/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:20:48,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:20:48,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:20:48,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:20:48,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:20:48,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:20:48,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:20:48,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:20:48,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:20:48,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:20:48,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:20:48,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:20:48,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:20:48,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:20:48,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:20:48,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:20:48,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:20:48,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:20:48,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:20:48,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:20:48,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:20:48,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:20:48,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:20:48,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:20:48,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:20:48,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:20:48,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:20:48,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:20:48,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:20:48,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:20:48,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:20:48,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:20:48,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:20:48,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:20:48,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:20:48,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:20:48,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:20:48,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:20:48,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:20:48,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:20:48,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:20:48,155 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 17:20:48,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:20:48,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:20:48,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:20:48,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:20:48,183 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:20:48,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:20:48,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:20:48,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:20:48,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:20:48,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:20:48,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:20:48,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:20:48,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:20:48,185 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:20:48,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:20:48,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:20:48,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:20:48,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:20:48,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:20:48,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:20:48,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:20:48,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:20:48,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:20:48,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:20:48,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:20:48,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:20:48,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:20:48,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:20:48,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:20:48,189 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;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;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;log-additional-information=true; [2020-09-24 17:20:48,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:20:48,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:20:48,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:20:48,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:20:48,707 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:20:48,708 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2020-09-24 17:20:48,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/945fb909f/d338e954d9c84fda9130e223f3ad3908/FLAGa89e50ccf [2020-09-24 17:20:49,374 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:20:49,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2020-09-24 17:20:49,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/945fb909f/d338e954d9c84fda9130e223f3ad3908/FLAGa89e50ccf [2020-09-24 17:20:49,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/945fb909f/d338e954d9c84fda9130e223f3ad3908 [2020-09-24 17:20:49,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:20:49,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:20:49,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:20:49,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:20:49,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:20:49,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:49" (1/1) ... [2020-09-24 17:20:49,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8f2cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:49, skipping insertion in model container [2020-09-24 17:20:49,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:49" (1/1) ... [2020-09-24 17:20:49,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:20:49,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:20:49,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:20:49,986 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:20:50,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:20:50,019 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:20:50,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50 WrapperNode [2020-09-24 17:20:50,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:20:50,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:20:50,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:20:50,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:20:50,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (1/1) ... [2020-09-24 17:20:50,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (1/1) ... [2020-09-24 17:20:50,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (1/1) ... [2020-09-24 17:20:50,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (1/1) ... [2020-09-24 17:20:50,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (1/1) ... [2020-09-24 17:20:50,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (1/1) ... [2020-09-24 17:20:50,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (1/1) ... [2020-09-24 17:20:50,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:20:50,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:20:50,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:20:50,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:20:50,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (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 17:20:50,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:20:50,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:20:50,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 17:20:50,224 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-24 17:20:50,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:20:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:20:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:20:50,224 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-24 17:20:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:20:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:20:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:20:50,423 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:20:50,425 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 17:20:50,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:50 BoogieIcfgContainer [2020-09-24 17:20:50,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:20:50,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:20:50,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:20:50,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:20:50,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:20:49" (1/3) ... [2020-09-24 17:20:50,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66696b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:50, skipping insertion in model container [2020-09-24 17:20:50,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:50" (2/3) ... [2020-09-24 17:20:50,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66696b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:50, skipping insertion in model container [2020-09-24 17:20:50,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:50" (3/3) ... [2020-09-24 17:20:50,469 INFO L109 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.c [2020-09-24 17:20:50,506 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:20:50,523 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:20:50,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:20:50,599 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:20:50,599 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:20:50,599 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:20:50,599 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:20:50,600 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:20:50,600 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:20:50,600 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:20:50,600 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:20:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 17:20:50,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-24 17:20:50,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:20:50,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:20:50,636 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:20:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:20:50,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1063393928, now seen corresponding path program 1 times [2020-09-24 17:20:50,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:20:50,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908637635] [2020-09-24 17:20:50,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:20:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:50,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:50,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:50,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 17:20:50,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:50,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 17:20:50,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:20:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 17:20:50,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:20:50,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:50,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:20:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:50,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:50,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:50,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:20:50,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:20:50,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:20:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:20:50,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:20:50,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:50,889 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 17:20:50,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908637635] [2020-09-24 17:20:50,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:20:50,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:20:50,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351245620] [2020-09-24 17:20:50,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:20:50,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:20:50,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:20:50,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:20:50,922 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2020-09-24 17:20:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:20:50,985 INFO L93 Difference]: Finished difference Result 39 states and 55 transitions. [2020-09-24 17:20:50,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:20:50,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-24 17:20:50,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:20:50,999 INFO L225 Difference]: With dead ends: 39 [2020-09-24 17:20:50,999 INFO L226 Difference]: Without dead ends: 20 [2020-09-24 17:20:51,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:20:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-09-24 17:20:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2020-09-24 17:20:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-09-24 17:20:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-09-24 17:20:51,049 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 10 [2020-09-24 17:20:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:20:51,049 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-09-24 17:20:51,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:20:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-09-24 17:20:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-24 17:20:51,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:20:51,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:20:51,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:20:51,052 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:20:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:20:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1652124924, now seen corresponding path program 1 times [2020-09-24 17:20:51,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:20:51,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075133943] [2020-09-24 17:20:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:20:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:51,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:51,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:51,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 17:20:51,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:51,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 17:20:51,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:51,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:20:51,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-24 17:20:51,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 17:20:51,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:51,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:20:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:51,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:51,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:51,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:20:51,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:51,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:20:51,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:20:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:20:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:20:51,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:51,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 17:20:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:51,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:51,233 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:51,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:20:51,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:51,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 17:20:51,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:20:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:20:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:20:51,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:51,242 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 17:20:51,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075133943] [2020-09-24 17:20:51,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:20:51,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:20:51,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15337833] [2020-09-24 17:20:51,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:20:51,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:20:51,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:20:51,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:20:51,247 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2020-09-24 17:20:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:20:51,344 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-09-24 17:20:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:20:51,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-24 17:20:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:20:51,346 INFO L225 Difference]: With dead ends: 18 [2020-09-24 17:20:51,347 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:20:51,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:20:51,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:20:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:20:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:20:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:20:51,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-24 17:20:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:20:51,351 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:20:51,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:20:51,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:20:51,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:20:51,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:20:51,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:20:51,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:20:51,486 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2020-09-24 17:20:51,486 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:20:51,486 INFO L264 CegarLoopResult]: At program point evalENTRY(lines 12 19) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-09-24 17:20:51,487 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 17:20:51,487 INFO L268 CegarLoopResult]: For program point L14-1(lines 12 19) no Hoare annotation was computed. [2020-09-24 17:20:51,487 INFO L268 CegarLoopResult]: For program point evalEXIT(lines 12 19) no Hoare annotation was computed. [2020-09-24 17:20:51,487 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:20:51,487 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~x~0 0) [2020-09-24 17:20:51,488 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:20:51,488 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:20:51,488 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 17:20:51,488 INFO L264 CegarLoopResult]: At program point L27(lines 22 33) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-09-24 17:20:51,488 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-09-24 17:20:51,489 INFO L264 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2020-09-24 17:20:51,489 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 22 33) no Hoare annotation was computed. [2020-09-24 17:20:51,489 INFO L264 CegarLoopResult]: At program point L24-1(lines 24 28) the Hoare annotation is: (not (= |old(~x~0)| 0)) [2020-09-24 17:20:51,489 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 22 33) no Hoare annotation was computed. [2020-09-24 17:20:51,489 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-24 17:20:51,490 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-24 17:20:51,490 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 17:20:51,490 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-24 17:20:51,490 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-24 17:20:51,490 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-24 17:20:51,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:20:51 BoogieIcfgContainer [2020-09-24 17:20:51,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:20:51,502 INFO L168 Benchmark]: Toolchain (without parser) took 1782.54 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 114.6 MB in the end (delta: -10.8 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:51,503 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 17:20:51,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.96 ms. Allocated memory is still 147.3 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:51,505 INFO L168 Benchmark]: Boogie Preprocessor took 122.26 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 94.0 MB in the beginning and 182.6 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:51,506 INFO L168 Benchmark]: RCFGBuilder took 287.90 ms. Allocated memory is still 203.4 MB. Free memory was 182.6 MB in the beginning and 171.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:51,507 INFO L168 Benchmark]: TraceAbstraction took 1051.34 ms. Allocated memory is still 203.4 MB. Free memory was 170.4 MB in the beginning and 114.6 MB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:51,511 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 295.96 ms. Allocated memory is still 147.3 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.26 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 94.0 MB in the beginning and 182.6 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.90 ms. Allocated memory is still 203.4 MB. Free memory was 182.6 MB in the beginning and 171.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1051.34 ms. Allocated memory is still 203.4 MB. Free memory was 170.4 MB in the beginning and 114.6 MB in the end (delta: 55.8 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 26 SDslu, 28 SDs, 0 SdLazy, 14 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 44 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...