/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:40:45,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:40:45,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:40:45,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:40:45,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:40:45,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:40:45,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:40:45,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:40:46,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:40:46,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:40:46,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:40:46,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:40:46,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:40:46,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:40:46,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:40:46,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:40:46,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:40:46,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:40:46,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:40:46,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:40:46,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:40:46,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:40:46,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:40:46,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:40:46,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:40:46,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:40:46,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:40:46,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:40:46,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:40:46,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:40:46,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:40:46,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:40:46,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:40:46,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:40:46,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:40:46,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:40:46,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:40:46,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:40:46,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:40:46,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:40:46,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:40:46,060 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 22:40:46,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:40:46,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:40:46,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:40:46,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:40:46,115 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:40:46,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:40:46,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:40:46,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:40:46,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:40:46,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:40:46,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:40:46,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:40:46,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:40:46,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:40:46,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:40:46,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:40:46,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:40:46,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:40:46,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:40:46,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:40:46,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:40:46,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:40:46,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:40:46,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:40:46,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:40:46,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:40:46,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:40:46,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:40:46,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:40:46,122 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:40:46,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:40:46,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:40:46,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:40:46,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:40:46,598 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:40:46,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-09-24 22:40:46,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49ef61532/a6c65ba99a5f43d78e32a906534e52bb/FLAG6ed04fda1 [2020-09-24 22:40:47,212 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:40:47,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-09-24 22:40:47,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49ef61532/a6c65ba99a5f43d78e32a906534e52bb/FLAG6ed04fda1 [2020-09-24 22:40:47,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49ef61532/a6c65ba99a5f43d78e32a906534e52bb [2020-09-24 22:40:47,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:40:47,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:40:47,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:40:47,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:40:47,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:40:47,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c096cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47, skipping insertion in model container [2020-09-24 22:40:47,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:40:47,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:40:47,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:40:47,831 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:40:47,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:40:47,870 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:40:47,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47 WrapperNode [2020-09-24 22:40:47,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:40:47,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:40:47,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:40:47,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:40:47,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (1/1) ... [2020-09-24 22:40:47,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:40:47,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:40:47,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:40:47,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:40:47,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (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 22:40:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:40:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:40:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 22:40:48,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:40:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 22:40:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:40:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 22:40:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:40:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:40:48,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:40:48,275 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:40:48,275 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:40:48,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:40:48 BoogieIcfgContainer [2020-09-24 22:40:48,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:40:48,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:40:48,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:40:48,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:40:48,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:40:47" (1/3) ... [2020-09-24 22:40:48,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa265ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:40:48, skipping insertion in model container [2020-09-24 22:40:48,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:47" (2/3) ... [2020-09-24 22:40:48,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa265ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:40:48, skipping insertion in model container [2020-09-24 22:40:48,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:40:48" (3/3) ... [2020-09-24 22:40:48,325 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b2_o3.c [2020-09-24 22:40:48,357 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:40:48,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:40:48,437 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:40:48,473 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:40:48,473 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:40:48,474 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:40:48,474 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:40:48,474 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:40:48,475 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:40:48,475 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:40:48,475 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:40:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-24 22:40:48,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 22:40:48,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:48,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:48,513 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:48,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1920796714, now seen corresponding path program 1 times [2020-09-24 22:40:48,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:48,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300337604] [2020-09-24 22:40:48,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:48,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:48,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:48,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 22:40:48,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:48,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 22:40:48,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 22:40:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:40:48,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:40:48,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:48,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:48,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:48,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:48,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:48,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:40:48,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:48,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:48,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:48,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:48,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:40:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:48,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:48,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:48,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:48,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:48,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:40:48,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:40:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:40:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:48,918 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 22:40:48,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300337604] [2020-09-24 22:40:48,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:40:48,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:40:48,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394050872] [2020-09-24 22:40:48,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:40:48,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:48,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:40:48,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:40:48,947 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-24 22:40:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:49,030 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-09-24 22:40:49,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:40:49,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 22:40:49,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:49,045 INFO L225 Difference]: With dead ends: 40 [2020-09-24 22:40:49,045 INFO L226 Difference]: Without dead ends: 25 [2020-09-24 22:40:49,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:40:49,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-24 22:40:49,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-24 22:40:49,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-24 22:40:49,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-09-24 22:40:49,102 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2020-09-24 22:40:49,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:49,102 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-09-24 22:40:49,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:40:49,103 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-09-24 22:40:49,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-24 22:40:49,105 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:49,105 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:49,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:40:49,106 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:49,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:49,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1151880470, now seen corresponding path program 1 times [2020-09-24 22:40:49,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:49,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640050537] [2020-09-24 22:40:49,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:49,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:49,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 22:40:49,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:49,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-24 22:40:49,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:49,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 22:40:49,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:40:49,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:40:49,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:49,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:49,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:49,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:49,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:40:49,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:49,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:49,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:49,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 22:40:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:49,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:49,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:40:49,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:49,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 22:40:49,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:49,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:49,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 22:40:49,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:49,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 22:40:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:49,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:49,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:49,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:40:49,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:49,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:49,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 22:40:49,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640050537] [2020-09-24 22:40:49,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:40:49,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:40:49,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179653818] [2020-09-24 22:40:49,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:40:49,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:49,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:40:49,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:40:49,896 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2020-09-24 22:40:49,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:49,983 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-09-24 22:40:49,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:40:49,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-24 22:40:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:49,985 INFO L225 Difference]: With dead ends: 27 [2020-09-24 22:40:49,985 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 22:40:49,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:40:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 22:40:49,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 22:40:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 22:40:49,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 22:40:49,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-09-24 22:40:49,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:49,989 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 22:40:49,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:40:49,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 22:40:49,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 22:40:49,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:40:49,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 22:40:50,038 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 22:40:50,038 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:40:50,038 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 22:40:50,038 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 22:40:50,038 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 22:40:50,039 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 22:40:50,039 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-09-24 22:40:50,039 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2020-09-24 22:40:50,039 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2020-09-24 22:40:50,039 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 22:40:50,039 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-09-24 22:40:50,040 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-09-24 22:40:50,040 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 22:40:50,040 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-24 22:40:50,040 INFO L268 CegarLoopResult]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2020-09-24 22:40:50,040 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-24 22:40:50,040 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2020-09-24 22:40:50,041 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2020-09-24 22:40:50,041 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2020-09-24 22:40:50,041 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 22:40:50,041 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-24 22:40:50,041 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-09-24 22:40:50,042 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-24 22:40:50,042 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 22:40:50,042 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 22:40:50,042 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 22:40:50,042 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-24 22:40:50,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:40:50 BoogieIcfgContainer [2020-09-24 22:40:50,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:40:50,058 INFO L168 Benchmark]: Toolchain (without parser) took 2480.37 ms. Allocated memory was 141.6 MB in the beginning and 233.8 MB in the end (delta: 92.3 MB). Free memory was 103.6 MB in the beginning and 200.2 MB in the end (delta: -96.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 22:40:50,060 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 22:40:50,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.00 ms. Allocated memory is still 141.6 MB. Free memory was 102.9 MB in the beginning and 93.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:40:50,062 INFO L168 Benchmark]: Boogie Preprocessor took 30.99 ms. Allocated memory is still 141.6 MB. Free memory was 93.8 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-24 22:40:50,064 INFO L168 Benchmark]: RCFGBuilder took 378.50 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 172.2 MB in the end (delta: -80.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-24 22:40:50,066 INFO L168 Benchmark]: TraceAbstraction took 1754.90 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 171.6 MB in the beginning and 200.2 MB in the end (delta: -28.6 MB). Peak memory consumption was 759.2 kB. Max. memory is 7.1 GB. [2020-09-24 22:40:50,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.00 ms. Allocated memory is still 141.6 MB. Free memory was 102.9 MB in the beginning and 93.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.99 ms. Allocated memory is still 141.6 MB. Free memory was 93.8 MB in the beginning and 92.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 378.50 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 172.2 MB in the end (delta: -80.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1754.90 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 171.6 MB in the beginning and 200.2 MB in the end (delta: -28.6 MB). Peak memory consumption was 759.2 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 6 SDslu, 157 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 2319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 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...