/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 23:21:49,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 23:21:49,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 23:21:50,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 23:21:50,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 23:21:50,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 23:21:50,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 23:21:50,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 23:21:50,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 23:21:50,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 23:21:50,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 23:21:50,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 23:21:50,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 23:21:50,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 23:21:50,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 23:21:50,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 23:21:50,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 23:21:50,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 23:21:50,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 23:21:50,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 23:21:50,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 23:21:50,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 23:21:50,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 23:21:50,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 23:21:50,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 23:21:50,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 23:21:50,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 23:21:50,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 23:21:50,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 23:21:50,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 23:21:50,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 23:21:50,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 23:21:50,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 23:21:50,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 23:21:50,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 23:21:50,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 23:21:50,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 23:21:50,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 23:21:50,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 23:21:50,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 23:21:50,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 23:21:50,111 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 [2020-08-27 23:21:50,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 23:21:50,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 23:21:50,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 23:21:50,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 23:21:50,139 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 23:21:50,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 23:21:50,139 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 23:21:50,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 23:21:50,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 23:21:50,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 23:21:50,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 23:21:50,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 23:21:50,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 23:21:50,140 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 23:21:50,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 23:21:50,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 23:21:50,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 23:21:50,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 23:21:50,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 23:21:50,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 23:21:50,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 23:21:50,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 23:21:50,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 23:21:50,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 23:21:50,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 23:21:50,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 23:21:50,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 23:21:50,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 23:21:50,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 23:21:50,144 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=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-27 23:21:50,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 23:21:50,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 23:21:50,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 23:21:50,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 23:21:50,656 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 23:21:50,657 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.i [2020-08-27 23:21:50,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca74ba45f/0ecc14204ccd48d7aa108fc07fed1e87/FLAG4910f5029 [2020-08-27 23:21:51,254 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 23:21:51,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/mutex_lock_int.i [2020-08-27 23:21:51,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca74ba45f/0ecc14204ccd48d7aa108fc07fed1e87/FLAG4910f5029 [2020-08-27 23:21:51,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca74ba45f/0ecc14204ccd48d7aa108fc07fed1e87 [2020-08-27 23:21:51,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 23:21:51,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 23:21:51,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 23:21:51,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 23:21:51,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 23:21:51,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:21:51" (1/1) ... [2020-08-27 23:21:51,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ed4c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:51, skipping insertion in model container [2020-08-27 23:21:51,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:21:51" (1/1) ... [2020-08-27 23:21:51,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 23:21:51,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 23:21:51,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 23:21:51,990 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 23:21:52,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 23:21:52,040 INFO L208 MainTranslator]: Completed translation [2020-08-27 23:21:52,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52 WrapperNode [2020-08-27 23:21:52,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 23:21:52,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 23:21:52,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 23:21:52,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 23:21:52,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (1/1) ... [2020-08-27 23:21:52,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (1/1) ... [2020-08-27 23:21:52,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (1/1) ... [2020-08-27 23:21:52,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (1/1) ... [2020-08-27 23:21:52,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (1/1) ... [2020-08-27 23:21:52,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (1/1) ... [2020-08-27 23:21:52,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (1/1) ... [2020-08-27 23:21:52,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 23:21:52,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 23:21:52,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 23:21:52,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 23:21:52,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (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 [2020-08-27 23:21:52,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 23:21:52,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 23:21:52,266 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-08-27 23:21:52,266 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-27 23:21:52,266 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-27 23:21:52,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 23:21:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 23:21:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-08-27 23:21:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-27 23:21:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-27 23:21:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-27 23:21:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-27 23:21:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 23:21:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-27 23:21:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-27 23:21:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 23:21:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 23:21:52,535 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 23:21:52,535 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-27 23:21:52,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:21:52 BoogieIcfgContainer [2020-08-27 23:21:52,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 23:21:52,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 23:21:52,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 23:21:52,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 23:21:52,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:21:51" (1/3) ... [2020-08-27 23:21:52,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1d50b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:21:52, skipping insertion in model container [2020-08-27 23:21:52,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:21:52" (2/3) ... [2020-08-27 23:21:52,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1d50b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:21:52, skipping insertion in model container [2020-08-27 23:21:52,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:21:52" (3/3) ... [2020-08-27 23:21:52,564 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.i [2020-08-27 23:21:52,577 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 23:21:52,587 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 23:21:52,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 23:21:52,638 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 23:21:52,638 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 23:21:52,638 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 23:21:52,638 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 23:21:52,638 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 23:21:52,639 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 23:21:52,639 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 23:21:52,639 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 23:21:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-08-27 23:21:52,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-08-27 23:21:52,666 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 23:21:52,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 23:21:52,667 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 23:21:52,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 23:21:52,673 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-08-27 23:21:52,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 23:21:52,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093964214] [2020-08-27 23:21:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 23:21:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 23:21:52,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 23:21:52,829 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-27 23:21:52,837 INFO L168 Benchmark]: Toolchain (without parser) took 1213.93 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.1 MB in the beginning and 158.7 MB in the end (delta: -55.6 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB. [2020-08-27 23:21:52,839 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-27 23:21:52,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.88 ms. Allocated memory is still 141.0 MB. Free memory was 102.9 MB in the beginning and 93.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-27 23:21:52,841 INFO L168 Benchmark]: Boogie Preprocessor took 52.19 ms. Allocated memory is still 141.0 MB. Free memory was 93.2 MB in the beginning and 91.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-08-27 23:21:52,842 INFO L168 Benchmark]: RCFGBuilder took 446.32 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 91.6 MB in the beginning and 170.2 MB in the end (delta: -78.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-27 23:21:52,843 INFO L168 Benchmark]: TraceAbstraction took 282.88 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 158.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-08-27 23:21:52,847 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 415.88 ms. Allocated memory is still 141.0 MB. Free memory was 102.9 MB in the beginning and 93.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.19 ms. Allocated memory is still 141.0 MB. Free memory was 93.2 MB in the beginning and 91.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.32 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 91.6 MB in the beginning and 170.2 MB in the end (delta: -78.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 282.88 ms. Allocated memory is still 204.5 MB. Free memory was 169.6 MB in the beginning and 158.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 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...