/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/nest-if3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:20:14,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:20:14,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:20:14,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:20:14,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:20:14,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:20:14,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:20:14,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:20:14,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:20:14,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:20:14,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:20:14,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:20:14,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:20:14,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:20:14,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:20:14,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:20:14,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:20:14,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:20:14,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:20:14,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:20:14,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:20:14,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:20:14,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:20:14,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:20:14,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:20:14,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:20:14,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:20:14,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:20:14,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:20:14,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:20:14,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:20:14,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:20:14,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:20:14,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:20:14,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:20:14,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:20:14,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:20:14,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:20:14,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:20:14,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:20:14,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:20:14,180 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 [2020-09-25 02:20:14,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:20:14,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:20:14,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:20:14,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:20:14,227 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:20:14,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:20:14,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:20:14,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:20:14,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:20:14,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:20:14,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:20:14,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:20:14,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:20:14,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:20:14,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:20:14,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:20:14,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:20:14,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:20:14,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:20:14,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:20:14,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:20:14,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:20:14,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:20:14,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:20:14,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:20:14,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:20:14,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:20:14,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:20:14,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:20:14,234 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:20:14,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:20:14,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:20:14,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:20:14,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:20:14,751 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:20:14,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-09-25 02:20:14,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8889b5f29/81243869fab946fd8aeb4ba576413074/FLAG3e7240d28 [2020-09-25 02:20:15,389 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:20:15,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/nest-if3.i [2020-09-25 02:20:15,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8889b5f29/81243869fab946fd8aeb4ba576413074/FLAG3e7240d28 [2020-09-25 02:20:15,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8889b5f29/81243869fab946fd8aeb4ba576413074 [2020-09-25 02:20:15,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:20:15,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:20:15,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:20:15,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:20:15,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:20:15,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:20:15" (1/1) ... [2020-09-25 02:20:15,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df9f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:15, skipping insertion in model container [2020-09-25 02:20:15,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:20:15" (1/1) ... [2020-09-25 02:20:15,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:20:15,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:20:16,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:20:16,088 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:20:16,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:20:16,121 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:20:16,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16 WrapperNode [2020-09-25 02:20:16,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:20:16,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:20:16,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:20:16,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:20:16,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (1/1) ... [2020-09-25 02:20:16,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (1/1) ... [2020-09-25 02:20:16,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (1/1) ... [2020-09-25 02:20:16,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (1/1) ... [2020-09-25 02:20:16,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (1/1) ... [2020-09-25 02:20:16,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (1/1) ... [2020-09-25 02:20:16,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (1/1) ... [2020-09-25 02:20:16,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:20:16,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:20:16,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:20:16,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:20:16,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (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 [2020-09-25 02:20:16,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:20:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:20:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:20:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:20:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:20:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:20:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:20:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:20:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:20:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:20:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:20:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:20:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:20:16,554 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:20:16,555 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 02:20:16,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:16 BoogieIcfgContainer [2020-09-25 02:20:16,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:20:16,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:20:16,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:20:16,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:20:16,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:20:15" (1/3) ... [2020-09-25 02:20:16,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619ec23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:16, skipping insertion in model container [2020-09-25 02:20:16,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:16" (2/3) ... [2020-09-25 02:20:16,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619ec23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:16, skipping insertion in model container [2020-09-25 02:20:16,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:16" (3/3) ... [2020-09-25 02:20:16,573 INFO L109 eAbstractionObserver]: Analyzing ICFG nest-if3.i [2020-09-25 02:20:16,588 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:20:16,597 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:20:16,621 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:20:16,677 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:20:16,678 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:20:16,678 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:20:16,678 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:20:16,678 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:20:16,678 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:20:16,678 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:20:16,679 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:20:16,707 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-25 02:20:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 02:20:16,715 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:20:16,716 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] [2020-09-25 02:20:16,716 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:20:16,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:20:16,724 INFO L82 PathProgramCache]: Analyzing trace with hash 781844856, now seen corresponding path program 1 times [2020-09-25 02:20:16,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:20:16,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502281787] [2020-09-25 02:20:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:20:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:16,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:17,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:17,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 02:20:17,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:17,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 02:20:17,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:20:17,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 02:20:17,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 02:20:17,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:20:17,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:20:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:17,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:17,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:17,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:20:17,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:17,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:20:17,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:20:17,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:20:17,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:20:17,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:20:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:20:17,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502281787] [2020-09-25 02:20:17,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:20:17,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:20:17,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684588272] [2020-09-25 02:20:17,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:20:17,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:20:17,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:20:17,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:20:17,252 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 6 states. [2020-09-25 02:20:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:20:17,434 INFO L93 Difference]: Finished difference Result 93 states and 114 transitions. [2020-09-25 02:20:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:20:17,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-25 02:20:17,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:20:17,449 INFO L225 Difference]: With dead ends: 93 [2020-09-25 02:20:17,449 INFO L226 Difference]: Without dead ends: 57 [2020-09-25 02:20:17,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:20:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-25 02:20:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2020-09-25 02:20:17,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 02:20:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2020-09-25 02:20:17,509 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 25 [2020-09-25 02:20:17,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:20:17,510 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2020-09-25 02:20:17,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:20:17,511 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2020-09-25 02:20:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 02:20:17,512 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:20:17,513 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:20:17,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:20:17,513 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:20:17,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:20:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1778608888, now seen corresponding path program 1 times [2020-09-25 02:20:17,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:20:17,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220110461] [2020-09-25 02:20:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:20:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:17,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:18,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:18,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 02:20:18,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:20:18,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 645 [2020-09-25 02:20:18,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:20:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:20:18,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:20:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:20:18,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:20:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:18,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:18,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:18,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:20:18,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:18,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:20:18,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:18,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:20:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:20:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:20:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:20:18,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 02:20:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:18,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:18,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:20:18,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:20:18,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:20:18,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:20:18,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:20:18,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:20:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:20:18,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:20:18,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:20:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:20:18,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220110461] [2020-09-25 02:20:18,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:20:18,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 02:20:18,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463900369] [2020-09-25 02:20:18,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:20:18,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:20:18,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:20:18,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:20:18,362 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 8 states. [2020-09-25 02:20:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:20:18,532 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2020-09-25 02:20:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 02:20:18,532 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-09-25 02:20:18,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:20:18,533 INFO L225 Difference]: With dead ends: 57 [2020-09-25 02:20:18,533 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:20:18,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:20:18,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:20:18,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:20:18,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:20:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:20:18,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2020-09-25 02:20:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:20:18,536 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:20:18,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:20:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:20:18,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:20:18,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:20:18,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:20:18,656 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 02:20:18,657 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:20:18,657 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:20:18,657 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:20:18,657 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:20:18,657 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:20:18,657 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:20:18,658 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:20:18,658 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 02:20:18,658 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 02:20:18,658 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:20:18,658 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2020-09-25 02:20:18,658 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 02:20:18,659 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 02:20:18,659 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 02:20:18,659 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 02:20:18,659 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 02:20:18,659 INFO L268 CegarLoopResult]: For program point L24(lines 24 25) no Hoare annotation was computed. [2020-09-25 02:20:18,659 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 02:20:18,659 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-09-25 02:20:18,660 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 02:20:18,660 INFO L268 CegarLoopResult]: For program point L20-3(lines 20 26) no Hoare annotation was computed. [2020-09-25 02:20:18,660 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 02:20:18,660 INFO L268 CegarLoopResult]: For program point L20-4(line 20) no Hoare annotation was computed. [2020-09-25 02:20:18,660 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 02:20:18,660 INFO L268 CegarLoopResult]: For program point L20-5(line 20) no Hoare annotation was computed. [2020-09-25 02:20:18,661 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 02:20:18,661 INFO L264 CegarLoopResult]: At program point L20-6(lines 20 26) the Hoare annotation is: (<= 1 main_~l~0) [2020-09-25 02:20:18,661 INFO L268 CegarLoopResult]: For program point L20-7(lines 13 27) no Hoare annotation was computed. [2020-09-25 02:20:18,661 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 02:20:18,661 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 02:20:18,661 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-09-25 02:20:18,662 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 02:20:18,662 INFO L268 CegarLoopResult]: For program point L21-4(line 21) no Hoare annotation was computed. [2020-09-25 02:20:18,662 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 02:20:18,662 INFO L264 CegarLoopResult]: At program point L21-5(lines 21 23) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-09-25 02:20:18,662 INFO L268 CegarLoopResult]: For program point L21-6(lines 21 23) no Hoare annotation was computed. [2020-09-25 02:20:18,663 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2020-09-25 02:20:18,663 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2020-09-25 02:20:18,663 INFO L268 CegarLoopResult]: For program point L22-1(lines 21 23) no Hoare annotation was computed. [2020-09-25 02:20:18,663 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 02:20:18,663 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 02:20:18,664 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 02:20:18,664 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 02:20:18,664 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-25 02:20:18,664 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 02:20:18,664 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 02:20:18,664 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 02:20:18,664 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 02:20:18,665 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 02:20:18,665 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 02:20:18,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:20:18 BoogieIcfgContainer [2020-09-25 02:20:18,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:20:18,696 INFO L168 Benchmark]: Toolchain (without parser) took 2939.16 ms. Allocated memory was 141.6 MB in the beginning and 233.3 MB in the end (delta: 91.8 MB). Free memory was 104.1 MB in the beginning and 165.4 MB in the end (delta: -61.2 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:18,698 INFO L168 Benchmark]: CDTParser took 0.19 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. [2020-09-25 02:20:18,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.99 ms. Allocated memory is still 141.6 MB. Free memory was 103.5 MB in the beginning and 94.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:18,701 INFO L168 Benchmark]: Boogie Preprocessor took 114.83 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 94.1 MB in the beginning and 182.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:18,702 INFO L168 Benchmark]: RCFGBuilder took 323.82 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 167.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:18,704 INFO L168 Benchmark]: TraceAbstraction took 2127.54 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 166.4 MB in the beginning and 165.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:18,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 363.99 ms. Allocated memory is still 141.6 MB. Free memory was 103.5 MB in the beginning and 94.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.83 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 94.1 MB in the beginning and 182.1 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 323.82 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 167.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2127.54 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 166.4 MB in the beginning and 165.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 1 <= l - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 <= l && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 80 SDslu, 368 SDs, 0 SdLazy, 107 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 22 HoareAnnotationTreeSize, 10 FomulaSimplifications, 23 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 2889 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/4 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...