/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/eca-rers2012/Problem11_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 03:44:20,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 03:44:20,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 03:44:20,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 03:44:20,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 03:44:20,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 03:44:20,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 03:44:20,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 03:44:20,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 03:44:20,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 03:44:20,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 03:44:20,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 03:44:20,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 03:44:20,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 03:44:20,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 03:44:20,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 03:44:20,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 03:44:20,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 03:44:20,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 03:44:20,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 03:44:20,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 03:44:20,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 03:44:20,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 03:44:20,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 03:44:20,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 03:44:20,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 03:44:20,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 03:44:20,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 03:44:20,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 03:44:20,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 03:44:20,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 03:44:20,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 03:44:20,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 03:44:20,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 03:44:20,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 03:44:20,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 03:44:20,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 03:44:20,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 03:44:20,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 03:44:20,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 03:44:20,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 03:44:20,861 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 03:44:20,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 03:44:20,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 03:44:20,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 03:44:20,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 03:44:20,910 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 03:44:20,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 03:44:20,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 03:44:20,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 03:44:20,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 03:44:20,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 03:44:20,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 03:44:20,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 03:44:20,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 03:44:20,913 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 03:44:20,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 03:44:20,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 03:44:20,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 03:44:20,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 03:44:20,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 03:44:20,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 03:44:20,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 03:44:20,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 03:44:20,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 03:44:20,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 03:44:20,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 03:44:20,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 03:44:20,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 03:44:20,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 03:44:20,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 03:44:20,916 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 03:44:21,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 03:44:21,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 03:44:21,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 03:44:21,409 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 03:44:21,410 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 03:44:21,411 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label58.c [2020-08-28 03:44:21,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02c843878/f91ba994d2b548cbabc2b4c6f8ea768a/FLAG1e4c29f6d [2020-08-28 03:44:22,207 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 03:44:22,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label58.c [2020-08-28 03:44:22,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02c843878/f91ba994d2b548cbabc2b4c6f8ea768a/FLAG1e4c29f6d [2020-08-28 03:44:22,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02c843878/f91ba994d2b548cbabc2b4c6f8ea768a [2020-08-28 03:44:22,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 03:44:22,433 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 03:44:22,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 03:44:22,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 03:44:22,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 03:44:22,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 03:44:22" (1/1) ... [2020-08-28 03:44:22,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425b51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:22, skipping insertion in model container [2020-08-28 03:44:22,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 03:44:22" (1/1) ... [2020-08-28 03:44:22,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 03:44:22,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 03:44:23,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 03:44:23,420 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 03:44:23,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 03:44:23,621 INFO L208 MainTranslator]: Completed translation [2020-08-28 03:44:23,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23 WrapperNode [2020-08-28 03:44:23,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 03:44:23,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 03:44:23,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 03:44:23,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 03:44:23,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (1/1) ... [2020-08-28 03:44:23,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (1/1) ... [2020-08-28 03:44:23,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (1/1) ... [2020-08-28 03:44:23,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (1/1) ... [2020-08-28 03:44:23,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (1/1) ... [2020-08-28 03:44:23,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (1/1) ... [2020-08-28 03:44:23,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (1/1) ... [2020-08-28 03:44:23,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 03:44:23,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 03:44:23,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 03:44:23,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 03:44:23,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (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 03:44:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 03:44:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 03:44:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-28 03:44:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 03:44:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-28 03:44:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 03:44:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-28 03:44:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-28 03:44:23,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 03:44:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 03:44:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 03:44:25,763 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 03:44:25,764 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-28 03:44:25,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 03:44:25 BoogieIcfgContainer [2020-08-28 03:44:25,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 03:44:25,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 03:44:25,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 03:44:25,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 03:44:25,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 03:44:22" (1/3) ... [2020-08-28 03:44:25,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2228c583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 03:44:25, skipping insertion in model container [2020-08-28 03:44:25,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 03:44:23" (2/3) ... [2020-08-28 03:44:25,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2228c583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 03:44:25, skipping insertion in model container [2020-08-28 03:44:25,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 03:44:25" (3/3) ... [2020-08-28 03:44:25,784 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label58.c [2020-08-28 03:44:25,797 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 03:44:25,808 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 03:44:25,832 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 03:44:25,867 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 03:44:25,867 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 03:44:25,867 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 03:44:25,867 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 03:44:25,868 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 03:44:25,868 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 03:44:25,868 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 03:44:25,868 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 03:44:25,899 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-08-28 03:44:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-28 03:44:25,908 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 03:44:25,909 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] [2020-08-28 03:44:25,910 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 03:44:25,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 03:44:25,919 INFO L82 PathProgramCache]: Analyzing trace with hash -806848853, now seen corresponding path program 1 times [2020-08-28 03:44:25,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 03:44:25,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331766080] [2020-08-28 03:44:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 03:44:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 03:44:26,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 03:44:26,111 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 03:44:26,119 INFO L168 Benchmark]: Toolchain (without parser) took 3685.23 ms. Allocated memory was 140.0 MB in the beginning and 242.2 MB in the end (delta: 102.2 MB). Free memory was 100.0 MB in the beginning and 89.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. [2020-08-28 03:44:26,120 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-28 03:44:26,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1186.18 ms. Allocated memory was 140.0 MB in the beginning and 209.7 MB in the end (delta: 69.7 MB). Free memory was 100.0 MB in the beginning and 164.4 MB in the end (delta: -64.5 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-08-28 03:44:26,123 INFO L168 Benchmark]: Boogie Preprocessor took 145.96 ms. Allocated memory is still 209.7 MB. Free memory was 164.4 MB in the beginning and 156.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. [2020-08-28 03:44:26,124 INFO L168 Benchmark]: RCFGBuilder took 2003.46 ms. Allocated memory was 209.7 MB in the beginning and 242.2 MB in the end (delta: 32.5 MB). Free memory was 156.7 MB in the beginning and 104.2 MB in the end (delta: 52.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-08-28 03:44:26,125 INFO L168 Benchmark]: TraceAbstraction took 340.94 ms. Allocated memory is still 242.2 MB. Free memory was 104.2 MB in the beginning and 89.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-08-28 03:44:26,129 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1186.18 ms. Allocated memory was 140.0 MB in the beginning and 209.7 MB in the end (delta: 69.7 MB). Free memory was 100.0 MB in the beginning and 164.4 MB in the end (delta: -64.5 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.96 ms. Allocated memory is still 209.7 MB. Free memory was 164.4 MB in the beginning and 156.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2003.46 ms. Allocated memory was 209.7 MB in the beginning and 242.2 MB in the end (delta: 32.5 MB). Free memory was 156.7 MB in the beginning and 104.2 MB in the end (delta: 52.5 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 340.94 ms. Allocated memory is still 242.2 MB. Free memory was 104.2 MB in the beginning and 89.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 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...