/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:37:14,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:37:14,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:37:14,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:37:14,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:37:14,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:37:14,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:37:14,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:37:14,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:37:14,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:37:14,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:37:14,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:37:14,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:37:14,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:37:14,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:37:14,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:37:14,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:37:14,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:37:14,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:37:14,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:37:14,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:37:14,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:37:14,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:37:14,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:37:14,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:37:14,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:37:14,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:37:14,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:37:14,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:37:14,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:37:14,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:37:14,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:37:14,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:37:14,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:37:14,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:37:14,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:37:14,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:37:14,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:37:14,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:37:14,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:37:14,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:37:14,445 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 21:37:14,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:37:14,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:37:14,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:37:14,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:37:14,475 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:37:14,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:37:14,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:37:14,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:37:14,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:37:14,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:37:14,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:37:14,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:37:14,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:37:14,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:37:14,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:37:14,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:37:14,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:37:14,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:37:14,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:37:14,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:37:14,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:37:14,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:37:14,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:37:14,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:37:14,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:37:14,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:37:14,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:37:14,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:37:14,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:37:14,482 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:37:14,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:37:14,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:37:14,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:37:14,995 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:37:14,997 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:37:14,998 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2020-09-24 21:37:15,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56b6bf40/5a33dab06be44bbd9b337fa0e21153ec/FLAGa14f31af6 [2020-09-24 21:37:15,623 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:37:15,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test05.c [2020-09-24 21:37:15,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56b6bf40/5a33dab06be44bbd9b337fa0e21153ec/FLAGa14f31af6 [2020-09-24 21:37:15,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b56b6bf40/5a33dab06be44bbd9b337fa0e21153ec [2020-09-24 21:37:15,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:37:15,982 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:37:15,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:37:15,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:37:15,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:37:15,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:37:15" (1/1) ... [2020-09-24 21:37:15,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c77fbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:15, skipping insertion in model container [2020-09-24 21:37:15,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:37:15" (1/1) ... [2020-09-24 21:37:16,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:37:16,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:37:16,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:37:16,273 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:37:16,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:37:16,310 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:37:16,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16 WrapperNode [2020-09-24 21:37:16,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:37:16,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:37:16,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:37:16,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:37:16,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (1/1) ... [2020-09-24 21:37:16,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (1/1) ... [2020-09-24 21:37:16,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (1/1) ... [2020-09-24 21:37:16,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (1/1) ... [2020-09-24 21:37:16,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (1/1) ... [2020-09-24 21:37:16,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (1/1) ... [2020-09-24 21:37:16,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (1/1) ... [2020-09-24 21:37:16,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:37:16,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:37:16,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:37:16,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:37:16,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (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 21:37:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:37:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:37:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-09-24 21:37:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-24 21:37:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:37:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:37:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-09-24 21:37:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:37:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:37:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:37:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-24 21:37:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:37:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:37:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:37:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:37:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:37:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:37:16,928 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:37:16,928 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:37:16,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:37:16 BoogieIcfgContainer [2020-09-24 21:37:16,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:37:16,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:37:16,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:37:16,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:37:16,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:37:15" (1/3) ... [2020-09-24 21:37:16,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c90ef20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:37:16, skipping insertion in model container [2020-09-24 21:37:16,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:37:16" (2/3) ... [2020-09-24 21:37:16,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c90ef20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:37:16, skipping insertion in model container [2020-09-24 21:37:16,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:37:16" (3/3) ... [2020-09-24 21:37:16,944 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2020-09-24 21:37:16,954 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:37:16,965 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:37:16,984 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:37:17,014 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:37:17,014 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:37:17,014 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:37:17,014 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:37:17,015 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:37:17,015 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:37:17,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:37:17,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:37:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-09-24 21:37:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 21:37:17,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:17,048 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] [2020-09-24 21:37:17,049 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:17,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:17,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1338333096, now seen corresponding path program 1 times [2020-09-24 21:37:17,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:17,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630603752] [2020-09-24 21:37:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:17,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:17,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:17,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 21:37:17,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:17,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 725 [2020-09-24 21:37:17,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:37:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:37:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:37:17,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 21:37:18,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:18,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:18,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:18,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:37:18,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:18,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:37:18,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:18,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:37:18,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 21:37:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:18,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:18,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:18,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:37:18,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:18,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 21:37:18,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:37:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:37:18,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:37:18,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:37:18,353 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 21:37:18,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630603752] [2020-09-24 21:37:18,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:18,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:37:18,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498994394] [2020-09-24 21:37:18,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:37:18,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:18,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:37:18,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:37:18,387 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 11 states. [2020-09-24 21:37:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:18,971 INFO L93 Difference]: Finished difference Result 113 states and 116 transitions. [2020-09-24 21:37:18,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 21:37:18,973 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 21:37:18,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:18,986 INFO L225 Difference]: With dead ends: 113 [2020-09-24 21:37:18,986 INFO L226 Difference]: Without dead ends: 56 [2020-09-24 21:37:18,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:37:19,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-24 21:37:19,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-24 21:37:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-24 21:37:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2020-09-24 21:37:19,047 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 37 [2020-09-24 21:37:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:19,048 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2020-09-24 21:37:19,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:37:19,048 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2020-09-24 21:37:19,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-24 21:37:19,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:19,050 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] [2020-09-24 21:37:19,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:37:19,051 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:19,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2074106077, now seen corresponding path program 1 times [2020-09-24 21:37:19,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:19,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876080271] [2020-09-24 21:37:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:19,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:19,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:19,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 21:37:19,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:19,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-09-24 21:37:19,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:37:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-24 21:37:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:37:19,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:19,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:19,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:19,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:19,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:37:19,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:19,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:37:19,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:19,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:19,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:19,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:19,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:19,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 21:37:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:19,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:19,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:19,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:37:19,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:19,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 21:37:19,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:37:19,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:19,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:37:19,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:19,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:37:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:19,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:19,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:19,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:37:19,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:19,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:37:19,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:19,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:19,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:19,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:19,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:19,880 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 21:37:19,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876080271] [2020-09-24 21:37:19,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:19,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:37:19,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972278485] [2020-09-24 21:37:19,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:37:19,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:19,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:37:19,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:37:19,886 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 8 states. [2020-09-24 21:37:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:20,189 INFO L93 Difference]: Finished difference Result 58 states and 57 transitions. [2020-09-24 21:37:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:37:20,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-09-24 21:37:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:20,192 INFO L225 Difference]: With dead ends: 58 [2020-09-24 21:37:20,193 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 21:37:20,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:37:20,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 21:37:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-24 21:37:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 21:37:20,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 54 transitions. [2020-09-24 21:37:20,204 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 54 transitions. Word has length 49 [2020-09-24 21:37:20,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:20,204 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 54 transitions. [2020-09-24 21:37:20,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:37:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 54 transitions. [2020-09-24 21:37:20,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-24 21:37:20,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:37:20,207 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] [2020-09-24 21:37:20,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:37:20,207 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:37:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:37:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash 593220670, now seen corresponding path program 1 times [2020-09-24 21:37:20,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:37:20,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980234050] [2020-09-24 21:37:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:37:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:20,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:22,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:22,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 21:37:22,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:22,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2728 [2020-09-24 21:37:22,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 21:37:22,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:37:22,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 21:37:22,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:23,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:37:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:37:23,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:37:23,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:37:23,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:37:23,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:37:23,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:23,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 21:37:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:23,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:23,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:23,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:37:23,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-24 21:37:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:37:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:37:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 21:37:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:24,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-24 21:37:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:37:24,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:37:24,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:37:24,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 21:37:24,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:37:24,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 21:37:24,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:37:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:37:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:37:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:37:24,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:37:24,680 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 21:37:24,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980234050] [2020-09-24 21:37:24,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:37:24,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-09-24 21:37:24,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787376836] [2020-09-24 21:37:24,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 21:37:24,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:37:24,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 21:37:24,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:37:24,684 INFO L87 Difference]: Start difference. First operand 55 states and 54 transitions. Second operand 25 states. [2020-09-24 21:37:25,717 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-09-24 21:37:25,993 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-09-24 21:37:26,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:37:26,499 INFO L93 Difference]: Finished difference Result 55 states and 54 transitions. [2020-09-24 21:37:26,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 21:37:26,499 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 54 [2020-09-24 21:37:26,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:37:26,500 INFO L225 Difference]: With dead ends: 55 [2020-09-24 21:37:26,500 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:37:26,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=244, Invalid=1826, Unknown=0, NotChecked=0, Total=2070 [2020-09-24 21:37:26,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:37:26,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:37:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:37:26,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:37:26,506 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-09-24 21:37:26,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:37:26,506 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:37:26,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 21:37:26,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:37:26,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:37:26,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:37:26,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:37:26,685 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,685 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,686 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 21:37:26,686 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,686 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 21:37:26,686 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |f_#in~a| f_~a) (= |#memory_int| |old(#memory_int)|) (= |f_#in~p2.base| f_~p2.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= f_~p1.offset |f_#in~p1.offset|) (= |f_#in~p1.base| f_~p1.base) (= f_~p2.offset |f_#in~p2.offset|)) [2020-09-24 21:37:26,687 INFO L268 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2020-09-24 21:37:26,687 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-24 21:37:26,687 INFO L268 CegarLoopResult]: For program point L11(lines 11 18) no Hoare annotation was computed. [2020-09-24 21:37:26,687 INFO L268 CegarLoopResult]: For program point L11-1(lines 11 18) no Hoare annotation was computed. [2020-09-24 21:37:26,687 INFO L268 CegarLoopResult]: For program point fEXIT(lines 11 18) no Hoare annotation was computed. [2020-09-24 21:37:26,688 INFO L264 CegarLoopResult]: At program point fENTRY(lines 11 18) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-24 21:37:26,688 INFO L268 CegarLoopResult]: For program point fFINAL(lines 11 18) no Hoare annotation was computed. [2020-09-24 21:37:26,688 INFO L268 CegarLoopResult]: For program point gEXIT(lines 4 9) no Hoare annotation was computed. [2020-09-24 21:37:26,688 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 21:37:26,688 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 21:37:26,688 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-24 21:37:26,688 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 21:37:26,689 INFO L268 CegarLoopResult]: For program point L7-2(line 7) no Hoare annotation was computed. [2020-09-24 21:37:26,689 INFO L268 CegarLoopResult]: For program point gFINAL(lines 4 9) no Hoare annotation was computed. [2020-09-24 21:37:26,689 INFO L264 CegarLoopResult]: At program point gENTRY(lines 4 9) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-24 21:37:26,689 INFO L268 CegarLoopResult]: For program point L4(lines 4 9) no Hoare annotation was computed. [2020-09-24 21:37:26,689 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 21:37:26,689 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-09-24 21:37:26,690 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,690 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:37:26,690 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:37:26,690 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:37:26,691 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-24 21:37:26,691 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 46) no Hoare annotation was computed. [2020-09-24 21:37:26,691 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-24 21:37:26,693 INFO L264 CegarLoopResult]: At program point L32-1(line 32) the Hoare annotation is: (and (= (select |#valid| |main_~#b~0.base|) 1) (= |main_#t~mem4| 4) (not (= |main_~#b~0.base| |main_~#p2~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select (select |#memory_$Pointer$.base| |main_~#p2~0.base|) |main_~#p2~0.offset|) |main_~#b~0.base|) (not (= |main_~#p2~0.base| |main_~#a~0.base|)) (not (= |main_~#p1~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1) (= (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|) 4) (not (= |main_~#b~0.base| |main_~#p1~0.base|))) [2020-09-24 21:37:26,693 INFO L268 CegarLoopResult]: For program point L32-2(line 32) no Hoare annotation was computed. [2020-09-24 21:37:26,693 INFO L268 CegarLoopResult]: For program point L32-3(line 32) no Hoare annotation was computed. [2020-09-24 21:37:26,694 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 21:37:26,694 INFO L268 CegarLoopResult]: For program point L32-4(line 32) no Hoare annotation was computed. [2020-09-24 21:37:26,695 INFO L268 CegarLoopResult]: For program point L32-5(line 32) no Hoare annotation was computed. [2020-09-24 21:37:26,695 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 21:37:26,695 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-24 21:37:26,695 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 21:37:26,696 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,696 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,696 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,696 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,696 INFO L268 CegarLoopResult]: For program point L21-4(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,696 INFO L268 CegarLoopResult]: For program point L21-5(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,697 INFO L268 CegarLoopResult]: For program point L21-6(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,697 INFO L268 CegarLoopResult]: For program point L21-7(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,697 INFO L268 CegarLoopResult]: For program point L21-8(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,697 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 46) no Hoare annotation was computed. [2020-09-24 21:37:26,697 INFO L268 CegarLoopResult]: For program point L21-9(line 21) no Hoare annotation was computed. [2020-09-24 21:37:26,698 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-24 21:37:26,698 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-24 21:37:26,698 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-24 21:37:26,698 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-09-24 21:37:26,698 INFO L268 CegarLoopResult]: For program point L38-3(line 38) no Hoare annotation was computed. [2020-09-24 21:37:26,699 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-24 21:37:26,699 INFO L268 CegarLoopResult]: For program point L38-4(line 38) no Hoare annotation was computed. [2020-09-24 21:37:26,699 INFO L268 CegarLoopResult]: For program point L34-1(lines 34 36) no Hoare annotation was computed. [2020-09-24 21:37:26,699 INFO L268 CegarLoopResult]: For program point L38-5(line 38) no Hoare annotation was computed. [2020-09-24 21:37:26,699 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-24 21:37:26,699 INFO L268 CegarLoopResult]: For program point L38-6(line 38) no Hoare annotation was computed. [2020-09-24 21:37:26,700 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-09-24 21:37:26,700 INFO L268 CegarLoopResult]: For program point L34-3(line 34) no Hoare annotation was computed. [2020-09-24 21:37:26,700 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 21:37:26,700 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 46) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-24 21:37:26,701 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-24 21:37:26,701 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-24 21:37:26,701 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed. [2020-09-24 21:37:26,701 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,701 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,701 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,702 INFO L268 CegarLoopResult]: For program point L22-3(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,702 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,702 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,702 INFO L268 CegarLoopResult]: For program point L22-6(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,702 INFO L268 CegarLoopResult]: For program point L22-7(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,702 INFO L268 CegarLoopResult]: For program point L22-8(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,703 INFO L268 CegarLoopResult]: For program point L22-9(line 22) no Hoare annotation was computed. [2020-09-24 21:37:26,703 INFO L264 CegarLoopResult]: At program point L39(lines 20 46) the Hoare annotation is: false [2020-09-24 21:37:26,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:37:26 BoogieIcfgContainer [2020-09-24 21:37:26,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:37:26,725 INFO L168 Benchmark]: Toolchain (without parser) took 10745.31 ms. Allocated memory was 140.5 MB in the beginning and 310.4 MB in the end (delta: 169.9 MB). Free memory was 104.2 MB in the beginning and 193.5 MB in the end (delta: -89.3 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,727 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:37:26,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.06 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 93.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,730 INFO L168 Benchmark]: Boogie Preprocessor took 123.17 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.5 MB in the beginning and 180.9 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,732 INFO L168 Benchmark]: RCFGBuilder took 498.93 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 157.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,739 INFO L168 Benchmark]: TraceAbstraction took 9785.93 ms. Allocated memory was 202.9 MB in the beginning and 310.4 MB in the end (delta: 107.5 MB). Free memory was 157.3 MB in the beginning and 193.5 MB in the end (delta: -36.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:37:26,752 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 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 328.06 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 93.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.17 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.5 MB in the beginning and 180.9 MB in the end (delta: -87.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 498.93 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 157.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9785.93 ms. Allocated memory was 202.9 MB in the beginning and 310.4 MB in the end (delta: 107.5 MB). Free memory was 157.3 MB in the beginning and 193.5 MB in the end (delta: -36.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 20]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 131 SDtfs, 207 SDslu, 518 SDs, 0 SdLazy, 1075 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 119 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 62528 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...