/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:29:14,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:29:14,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:29:14,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:29:14,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:29:14,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:29:14,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:29:14,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:29:14,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:29:14,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:29:14,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:29:14,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:29:14,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:29:14,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:29:14,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:29:14,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:29:14,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:29:14,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:29:14,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:29:14,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:29:14,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:29:14,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:29:14,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:29:14,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:29:14,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:29:14,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:29:14,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:29:14,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:29:14,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:29:14,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:29:14,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:29:14,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:29:14,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:29:14,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:29:14,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:29:14,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:29:14,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:29:14,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:29:14,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:29:14,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:29:14,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:29:14,381 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 [2020-09-24 18:29:14,416 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:29:14,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:29:14,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:29:14,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:29:14,418 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:29:14,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:29:14,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:29:14,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:29:14,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:29:14,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:29:14,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:29:14,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:29:14,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:29:14,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:29:14,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:29:14,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:29:14,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:29:14,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:29:14,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:29:14,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:29:14,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:29:14,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:29:14,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:29:14,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:29:14,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:29:14,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:29:14,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:29:14,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:29:14,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:29:14,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:29:14,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:29:14,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:29:14,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:29:14,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:29:14,951 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:29:14,952 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2020-09-24 18:29:15,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6fd79a84/9f34dbde67364828ae999043eb6845d2/FLAGdfaa3a26c [2020-09-24 18:29:15,632 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:29:15,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/lu.cmp.c [2020-09-24 18:29:15,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6fd79a84/9f34dbde67364828ae999043eb6845d2/FLAGdfaa3a26c [2020-09-24 18:29:15,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6fd79a84/9f34dbde67364828ae999043eb6845d2 [2020-09-24 18:29:15,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:29:15,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:29:15,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:29:15,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:29:15,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:29:15,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:29:15" (1/1) ... [2020-09-24 18:29:15,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693e2903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:15, skipping insertion in model container [2020-09-24 18:29:15,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:29:15" (1/1) ... [2020-09-24 18:29:15,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:29:16,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:29:16,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:29:16,306 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:29:16,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:29:16,468 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:29:16,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16 WrapperNode [2020-09-24 18:29:16,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:29:16,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:29:16,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:29:16,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:29:16,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (1/1) ... [2020-09-24 18:29:16,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (1/1) ... [2020-09-24 18:29:16,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (1/1) ... [2020-09-24 18:29:16,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (1/1) ... [2020-09-24 18:29:16,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (1/1) ... [2020-09-24 18:29:16,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (1/1) ... [2020-09-24 18:29:16,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (1/1) ... [2020-09-24 18:29:16,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:29:16,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:29:16,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:29:16,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:29:16,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (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 [2020-09-24 18:29:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:29:16,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:29:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 18:29:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2020-09-24 18:29:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:29:16,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2020-09-24 18:29:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:29:16,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:29:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2020-09-24 18:29:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2020-09-24 18:29:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:29:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-24 18:29:16,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-24 18:29:16,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:29:16,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:29:16,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:29:16,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:29:17,277 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:29:17,278 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-09-24 18:29:17,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:29:17 BoogieIcfgContainer [2020-09-24 18:29:17,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:29:17,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:29:17,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:29:17,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:29:17,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:29:15" (1/3) ... [2020-09-24 18:29:17,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f176d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:29:17, skipping insertion in model container [2020-09-24 18:29:17,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:29:16" (2/3) ... [2020-09-24 18:29:17,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f176d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:29:17, skipping insertion in model container [2020-09-24 18:29:17,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:29:17" (3/3) ... [2020-09-24 18:29:17,301 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2020-09-24 18:29:17,310 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:29:17,321 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:29:17,340 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:29:17,368 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:29:17,368 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:29:17,368 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:29:17,368 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:29:17,369 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:29:17,369 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:29:17,369 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:29:17,369 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:29:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-09-24 18:29:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:29:17,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:17,405 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] [2020-09-24 18:29:17,405 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:17,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:17,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1445504148, now seen corresponding path program 1 times [2020-09-24 18:29:17,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:17,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672440793] [2020-09-24 18:29:17,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:17,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:18,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:18,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:18,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:18,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:18,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-24 18:29:18,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:29:18,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1170 [2020-09-24 18:29:18,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:18,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:29:18,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:29:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 18:29:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:29:18,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:18,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:18,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:18,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:29:18,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:18,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 18:29:18,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:18,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:29:18,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672440793] [2020-09-24 18:29:18,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:18,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:29:18,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733347055] [2020-09-24 18:29:18,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:29:18,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:18,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:29:18,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:29:18,958 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 5 states. [2020-09-24 18:29:19,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:19,733 INFO L93 Difference]: Finished difference Result 367 states and 432 transitions. [2020-09-24 18:29:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:29:19,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-24 18:29:19,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:19,752 INFO L225 Difference]: With dead ends: 367 [2020-09-24 18:29:19,752 INFO L226 Difference]: Without dead ends: 64 [2020-09-24 18:29:19,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:29:19,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-24 18:29:19,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 49. [2020-09-24 18:29:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-24 18:29:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-09-24 18:29:19,837 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 30 [2020-09-24 18:29:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:19,839 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-09-24 18:29:19,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:29:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-09-24 18:29:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-24 18:29:19,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:19,843 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] [2020-09-24 18:29:19,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:29:19,843 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:19,844 INFO L82 PathProgramCache]: Analyzing trace with hash -905808642, now seen corresponding path program 1 times [2020-09-24 18:29:19,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:19,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740157236] [2020-09-24 18:29:19,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:19,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:19,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:20,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:20,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:20,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:21,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:21,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 18:29:21,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:29:21,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-09-24 18:29:21,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:21,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:29:21,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 18:29:21,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:29:21,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:29:21,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:21,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:21,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:21,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:29:21,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:21,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:29:21,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:21,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:21,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:29:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:29:21,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740157236] [2020-09-24 18:29:21,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:21,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:29:21,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344038710] [2020-09-24 18:29:21,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:29:21,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:21,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:29:21,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:29:21,192 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 5 states. [2020-09-24 18:29:21,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:21,450 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2020-09-24 18:29:21,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:29:21,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-09-24 18:29:21,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:21,455 INFO L225 Difference]: With dead ends: 108 [2020-09-24 18:29:21,455 INFO L226 Difference]: Without dead ends: 81 [2020-09-24 18:29:21,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:29:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-09-24 18:29:21,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2020-09-24 18:29:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 18:29:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-09-24 18:29:21,472 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 39 [2020-09-24 18:29:21,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:21,473 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-09-24 18:29:21,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:29:21,473 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-09-24 18:29:21,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 18:29:21,474 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:21,475 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] [2020-09-24 18:29:21,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:29:21,475 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:21,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:21,476 INFO L82 PathProgramCache]: Analyzing trace with hash -361483259, now seen corresponding path program 1 times [2020-09-24 18:29:21,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:21,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349241283] [2020-09-24 18:29:21,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:21,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:21,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:21,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:21,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:22,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:22,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:23,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:23,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 18:29:23,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:29:23,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1829 [2020-09-24 18:29:23,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:29:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 18:29:23,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:29:23,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:23,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:23,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:23,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:23,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:29:23,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:23,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:29:23,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:23,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 18:29:23,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349241283] [2020-09-24 18:29:23,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:29:23,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:29:23,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919989302] [2020-09-24 18:29:23,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:29:23,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:23,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:29:23,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:29:23,451 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 6 states. [2020-09-24 18:29:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:23,811 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2020-09-24 18:29:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 18:29:23,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-09-24 18:29:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:23,813 INFO L225 Difference]: With dead ends: 77 [2020-09-24 18:29:23,813 INFO L226 Difference]: Without dead ends: 75 [2020-09-24 18:29:23,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:29:23,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-09-24 18:29:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2020-09-24 18:29:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 18:29:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-09-24 18:29:23,825 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 42 [2020-09-24 18:29:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:23,826 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-09-24 18:29:23,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:29:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-09-24 18:29:23,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 18:29:23,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:23,829 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 18:29:23,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:29:23,829 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:23,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1960696442, now seen corresponding path program 1 times [2020-09-24 18:29:23,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:23,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998390060] [2020-09-24 18:29:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:23,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:23,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:24,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:24,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:25,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:25,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:25,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:25,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:26,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:26,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:26,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:26,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:27,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:27,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:28,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:28,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 18:29:28,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-24 18:29:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 18:29:28,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:29:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:29:28,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 18:29:28,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:29:28,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:28,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:29,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:29,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:29:29,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:29,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 18:29:29,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:29,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:29,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:29,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:29,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-24 18:29:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:29,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:29,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:29,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:29:29,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 18:29:29,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:29:29,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 18:29:29,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998390060] [2020-09-24 18:29:29,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:29:29,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 18:29:29,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070889060] [2020-09-24 18:29:29,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:29:29,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:29,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:29:29,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:29:29,062 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 7 states. [2020-09-24 18:29:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:29,463 INFO L93 Difference]: Finished difference Result 146 states and 157 transitions. [2020-09-24 18:29:29,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:29:29,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-24 18:29:29,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:29,472 INFO L225 Difference]: With dead ends: 146 [2020-09-24 18:29:29,474 INFO L226 Difference]: Without dead ends: 114 [2020-09-24 18:29:29,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-09-24 18:29:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-24 18:29:29,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-09-24 18:29:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 18:29:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2020-09-24 18:29:29,505 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 64 [2020-09-24 18:29:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:29,506 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2020-09-24 18:29:29,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:29:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2020-09-24 18:29:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-24 18:29:29,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:29:29,513 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:29:29,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:29:29,514 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:29:29,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:29:29,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1491522468, now seen corresponding path program 2 times [2020-09-24 18:29:29,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:29:29,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263267180] [2020-09-24 18:29:29,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:29:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:29,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:29,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:29,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:30,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:32,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:32,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:32,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:32,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:34,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:34,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-24 18:29:34,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 18:29:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 18:29:34,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:29:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 18:29:34,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 18:29:34,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:34,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:29:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:34,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:34,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:34,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 18:29:34,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:34,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 18:29:34,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:29:34,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:34,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:29:34,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:34,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-24 18:29:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:29:34,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:29:34,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:29:34,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:29:34,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:29:34,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:29:34,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:29:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:29:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:29:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:29:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:29:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 18:29:34,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263267180] [2020-09-24 18:29:34,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 18:29:34,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 18:29:34,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898104881] [2020-09-24 18:29:34,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 18:29:34,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:29:34,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 18:29:34,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:29:34,800 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 7 states. [2020-09-24 18:29:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:29:35,117 INFO L93 Difference]: Finished difference Result 94 states and 99 transitions. [2020-09-24 18:29:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:29:35,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-09-24 18:29:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:29:35,118 INFO L225 Difference]: With dead ends: 94 [2020-09-24 18:29:35,118 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:29:35,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-09-24 18:29:35,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:29:35,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:29:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:29:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:29:35,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 82 [2020-09-24 18:29:35,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:29:35,122 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:29:35,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 18:29:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:29:35,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:29:35,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:29:35,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:29:35,428 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-24 18:29:35,429 INFO L271 CegarLoopResult]: At program point L118-1(line 118) the Hoare annotation is: true [2020-09-24 18:29:35,429 INFO L268 CegarLoopResult]: For program point L118-2(line 118) no Hoare annotation was computed. [2020-09-24 18:29:35,429 INFO L268 CegarLoopResult]: For program point L118-3(line 118) no Hoare annotation was computed. [2020-09-24 18:29:35,429 INFO L268 CegarLoopResult]: For program point L118-4(line 118) no Hoare annotation was computed. [2020-09-24 18:29:35,430 INFO L268 CegarLoopResult]: For program point L118-5(line 118) no Hoare annotation was computed. [2020-09-24 18:29:35,430 INFO L268 CegarLoopResult]: For program point L118-6(line 118) no Hoare annotation was computed. [2020-09-24 18:29:35,430 INFO L268 CegarLoopResult]: For program point L118-7(line 118) no Hoare annotation was computed. [2020-09-24 18:29:35,430 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-09-24 18:29:35,430 INFO L268 CegarLoopResult]: For program point L135-1(line 135) no Hoare annotation was computed. [2020-09-24 18:29:35,430 INFO L268 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-09-24 18:29:35,430 INFO L268 CegarLoopResult]: For program point L119-3(lines 119 126) no Hoare annotation was computed. [2020-09-24 18:29:35,431 INFO L268 CegarLoopResult]: For program point L119-4(line 119) no Hoare annotation was computed. [2020-09-24 18:29:35,431 INFO L268 CegarLoopResult]: For program point L119-5(line 119) no Hoare annotation was computed. [2020-09-24 18:29:35,431 INFO L271 CegarLoopResult]: At program point L119-6(lines 119 126) the Hoare annotation is: true [2020-09-24 18:29:35,431 INFO L268 CegarLoopResult]: For program point L119-7(lines 119 126) no Hoare annotation was computed. [2020-09-24 18:29:35,432 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-24 18:29:35,433 INFO L268 CegarLoopResult]: For program point L136-3(line 136) no Hoare annotation was computed. [2020-09-24 18:29:35,433 INFO L268 CegarLoopResult]: For program point L136-4(line 136) no Hoare annotation was computed. [2020-09-24 18:29:35,433 INFO L271 CegarLoopResult]: At program point L136-5(lines 136 142) the Hoare annotation is: true [2020-09-24 18:29:35,433 INFO L268 CegarLoopResult]: For program point L136-6(lines 136 142) no Hoare annotation was computed. [2020-09-24 18:29:35,433 INFO L268 CegarLoopResult]: For program point ludcmpEXIT(lines 109 153) no Hoare annotation was computed. [2020-09-24 18:29:35,433 INFO L264 CegarLoopResult]: At program point ludcmpENTRY(lines 109 153) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-24 18:29:35,433 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-24 18:29:35,434 INFO L268 CegarLoopResult]: For program point L121-1(line 121) no Hoare annotation was computed. [2020-09-24 18:29:35,434 INFO L268 CegarLoopResult]: For program point L121-2(line 121) no Hoare annotation was computed. [2020-09-24 18:29:35,434 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-24 18:29:35,434 INFO L268 CegarLoopResult]: For program point L138-1(line 138) no Hoare annotation was computed. [2020-09-24 18:29:35,434 INFO L268 CegarLoopResult]: For program point L138-2(line 138) no Hoare annotation was computed. [2020-09-24 18:29:35,434 INFO L268 CegarLoopResult]: For program point L122(lines 122 124) no Hoare annotation was computed. [2020-09-24 18:29:35,434 INFO L268 CegarLoopResult]: For program point L122-1(lines 122 124) no Hoare annotation was computed. [2020-09-24 18:29:35,435 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-24 18:29:35,435 INFO L268 CegarLoopResult]: For program point L139-3(lines 139 140) no Hoare annotation was computed. [2020-09-24 18:29:35,435 INFO L268 CegarLoopResult]: For program point L139-4(line 139) no Hoare annotation was computed. [2020-09-24 18:29:35,435 INFO L268 CegarLoopResult]: For program point L139-5(line 139) no Hoare annotation was computed. [2020-09-24 18:29:35,435 INFO L271 CegarLoopResult]: At program point L139-6(lines 139 140) the Hoare annotation is: true [2020-09-24 18:29:35,435 INFO L268 CegarLoopResult]: For program point L139-7(lines 139 140) no Hoare annotation was computed. [2020-09-24 18:29:35,435 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-09-24 18:29:35,436 INFO L268 CegarLoopResult]: For program point L123-3(lines 123 124) no Hoare annotation was computed. [2020-09-24 18:29:35,436 INFO L268 CegarLoopResult]: For program point L123-4(line 123) no Hoare annotation was computed. [2020-09-24 18:29:35,436 INFO L268 CegarLoopResult]: For program point L123-5(line 123) no Hoare annotation was computed. [2020-09-24 18:29:35,436 INFO L271 CegarLoopResult]: At program point L123-6(lines 123 124) the Hoare annotation is: true [2020-09-24 18:29:35,436 INFO L268 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-09-24 18:29:35,437 INFO L268 CegarLoopResult]: For program point L140-1(line 140) no Hoare annotation was computed. [2020-09-24 18:29:35,437 INFO L268 CegarLoopResult]: For program point L140-2(line 140) no Hoare annotation was computed. [2020-09-24 18:29:35,437 INFO L268 CegarLoopResult]: For program point L140-3(line 140) no Hoare annotation was computed. [2020-09-24 18:29:35,437 INFO L268 CegarLoopResult]: For program point L140-4(line 140) no Hoare annotation was computed. [2020-09-24 18:29:35,437 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-24 18:29:35,437 INFO L268 CegarLoopResult]: For program point L124-1(line 124) no Hoare annotation was computed. [2020-09-24 18:29:35,437 INFO L268 CegarLoopResult]: For program point L124-2(line 124) no Hoare annotation was computed. [2020-09-24 18:29:35,438 INFO L268 CegarLoopResult]: For program point L124-3(line 124) no Hoare annotation was computed. [2020-09-24 18:29:35,438 INFO L268 CegarLoopResult]: For program point L124-4(line 124) no Hoare annotation was computed. [2020-09-24 18:29:35,438 INFO L268 CegarLoopResult]: For program point L141(lines 136 142) no Hoare annotation was computed. [2020-09-24 18:29:35,438 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-09-24 18:29:35,438 INFO L268 CegarLoopResult]: For program point L125-1(line 125) no Hoare annotation was computed. [2020-09-24 18:29:35,438 INFO L268 CegarLoopResult]: For program point L109(lines 109 153) no Hoare annotation was computed. [2020-09-24 18:29:35,438 INFO L268 CegarLoopResult]: For program point L109-1(lines 109 153) no Hoare annotation was computed. [2020-09-24 18:29:35,439 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-09-24 18:29:35,439 INFO L268 CegarLoopResult]: For program point L143-1(line 143) no Hoare annotation was computed. [2020-09-24 18:29:35,439 INFO L268 CegarLoopResult]: For program point L143-2(line 143) no Hoare annotation was computed. [2020-09-24 18:29:35,439 INFO L268 CegarLoopResult]: For program point L143-3(line 143) no Hoare annotation was computed. [2020-09-24 18:29:35,439 INFO L268 CegarLoopResult]: For program point L127-2(line 127) no Hoare annotation was computed. [2020-09-24 18:29:35,439 INFO L268 CegarLoopResult]: For program point L127-3(line 127) no Hoare annotation was computed. [2020-09-24 18:29:35,440 INFO L271 CegarLoopResult]: At program point L127-4(lines 127 133) the Hoare annotation is: true [2020-09-24 18:29:35,440 INFO L268 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-09-24 18:29:35,440 INFO L268 CegarLoopResult]: For program point L144-3(lines 144 150) no Hoare annotation was computed. [2020-09-24 18:29:35,441 INFO L268 CegarLoopResult]: For program point L144-4(line 144) no Hoare annotation was computed. [2020-09-24 18:29:35,441 INFO L268 CegarLoopResult]: For program point L144-5(line 144) no Hoare annotation was computed. [2020-09-24 18:29:35,441 INFO L271 CegarLoopResult]: At program point L144-6(lines 144 150) the Hoare annotation is: true [2020-09-24 18:29:35,441 INFO L268 CegarLoopResult]: For program point L144-7(lines 144 150) no Hoare annotation was computed. [2020-09-24 18:29:35,441 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-24 18:29:35,441 INFO L268 CegarLoopResult]: For program point L112-1(line 112) no Hoare annotation was computed. [2020-09-24 18:29:35,442 INFO L268 CegarLoopResult]: For program point L112-2(line 112) no Hoare annotation was computed. [2020-09-24 18:29:35,442 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-09-24 18:29:35,442 INFO L268 CegarLoopResult]: For program point L129-1(line 129) no Hoare annotation was computed. [2020-09-24 18:29:35,442 INFO L268 CegarLoopResult]: For program point L129-2(line 129) no Hoare annotation was computed. [2020-09-24 18:29:35,442 INFO L268 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-09-24 18:29:35,442 INFO L268 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,443 INFO L268 CegarLoopResult]: For program point L146-1(line 146) no Hoare annotation was computed. [2020-09-24 18:29:35,443 INFO L268 CegarLoopResult]: For program point L113-1(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,443 INFO L268 CegarLoopResult]: For program point L146-2(line 146) no Hoare annotation was computed. [2020-09-24 18:29:35,443 INFO L268 CegarLoopResult]: For program point L113-2(lines 110 153) no Hoare annotation was computed. [2020-09-24 18:29:35,444 INFO L268 CegarLoopResult]: For program point L113-3(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,444 INFO L268 CegarLoopResult]: For program point L113-4(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,444 INFO L268 CegarLoopResult]: For program point L113-5(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,444 INFO L268 CegarLoopResult]: For program point L113-6(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,445 INFO L268 CegarLoopResult]: For program point L113-7(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,445 INFO L268 CegarLoopResult]: For program point L113-8(line 113) no Hoare annotation was computed. [2020-09-24 18:29:35,445 INFO L268 CegarLoopResult]: For program point ludcmpFINAL(lines 109 153) no Hoare annotation was computed. [2020-09-24 18:29:35,445 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-24 18:29:35,445 INFO L268 CegarLoopResult]: For program point L130-3(lines 130 131) no Hoare annotation was computed. [2020-09-24 18:29:35,445 INFO L268 CegarLoopResult]: For program point L130-4(line 130) no Hoare annotation was computed. [2020-09-24 18:29:35,445 INFO L268 CegarLoopResult]: For program point L130-5(line 130) no Hoare annotation was computed. [2020-09-24 18:29:35,446 INFO L271 CegarLoopResult]: At program point L130-6(lines 130 131) the Hoare annotation is: true [2020-09-24 18:29:35,446 INFO L268 CegarLoopResult]: For program point L130-7(lines 130 131) no Hoare annotation was computed. [2020-09-24 18:29:35,446 INFO L268 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-09-24 18:29:35,446 INFO L268 CegarLoopResult]: For program point L147-3(lines 147 148) no Hoare annotation was computed. [2020-09-24 18:29:35,446 INFO L268 CegarLoopResult]: For program point L147-4(line 147) no Hoare annotation was computed. [2020-09-24 18:29:35,446 INFO L268 CegarLoopResult]: For program point L147-5(line 147) no Hoare annotation was computed. [2020-09-24 18:29:35,447 INFO L271 CegarLoopResult]: At program point L147-6(lines 147 148) the Hoare annotation is: true [2020-09-24 18:29:35,447 INFO L268 CegarLoopResult]: For program point L147-7(lines 147 148) no Hoare annotation was computed. [2020-09-24 18:29:35,447 INFO L268 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-09-24 18:29:35,447 INFO L268 CegarLoopResult]: For program point L131-1(line 131) no Hoare annotation was computed. [2020-09-24 18:29:35,447 INFO L268 CegarLoopResult]: For program point L131-2(line 131) no Hoare annotation was computed. [2020-09-24 18:29:35,448 INFO L268 CegarLoopResult]: For program point L131-3(line 131) no Hoare annotation was computed. [2020-09-24 18:29:35,448 INFO L268 CegarLoopResult]: For program point L131-4(line 131) no Hoare annotation was computed. [2020-09-24 18:29:35,448 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-24 18:29:35,448 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-24 18:29:35,448 INFO L268 CegarLoopResult]: For program point L148-1(line 148) no Hoare annotation was computed. [2020-09-24 18:29:35,449 INFO L268 CegarLoopResult]: For program point L148-2(line 148) no Hoare annotation was computed. [2020-09-24 18:29:35,449 INFO L268 CegarLoopResult]: For program point L148-3(line 148) no Hoare annotation was computed. [2020-09-24 18:29:35,449 INFO L268 CegarLoopResult]: For program point L148-4(line 148) no Hoare annotation was computed. [2020-09-24 18:29:35,449 INFO L268 CegarLoopResult]: For program point L132(lines 127 133) no Hoare annotation was computed. [2020-09-24 18:29:35,449 INFO L268 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-09-24 18:29:35,449 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-24 18:29:35,449 INFO L268 CegarLoopResult]: For program point L149-1(line 149) no Hoare annotation was computed. [2020-09-24 18:29:35,450 INFO L268 CegarLoopResult]: For program point L116-3(lines 116 134) no Hoare annotation was computed. [2020-09-24 18:29:35,450 INFO L268 CegarLoopResult]: For program point L116-4(line 116) no Hoare annotation was computed. [2020-09-24 18:29:35,450 INFO L268 CegarLoopResult]: For program point L116-5(line 116) no Hoare annotation was computed. [2020-09-24 18:29:35,450 INFO L271 CegarLoopResult]: At program point L116-6(lines 116 134) the Hoare annotation is: true [2020-09-24 18:29:35,450 INFO L268 CegarLoopResult]: For program point L116-7(lines 116 134) no Hoare annotation was computed. [2020-09-24 18:29:35,450 INFO L268 CegarLoopResult]: For program point L69-4(line 69) no Hoare annotation was computed. [2020-09-24 18:29:35,450 INFO L268 CegarLoopResult]: For program point L69-5(line 69) no Hoare annotation was computed. [2020-09-24 18:29:35,450 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 18:29:35,451 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 18:29:35,451 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:29:35,451 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#x~0.offset| |old(~#x~0.offset)|) (= |old(#memory_real)| |#memory_real|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 18:29:35,451 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-09-24 18:29:35,451 INFO L268 CegarLoopResult]: For program point L69-1(line 69) no Hoare annotation was computed. [2020-09-24 18:29:35,451 INFO L268 CegarLoopResult]: For program point L69-2(line 69) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point L69-3(line 69) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point L78(lines 78 79) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point L78-1(line 78) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point L78-3(lines 78 79) no Hoare annotation was computed. [2020-09-24 18:29:35,452 INFO L268 CegarLoopResult]: For program point fabsEXIT(lines 74 81) no Hoare annotation was computed. [2020-09-24 18:29:35,453 INFO L271 CegarLoopResult]: At program point fabsENTRY(lines 74 81) the Hoare annotation is: true [2020-09-24 18:29:35,453 INFO L268 CegarLoopResult]: For program point fabsFINAL(lines 74 81) no Hoare annotation was computed. [2020-09-24 18:29:35,453 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:29:35,453 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 18:29:35,453 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 18:29:35,453 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:29:35,453 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-24 18:29:35,454 INFO L268 CegarLoopResult]: For program point L97-1(line 97) no Hoare annotation was computed. [2020-09-24 18:29:35,454 INFO L268 CegarLoopResult]: For program point L97-2(line 97) no Hoare annotation was computed. [2020-09-24 18:29:35,454 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-09-24 18:29:35,454 INFO L268 CegarLoopResult]: For program point L97-4(line 97) no Hoare annotation was computed. [2020-09-24 18:29:35,454 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-09-24 18:29:35,454 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 83 107) no Hoare annotation was computed. [2020-09-24 18:29:35,454 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-24 18:29:35,455 INFO L268 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-09-24 18:29:35,455 INFO L268 CegarLoopResult]: For program point L98-1(line 98) no Hoare annotation was computed. [2020-09-24 18:29:35,455 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-24 18:29:35,455 INFO L268 CegarLoopResult]: For program point L94-3(lines 94 99) no Hoare annotation was computed. [2020-09-24 18:29:35,455 INFO L268 CegarLoopResult]: For program point L94-4(line 94) no Hoare annotation was computed. [2020-09-24 18:29:35,455 INFO L268 CegarLoopResult]: For program point L94-5(line 94) no Hoare annotation was computed. [2020-09-24 18:29:35,455 INFO L264 CegarLoopResult]: At program point L94-6(lines 94 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-24 18:29:35,456 INFO L264 CegarLoopResult]: At program point L94-7(lines 94 99) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-24 18:29:35,456 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-24 18:29:35,456 INFO L268 CegarLoopResult]: For program point L86-1(line 86) no Hoare annotation was computed. [2020-09-24 18:29:35,456 INFO L268 CegarLoopResult]: For program point L86-2(line 86) no Hoare annotation was computed. [2020-09-24 18:29:35,456 INFO L268 CegarLoopResult]: For program point L86-3(line 86) no Hoare annotation was computed. [2020-09-24 18:29:35,456 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-24 18:29:35,457 INFO L268 CegarLoopResult]: For program point L91-3(line 91) no Hoare annotation was computed. [2020-09-24 18:29:35,457 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-09-24 18:29:35,458 INFO L268 CegarLoopResult]: For program point L91-4(line 91) no Hoare annotation was computed. [2020-09-24 18:29:35,458 INFO L268 CegarLoopResult]: For program point L87-1(line 87) no Hoare annotation was computed. [2020-09-24 18:29:35,458 INFO L264 CegarLoopResult]: At program point L91-5(lines 91 102) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-09-24 18:29:35,458 INFO L264 CegarLoopResult]: At program point L91-6(lines 91 102) the Hoare annotation is: (<= 5 main_~n~0) [2020-09-24 18:29:35,458 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 83 107) no Hoare annotation was computed. [2020-09-24 18:29:35,458 INFO L268 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-09-24 18:29:35,459 INFO L268 CegarLoopResult]: For program point L104-1(line 104) no Hoare annotation was computed. [2020-09-24 18:29:35,459 INFO L268 CegarLoopResult]: For program point L104-2(line 104) no Hoare annotation was computed. [2020-09-24 18:29:35,459 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-24 18:29:35,459 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-24 18:29:35,459 INFO L268 CegarLoopResult]: For program point L96-1(lines 95 99) no Hoare annotation was computed. [2020-09-24 18:29:35,459 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 83 107) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-24 18:29:35,459 INFO L268 CegarLoopResult]: For program point L101(lines 91 102) no Hoare annotation was computed. [2020-09-24 18:29:35,460 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-24 18:29:35,460 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-24 18:29:35,460 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 18:29:35,460 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-24 18:29:35,460 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-24 18:29:35,460 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-24 18:29:35,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:29:35 BoogieIcfgContainer [2020-09-24 18:29:35,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:29:35,490 INFO L168 Benchmark]: Toolchain (without parser) took 19527.88 ms. Allocated memory was 147.3 MB in the beginning and 352.8 MB in the end (delta: 205.5 MB). Free memory was 104.0 MB in the beginning and 299.0 MB in the end (delta: -195.0 MB). Peak memory consumption was 214.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:35,491 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-24 18:29:35,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.34 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 103.4 MB in the beginning and 182.0 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:35,499 INFO L168 Benchmark]: Boogie Preprocessor took 72.67 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 179.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:35,500 INFO L168 Benchmark]: RCFGBuilder took 746.17 ms. Allocated memory is still 203.9 MB. Free memory was 179.6 MB in the beginning and 140.4 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:35,501 INFO L168 Benchmark]: TraceAbstraction took 18192.38 ms. Allocated memory was 203.9 MB in the beginning and 352.8 MB in the end (delta: 148.9 MB). Free memory was 140.4 MB in the beginning and 299.0 MB in the end (delta: -158.6 MB). Peak memory consumption was 194.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:29:35,515 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 504.34 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 103.4 MB in the beginning and 182.0 MB in the end (delta: -78.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.67 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 179.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 746.17 ms. Allocated memory is still 203.9 MB. Free memory was 179.6 MB in the beginning and 140.4 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18192.38 ms. Allocated memory was 203.9 MB in the beginning and 352.8 MB in the end (delta: 148.9 MB). Free memory was 140.4 MB in the beginning and 299.0 MB in the end (delta: -158.6 MB). Peak memory consumption was 194.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: n <= 5 && 5 <= n - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: (i <= 5 && n <= 5) && 5 <= n - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.7s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 342 SDtfs, 238 SDslu, 587 SDs, 0 SdLazy, 703 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 64 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 49 PreInvPairs, 81 NumberOfFragments, 98 HoareAnnotationTreeSize, 49 FomulaSimplifications, 496 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 122 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 42684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 34/91 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...