/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 04:07:55,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 04:07:55,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 04:07:55,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 04:07:55,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 04:07:55,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 04:07:55,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 04:07:55,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 04:07:55,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 04:07:55,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 04:07:55,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 04:07:55,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 04:07:55,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 04:07:55,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 04:07:55,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 04:07:55,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 04:07:56,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 04:07:56,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 04:07:56,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 04:07:56,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 04:07:56,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 04:07:56,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 04:07:56,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 04:07:56,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 04:07:56,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 04:07:56,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 04:07:56,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 04:07:56,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 04:07:56,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 04:07:56,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 04:07:56,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 04:07:56,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 04:07:56,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 04:07:56,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 04:07:56,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 04:07:56,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 04:07:56,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 04:07:56,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 04:07:56,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 04:07:56,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 04:07:56,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 04:07:56,027 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 [2020-08-28 04:07:56,054 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 04:07:56,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 04:07:56,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 04:07:56,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 04:07:56,056 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 04:07:56,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 04:07:56,056 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 04:07:56,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 04:07:56,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 04:07:56,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 04:07:56,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 04:07:56,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 04:07:56,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 04:07:56,058 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 04:07:56,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 04:07:56,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 04:07:56,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 04:07:56,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 04:07:56,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 04:07:56,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 04:07:56,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 04:07:56,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 04:07:56,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 04:07:56,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 04:07:56,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 04:07:56,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 04:07:56,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 04:07:56,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 04:07:56,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 04:07:56,061 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-08-28 04:07:56,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 04:07:56,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 04:07:56,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 04:07:56,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 04:07:56,575 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 04:07:56,576 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-08-28 04:07:56,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00491569f/344463eee4834e23b99513b8910c2261/FLAGd7a836a7a [2020-08-28 04:07:57,327 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 04:07:57,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-08-28 04:07:57,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00491569f/344463eee4834e23b99513b8910c2261/FLAGd7a836a7a [2020-08-28 04:07:57,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00491569f/344463eee4834e23b99513b8910c2261 [2020-08-28 04:07:57,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 04:07:57,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 04:07:57,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 04:07:57,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 04:07:57,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 04:07:57,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 04:07:57" (1/1) ... [2020-08-28 04:07:57,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605628e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:57, skipping insertion in model container [2020-08-28 04:07:57,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 04:07:57" (1/1) ... [2020-08-28 04:07:57,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 04:07:57,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 04:07:58,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 04:07:58,304 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 04:07:58,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 04:07:58,435 INFO L208 MainTranslator]: Completed translation [2020-08-28 04:07:58,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58 WrapperNode [2020-08-28 04:07:58,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 04:07:58,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 04:07:58,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 04:07:58,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 04:07:58,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (1/1) ... [2020-08-28 04:07:58,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (1/1) ... [2020-08-28 04:07:58,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (1/1) ... [2020-08-28 04:07:58,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (1/1) ... [2020-08-28 04:07:58,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (1/1) ... [2020-08-28 04:07:58,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (1/1) ... [2020-08-28 04:07:58,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (1/1) ... [2020-08-28 04:07:58,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 04:07:58,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 04:07:58,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 04:07:58,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 04:07:58,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (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 [2020-08-28 04:07:58,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 04:07:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 04:07:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-28 04:07:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 04:07:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-28 04:07:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 04:07:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-28 04:07:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-28 04:07:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 04:07:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 04:07:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 04:08:00,010 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 04:08:00,010 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-28 04:08:00,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 04:08:00 BoogieIcfgContainer [2020-08-28 04:08:00,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 04:08:00,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 04:08:00,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 04:08:00,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 04:08:00,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 04:07:57" (1/3) ... [2020-08-28 04:08:00,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c95499b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 04:08:00, skipping insertion in model container [2020-08-28 04:08:00,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 04:07:58" (2/3) ... [2020-08-28 04:08:00,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c95499b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 04:08:00, skipping insertion in model container [2020-08-28 04:08:00,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 04:08:00" (3/3) ... [2020-08-28 04:08:00,028 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label38.c [2020-08-28 04:08:00,040 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 04:08:00,054 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 04:08:00,080 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 04:08:00,119 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 04:08:00,119 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 04:08:00,119 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 04:08:00,119 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 04:08:00,120 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 04:08:00,120 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 04:08:00,120 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 04:08:00,120 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 04:08:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-28 04:08:00,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-28 04:08:00,162 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 04:08:00,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 04:08:00,164 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 04:08:00,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 04:08:00,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1813043417, now seen corresponding path program 1 times [2020-08-28 04:08:00,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 04:08:00,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126854343] [2020-08-28 04:08:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 04:08:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 04:08:00,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 04:08:00,378 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Proof production must be enabled (you can do this via setOption). at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:170) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-28 04:08:00,386 INFO L168 Benchmark]: Toolchain (without parser) took 2783.30 ms. Allocated memory was 138.4 MB in the beginning and 234.4 MB in the end (delta: 95.9 MB). Free memory was 100.0 MB in the beginning and 166.5 MB in the end (delta: -66.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-08-28 04:08:00,387 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 04:08:00,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.84 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 99.8 MB in the beginning and 169.8 MB in the end (delta: -70.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-08-28 04:08:00,390 INFO L168 Benchmark]: Boogie Preprocessor took 156.28 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-28 04:08:00,391 INFO L168 Benchmark]: RCFGBuilder took 1424.16 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 164.8 MB in the beginning and 181.2 MB in the end (delta: -16.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-08-28 04:08:00,392 INFO L168 Benchmark]: TraceAbstraction took 363.20 ms. Allocated memory is still 234.4 MB. Free memory was 179.7 MB in the beginning and 166.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-08-28 04:08:00,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 833.84 ms. Allocated memory was 138.4 MB in the beginning and 203.9 MB in the end (delta: 65.5 MB). Free memory was 99.8 MB in the beginning and 169.8 MB in the end (delta: -70.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.28 ms. Allocated memory is still 203.9 MB. Free memory was 169.8 MB in the beginning and 164.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1424.16 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 164.8 MB in the beginning and 181.2 MB in the end (delta: -16.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 363.20 ms. Allocated memory is still 234.4 MB. Free memory was 179.7 MB in the beginning and 166.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Proof production must be enabled (you can do this via setOption). de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Proof production must be enabled (you can do this via setOption).: de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...