/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 03:47:28,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 03:47:28,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 03:47:28,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 03:47:28,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 03:47:28,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 03:47:28,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 03:47:28,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 03:47:28,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 03:47:28,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 03:47:28,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 03:47:28,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 03:47:28,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 03:47:28,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 03:47:28,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 03:47:28,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 03:47:28,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 03:47:28,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 03:47:28,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 03:47:28,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 03:47:28,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 03:47:28,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 03:47:28,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 03:47:28,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 03:47:28,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 03:47:28,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 03:47:28,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 03:47:28,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 03:47:28,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 03:47:28,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 03:47:28,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 03:47:28,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 03:47:28,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 03:47:28,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 03:47:28,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 03:47:28,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 03:47:28,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 03:47:28,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 03:47:28,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 03:47:28,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 03:47:28,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 03:47:28,662 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 03:47:28,705 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 03:47:28,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 03:47:28,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 03:47:28,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 03:47:28,708 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 03:47:28,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 03:47:28,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 03:47:28,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 03:47:28,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 03:47:28,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 03:47:28,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 03:47:28,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 03:47:28,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 03:47:28,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 03:47:28,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 03:47:28,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 03:47:28,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 03:47:28,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 03:47:28,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 03:47:28,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 03:47:28,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 03:47:28,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 03:47:28,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 03:47:28,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 03:47:28,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 03:47:28,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 03:47:28,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 03:47:28,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 03:47:28,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 03:47:28,714 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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-08-28 03:47:29,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 03:47:29,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 03:47:29,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 03:47:29,271 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 03:47:29,272 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 03:47:29,273 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-08-28 03:47:29,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5aee0c5dd/7db15ae4b3524cd1ab67a9138a5a9e16/FLAG46c141ef6 [2020-08-28 03:47:30,181 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 03:47:30,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-08-28 03:47:30,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5aee0c5dd/7db15ae4b3524cd1ab67a9138a5a9e16/FLAG46c141ef6 [2020-08-28 03:47:30,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5aee0c5dd/7db15ae4b3524cd1ab67a9138a5a9e16 [2020-08-28 03:47:30,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 03:47:30,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 03:47:30,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 03:47:30,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 03:47:30,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 03:47:30,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 03:47:30" (1/1) ... [2020-08-28 03:47:30,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@394dfe3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:30, skipping insertion in model container [2020-08-28 03:47:30,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 03:47:30" (1/1) ... [2020-08-28 03:47:30,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 03:47:30,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 03:47:32,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 03:47:32,195 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 03:47:33,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 03:47:33,649 INFO L208 MainTranslator]: Completed translation [2020-08-28 03:47:33,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33 WrapperNode [2020-08-28 03:47:33,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 03:47:33,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 03:47:33,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 03:47:33,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 03:47:33,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (1/1) ... [2020-08-28 03:47:33,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (1/1) ... [2020-08-28 03:47:33,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (1/1) ... [2020-08-28 03:47:33,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (1/1) ... [2020-08-28 03:47:33,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (1/1) ... [2020-08-28 03:47:33,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (1/1) ... [2020-08-28 03:47:33,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (1/1) ... [2020-08-28 03:47:33,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 03:47:33,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 03:47:33,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 03:47:33,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 03:47:33,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (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 03:47:34,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 03:47:34,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 03:47:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-28 03:47:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 03:47:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 03:47:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-28 03:47:34,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-08-28 03:47:34,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-28 03:47:34,039 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-08-28 03:47:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-28 03:47:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-28 03:47:34,040 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-08-28 03:47:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-08-28 03:47:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-08-28 03:47:34,041 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-08-28 03:47:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-08-28 03:47:34,042 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-08-28 03:47:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-08-28 03:47:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-08-28 03:47:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-08-28 03:47:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 03:47:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 03:47:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 03:47:38,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 03:47:38,675 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-28 03:47:38,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 03:47:38 BoogieIcfgContainer [2020-08-28 03:47:38,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 03:47:38,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 03:47:38,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 03:47:38,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 03:47:38,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 03:47:30" (1/3) ... [2020-08-28 03:47:38,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2f66ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 03:47:38, skipping insertion in model container [2020-08-28 03:47:38,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:47:33" (2/3) ... [2020-08-28 03:47:38,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d2f66ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 03:47:38, skipping insertion in model container [2020-08-28 03:47:38,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 03:47:38" (3/3) ... [2020-08-28 03:47:38,704 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-08-28 03:47:38,715 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 03:47:38,728 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-08-28 03:47:38,750 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-08-28 03:47:38,784 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 03:47:38,785 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 03:47:38,785 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 03:47:38,785 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 03:47:38,785 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 03:47:38,785 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 03:47:38,785 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 03:47:38,785 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 03:47:38,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states. [2020-08-28 03:47:38,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2020-08-28 03:47:38,883 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 03:47:38,885 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 03:47:38,886 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 03:47:38,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 03:47:38,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1447603851, now seen corresponding path program 1 times [2020-08-28 03:47:38,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 03:47:38,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586608673] [2020-08-28 03:47:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 03:47:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 03:47:40,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 03:47:40,752 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 03:47:40,762 INFO L168 Benchmark]: Toolchain (without parser) took 10408.23 ms. Allocated memory was 147.8 MB in the beginning and 395.8 MB in the end (delta: 248.0 MB). Free memory was 96.8 MB in the beginning and 88.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 256.1 MB. Max. memory is 7.1 GB. [2020-08-28 03:47:40,763 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 03:47:40,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3298.54 ms. Allocated memory was 147.8 MB in the beginning and 233.8 MB in the end (delta: 86.0 MB). Free memory was 96.6 MB in the beginning and 154.1 MB in the end (delta: -57.5 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2020-08-28 03:47:40,765 INFO L168 Benchmark]: Boogie Preprocessor took 284.08 ms. Allocated memory is still 233.8 MB. Free memory was 154.1 MB in the beginning and 140.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-08-28 03:47:40,766 INFO L168 Benchmark]: RCFGBuilder took 4753.63 ms. Allocated memory was 233.8 MB in the beginning and 395.8 MB in the end (delta: 162.0 MB). Free memory was 140.1 MB in the beginning and 336.7 MB in the end (delta: -196.6 MB). Peak memory consumption was 167.1 MB. Max. memory is 7.1 GB. [2020-08-28 03:47:40,768 INFO L168 Benchmark]: TraceAbstraction took 2065.81 ms. Allocated memory is still 395.8 MB. Free memory was 336.7 MB in the beginning and 88.7 MB in the end (delta: 248.0 MB). Peak memory consumption was 248.0 MB. Max. memory is 7.1 GB. [2020-08-28 03:47:40,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3298.54 ms. Allocated memory was 147.8 MB in the beginning and 233.8 MB in the end (delta: 86.0 MB). Free memory was 96.6 MB in the beginning and 154.1 MB in the end (delta: -57.5 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 284.08 ms. Allocated memory is still 233.8 MB. Free memory was 154.1 MB in the beginning and 140.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4753.63 ms. Allocated memory was 233.8 MB in the beginning and 395.8 MB in the end (delta: 162.0 MB). Free memory was 140.1 MB in the beginning and 336.7 MB in the end (delta: -196.6 MB). Peak memory consumption was 167.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2065.81 ms. Allocated memory is still 395.8 MB. Free memory was 336.7 MB in the beginning and 88.7 MB in the end (delta: 248.0 MB). Peak memory consumption was 248.0 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...