2020-09-04 13:32:47,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:47,235 INFO L479 AbstractCegarLoop]: Abstraction has 3527 states and 4740 transitions. [2020-09-04 13:32:47,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:32:47,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 4740 transitions. [2020-09-04 13:32:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-04 13:32:47,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:47,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:47,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:32:47,465 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:47,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1408349661, now seen corresponding path program 1 times [2020-09-04 13:32:47,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:47,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401197056] [2020-09-04 13:32:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:47,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:47,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:47,684 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:32:47,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401197056] [2020-09-04 13:32:47,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137788774] [2020-09-04 13:32:47,685 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 13:32:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:47,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:32:47,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:32:47,944 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:32:47,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:32:47,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-09-04 13:32:47,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420006645] [2020-09-04 13:32:47,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:32:47,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:47,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:32:47,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:32:47,947 INFO L87 Difference]: Start difference. First operand 3527 states and 4740 transitions. Second operand 3 states. [2020-09-04 13:32:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:48,786 INFO L93 Difference]: Finished difference Result 6226 states and 8383 transitions. [2020-09-04 13:32:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:32:48,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-09-04 13:32:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:48,815 INFO L225 Difference]: With dead ends: 6226 [2020-09-04 13:32:48,815 INFO L226 Difference]: Without dead ends: 3527 [2020-09-04 13:32:48,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:32:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2020-09-04 13:32:48,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 3527. [2020-09-04 13:32:48,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3527 states. [2020-09-04 13:32:49,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 4642 transitions. [2020-09-04 13:32:49,006 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 4642 transitions. Word has length 156 [2020-09-04 13:32:49,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:49,007 INFO L479 AbstractCegarLoop]: Abstraction has 3527 states and 4642 transitions. [2020-09-04 13:32:49,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:32:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 4642 transitions. [2020-09-04 13:32:49,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-04 13:32:49,027 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:49,028 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:49,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:32:49,241 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:49,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:49,242 INFO L82 PathProgramCache]: Analyzing trace with hash -271733422, now seen corresponding path program 1 times [2020-09-04 13:32:49,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:49,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436849384] [2020-09-04 13:32:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:49,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:49,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:49,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:32:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:49,563 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:32:49,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436849384] [2020-09-04 13:32:49,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315004818] [2020-09-04 13:32:49,564 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 13:32:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:49,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:32:49,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:32:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-04 13:32:49,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:32:49,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:32:49,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256400277] [2020-09-04 13:32:49,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:32:49,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:49,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:32:49,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:32:49,764 INFO L87 Difference]: Start difference. First operand 3527 states and 4642 transitions. Second operand 3 states. [2020-09-04 13:32:50,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:50,521 INFO L93 Difference]: Finished difference Result 8730 states and 11725 transitions. [2020-09-04 13:32:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:32:50,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-09-04 13:32:50,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:50,522 INFO L225 Difference]: With dead ends: 8730 [2020-09-04 13:32:50,522 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:32:50,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:32:50,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:32:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:32:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:32:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:32:50,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2020-09-04 13:32:50,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:50,548 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:32:50,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:32:50,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:32:50,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:32:50,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-09-04 13:32:50,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:32:52,806 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 53 [2020-09-04 13:32:53,077 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 53 [2020-09-04 13:32:54,306 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 158 DAG size of output: 58 [2020-09-04 13:32:54,622 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-09-04 13:32:54,887 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2020-09-04 13:32:54,892 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:32:54,893 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-09-04 13:32:54,893 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:32:54,893 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-04 13:32:54,893 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-04 13:32:54,893 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,893 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,894 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,894 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,894 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,894 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,894 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-04 13:32:54,894 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-04 13:32:54,894 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-04 13:32:54,895 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,896 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,896 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,896 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,896 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,896 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,896 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-04 13:32:54,896 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-04 13:32:54,897 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-04 13:32:54,897 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-04 13:32:54,897 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-04 13:32:54,897 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-04 13:32:54,897 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-04 13:32:54,897 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-04 13:32:54,897 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-04 13:32:54,898 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-04 13:32:54,898 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-04 13:32:54,898 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-09-04 13:32:54,898 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-04 13:32:54,898 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-04 13:32:54,898 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-04 13:32:54,899 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-04 13:32:54,899 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,899 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,899 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,899 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,899 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,899 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-04 13:32:54,900 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-04 13:32:54,901 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-04 13:32:54,902 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,903 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-04 13:32:54,904 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,905 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-04 13:32:54,906 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,907 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-04 13:32:54,908 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-04 13:32:54,909 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-04 13:32:54,910 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-04 13:32:54,910 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-04 13:32:54,910 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-04 13:32:54,910 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-04 13:32:54,910 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-04 13:32:54,910 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-04 13:32:54,911 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= ~a7~0 |old(~a7~0)|)) (.cse11 (= ~a21~0 |old(~a21~0)|)) (.cse12 (= ~a20~0 |old(~a20~0)|)) (.cse13 (= ~a8~0 |old(~a8~0)|))) (let ((.cse3 (not (<= |old(~a16~0)| 5))) (.cse1 (not (<= 15 |old(~a8~0)|))) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse5 (not (<= |old(~a8~0)| 13))) (.cse2 (and .cse9 .cse10 .cse11 .cse12 (= ~a16~0 |old(~a16~0)|) .cse13)) (.cse7 (not (<= |old(~a17~0)| 0))) (.cse4 (and .cse9 .cse10 .cse11 .cse12 .cse13 (= ~a16~0 4))) (.cse8 (not (<= |old(~a7~0)| 0))) (.cse6 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 (= |old(~a7~0)| 1)) (or .cse0 .cse3 .cse1 .cse2) (or .cse4 .cse5 .cse6) (or .cse0 .cse5 .cse2 .cse7) (or .cse0 .cse3 .cse2 .cse7) (or .cse0 .cse8 .cse3 .cse2) (or .cse0 .cse3 .cse5 .cse2) (or .cse4 .cse1 .cse6) (or .cse0 .cse8 .cse5 .cse2) (or .cse4 .cse7 .cse6) (or .cse4 .cse8 .cse6)))) [2020-09-04 13:32:54,911 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-04 13:32:54,911 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,911 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,911 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,911 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,911 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-04 13:32:54,911 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-04 13:32:54,912 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,913 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-04 13:32:54,914 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-04 13:32:54,915 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-04 13:32:54,916 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-04 13:32:54,917 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:32:54,918 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= ~a7~0 0) (<= 5 ~a16~0) (<= 15 ~a8~0)) [2020-09-04 13:32:54,918 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:32:54,918 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:32:54,918 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-09-04 13:32:54,918 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-04 13:32:54,918 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (<= ~a8~0 13)) (.cse6 (<= ~a7~0 0)) (.cse0 (<= ~a17~0 0)) (.cse4 (= ~a16~0 4)) (.cse3 (<= ~a16~0 5)) (.cse1 (<= 5 ~a16~0)) (.cse5 (<= 15 ~a8~0))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (and .cse3 .cse0 .cse1) (and .cse3 .cse1 .cse2) (and .cse4 .cse2) (and (not (= ~a7~0 1)) .cse1 .cse5) (and .cse4 .cse5) (and .cse6 .cse4) (and .cse6 .cse1 .cse2) (and .cse3 .cse6 .cse1) (and .cse0 .cse4) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse1 .cse5) (not (<= 15 |old(~a8~0)|)))) [2020-09-04 13:32:54,918 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-04 13:32:54,919 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-04 13:32:54,919 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (<= ~a8~0 13)) (.cse6 (<= ~a7~0 0)) (.cse0 (<= ~a17~0 0)) (.cse4 (= ~a16~0 4)) (.cse3 (<= ~a16~0 5)) (.cse1 (<= 5 ~a16~0)) (.cse5 (<= 15 ~a8~0))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (and .cse3 .cse0 .cse1) (and .cse3 .cse1 .cse2) (and .cse4 .cse2) (and (not (= ~a7~0 1)) .cse1 .cse5) (and .cse4 .cse5) (and .cse6 .cse4) (and .cse6 .cse1 .cse2) (and .cse3 .cse6 .cse1) (and .cse0 .cse4) (not (<= |old(~a16~0)| 5)) (and .cse3 .cse1 .cse5) (not (<= 15 |old(~a8~0)|)))) [2020-09-04 13:32:54,919 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-04 13:32:54,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:32:54 BoogieIcfgContainer [2020-09-04 13:32:54,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:32:54,946 INFO L168 Benchmark]: Toolchain (without parser) took 23037.59 ms. Allocated memory was 143.7 MB in the beginning and 516.9 MB in the end (delta: 373.3 MB). Free memory was 102.7 MB in the beginning and 222.2 MB in the end (delta: -119.4 MB). Peak memory consumption was 343.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:54,947 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 143.7 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 13:32:54,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 839.09 ms. Allocated memory was 143.7 MB in the beginning and 207.1 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 173.0 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:54,949 INFO L168 Benchmark]: Boogie Preprocessor took 129.15 ms. Allocated memory is still 207.1 MB. Free memory was 173.0 MB in the beginning and 168.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:54,950 INFO L168 Benchmark]: RCFGBuilder took 1375.10 ms. Allocated memory was 207.1 MB in the beginning and 237.0 MB in the end (delta: 29.9 MB). Free memory was 168.2 MB in the beginning and 176.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:54,951 INFO L168 Benchmark]: TraceAbstraction took 20687.25 ms. Allocated memory was 237.0 MB in the beginning and 516.9 MB in the end (delta: 280.0 MB). Free memory was 176.6 MB in the beginning and 222.2 MB in the end (delta: -45.5 MB). Peak memory consumption was 324.5 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:54,955 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 143.7 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 839.09 ms. Allocated memory was 143.7 MB in the beginning and 207.1 MB in the end (delta: 63.4 MB). Free memory was 102.5 MB in the beginning and 173.0 MB in the end (delta: -70.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.15 ms. Allocated memory is still 207.1 MB. Free memory was 173.0 MB in the beginning and 168.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1375.10 ms. Allocated memory was 207.1 MB in the beginning and 237.0 MB in the end (delta: 29.9 MB). Free memory was 168.2 MB in the beginning and 176.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20687.25 ms. Allocated memory was 237.0 MB in the beginning and 516.9 MB in the end (delta: 280.0 MB). Free memory was 176.6 MB in the beginning and 222.2 MB in the end (delta: -45.5 MB). Peak memory consumption was 324.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((!(5 <= \old(a16)) || ((a17 <= 0 && 5 <= a16) && a8 <= 13)) || !(\old(a7) <= 0)) || ((a16 <= 5 && a17 <= 0) && 5 <= a16)) || ((a16 <= 5 && 5 <= a16) && a8 <= 13)) || (a16 == 4 && a8 <= 13)) || ((!(a7 == 1) && 5 <= a16) && 15 <= a8)) || (a16 == 4 && 15 <= a8)) || (a7 <= 0 && a16 == 4)) || ((a7 <= 0 && 5 <= a16) && a8 <= 13)) || ((a16 <= 5 && a7 <= 0) && 5 <= a16)) || (a17 <= 0 && a16 == 4)) || !(\old(a16) <= 5)) || ((a16 <= 5 && 5 <= a16) && 15 <= a8)) || !(15 <= \old(a8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.4s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 597 SDtfs, 2269 SDslu, 208 SDs, 0 SdLazy, 5603 SolverSat, 1001 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 860 GetRequests, 805 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3527occurred 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: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 775 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 190 PreInvPairs, 308 NumberOfFragments, 676 HoareAnnotationTreeSize, 190 FomulaSimplifications, 26664 FormulaSimplificationTreeSizeReduction, 2.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3378 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1808 NumberOfCodeBlocks, 1808 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1796 ConstructedInterpolants, 0 QuantifiedInterpolants, 963582 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2114 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 348/367 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...