/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_02-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:26:47,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:26:47,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:26:47,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:26:47,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:26:47,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:26:47,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:26:47,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:26:47,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:26:47,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:26:47,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:26:47,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:26:47,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:26:47,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:26:47,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:26:47,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:26:47,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:26:47,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:26:47,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:26:47,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:26:47,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:26:47,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:26:47,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:26:47,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:26:47,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:26:47,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:26:47,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:26:47,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:26:47,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:26:47,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:26:47,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:26:47,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:26:47,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:26:47,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:26:47,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:26:47,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:26:47,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:26:47,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:26:47,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:26:47,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:26:47,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:26:47,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:26:47,428 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:26:47,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:26:47,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:26:47,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:26:47,432 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:26:47,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:26:47,432 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:26:47,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:26:47,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:26:47,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:26:47,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:26:47,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:26:47,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:26:47,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:26:47,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:26:47,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:26:47,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:26:47,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:26:47,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:26:47,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:26:47,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:26:47,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:26:47,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:26:47,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:26:47,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:26:47,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:26:47,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:26:47,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:26:47,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:26:47,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:26:47,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:26:47,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:26:47,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:26:47,932 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:26:47,933 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:26:47,934 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-2.c [2020-09-25 03:26:48,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2091dd3e/43697850dcf5492897ba7cee0001d212/FLAG868495989 [2020-09-25 03:26:48,531 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:26:48,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/terminator_02-2.c [2020-09-25 03:26:48,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2091dd3e/43697850dcf5492897ba7cee0001d212/FLAG868495989 [2020-09-25 03:26:48,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d2091dd3e/43697850dcf5492897ba7cee0001d212 [2020-09-25 03:26:48,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:26:48,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:26:48,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:26:48,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:26:48,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:26:48,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:26:48" (1/1) ... [2020-09-25 03:26:48,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39032048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:48, skipping insertion in model container [2020-09-25 03:26:48,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:26:48" (1/1) ... [2020-09-25 03:26:48,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:26:48,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:26:49,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:26:49,196 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:26:49,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:26:49,234 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:26:49,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49 WrapperNode [2020-09-25 03:26:49,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:26:49,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:26:49,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:26:49,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:26:49,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... [2020-09-25 03:26:49,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... [2020-09-25 03:26:49,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... [2020-09-25 03:26:49,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... [2020-09-25 03:26:49,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... [2020-09-25 03:26:49,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... [2020-09-25 03:26:49,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... [2020-09-25 03:26:49,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:26:49,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:26:49,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:26:49,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:26:49,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:26:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:26:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:26:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 03:26:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 03:26:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:26:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:26:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:26:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 03:26:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 03:26:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:26:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 03:26:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:26:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:26:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:26:49,661 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:26:49,662 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 03:26:49,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:26:49 BoogieIcfgContainer [2020-09-25 03:26:49,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:26:49,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:26:49,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:26:49,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:26:49,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:26:48" (1/3) ... [2020-09-25 03:26:49,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bedb13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:26:49, skipping insertion in model container [2020-09-25 03:26:49,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:26:49" (2/3) ... [2020-09-25 03:26:49,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bedb13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:26:49, skipping insertion in model container [2020-09-25 03:26:49,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:26:49" (3/3) ... [2020-09-25 03:26:49,681 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_02-2.c [2020-09-25 03:26:49,693 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:26:49,704 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:26:49,729 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:26:49,777 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:26:49,778 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:26:49,778 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:26:49,778 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:26:49,778 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:26:49,779 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:26:49,779 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:26:49,779 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:26:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-09-25 03:26:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 03:26:49,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:26:49,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:26:49,814 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:26:49,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:26:49,820 INFO L82 PathProgramCache]: Analyzing trace with hash 664980376, now seen corresponding path program 1 times [2020-09-25 03:26:49,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:26:49,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57738486] [2020-09-25 03:26:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:26:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:26:49,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:26:50,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:26:50,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 03:26:50,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:26:50,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 03:26:50,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:26:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:26:50,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:26:50,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:26:50,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:26:50,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:26:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:26:50,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:26:50,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:26:50,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:26:50,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:26:50,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:26:50,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:26:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:26:50,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:26:50,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:26:50,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:26:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:26:50,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57738486] [2020-09-25 03:26:50,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:26:50,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-25 03:26:50,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801815161] [2020-09-25 03:26:50,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-25 03:26:50,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:26:50,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-25 03:26:50,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 03:26:50,088 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-09-25 03:26:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:26:50,113 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-09-25 03:26:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-25 03:26:50,115 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-09-25 03:26:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:26:50,123 INFO L225 Difference]: With dead ends: 55 [2020-09-25 03:26:50,124 INFO L226 Difference]: Without dead ends: 32 [2020-09-25 03:26:50,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 03:26:50,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-25 03:26:50,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-25 03:26:50,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-25 03:26:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-09-25 03:26:50,168 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 19 [2020-09-25 03:26:50,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:26:50,169 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-09-25 03:26:50,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-25 03:26:50,169 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-09-25 03:26:50,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 03:26:50,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:26:50,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:26:50,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:26:50,171 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:26:50,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:26:50,172 INFO L82 PathProgramCache]: Analyzing trace with hash 645586435, now seen corresponding path program 1 times [2020-09-25 03:26:50,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:26:50,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032772690] [2020-09-25 03:26:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:26:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:26:50,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:26:50,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:26:50,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 03:26:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:26:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 03:26:50,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:26:50,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:26:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 03:26:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:26:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:26:50,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:26:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:26:50,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:26:50,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:26:50,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:26:50,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:26:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:26:50,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:26:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:26:50,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:26:50,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:26:50,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:26:50,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:26:50,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032772690] [2020-09-25 03:26:50,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:26:50,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:26:50,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277555607] [2020-09-25 03:26:50,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:26:50,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:26:50,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:26:50,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:26:50,495 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 5 states. [2020-09-25 03:26:50,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:26:50,576 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-09-25 03:26:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:26:50,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-25 03:26:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:26:50,578 INFO L225 Difference]: With dead ends: 32 [2020-09-25 03:26:50,578 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:26:50,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:26:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:26:50,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:26:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:26:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:26:50,581 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-25 03:26:50,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:26:50,581 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:26:50,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:26:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:26:50,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:26:50,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:26:50,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:26:50,634 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 03:26:50,635 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:26:50,635 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:26:50,635 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:26:50,636 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:26:50,636 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:26:50,636 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-09-25 03:26:50,636 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 03:26:50,636 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 03:26:50,637 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-09-25 03:26:50,637 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-09-25 03:26:50,637 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 03:26:50,637 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 03:26:50,637 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 03:26:50,637 INFO L268 CegarLoopResult]: For program point L27(lines 27 32) no Hoare annotation was computed. [2020-09-25 03:26:50,638 INFO L271 CegarLoopResult]: At program point L27-2(lines 24 33) the Hoare annotation is: true [2020-09-25 03:26:50,638 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 38) no Hoare annotation was computed. [2020-09-25 03:26:50,638 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 03:26:50,638 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 03:26:50,638 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 03:26:50,638 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 03:26:50,639 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 03:26:50,639 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 03:26:50,639 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-25 03:26:50,639 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-25 03:26:50,639 INFO L264 CegarLoopResult]: At program point L24-2(lines 24 33) the Hoare annotation is: (or (<= main_~z~0 100) (< 99 main_~x~0)) [2020-09-25 03:26:50,640 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 03:26:50,640 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-25 03:26:50,640 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 03:26:50,640 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 03:26:50,640 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 38) no Hoare annotation was computed. [2020-09-25 03:26:50,640 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 03:26:50,641 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 38) the Hoare annotation is: true [2020-09-25 03:26:50,641 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 03:26:50,641 INFO L268 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-09-25 03:26:50,641 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 03:26:50,641 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-25 03:26:50,642 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 03:26:50,642 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-25 03:26:50,642 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 03:26:50,642 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 03:26:50,642 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-25 03:26:50,642 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-09-25 03:26:50,643 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 7 12) no Hoare annotation was computed. [2020-09-25 03:26:50,643 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 03:26:50,643 INFO L268 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-09-25 03:26:50,643 INFO L268 CegarLoopResult]: For program point L8-2(lines 7 12) no Hoare annotation was computed. [2020-09-25 03:26:50,643 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-09-25 03:26:50,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:26:50 BoogieIcfgContainer [2020-09-25 03:26:50,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:26:50,660 INFO L168 Benchmark]: Toolchain (without parser) took 1737.80 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 103.5 MB in the beginning and 119.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:50,661 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:26:50,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.87 ms. Allocated memory is still 141.6 MB. Free memory was 102.9 MB in the beginning and 93.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:50,663 INFO L168 Benchmark]: Boogie Preprocessor took 111.98 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 182.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:50,664 INFO L168 Benchmark]: RCFGBuilder took 320.44 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 168.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:50,665 INFO L168 Benchmark]: TraceAbstraction took 986.26 ms. Allocated memory is still 204.5 MB. Free memory was 168.0 MB in the beginning and 119.1 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2020-09-25 03:26:50,669 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 309.87 ms. Allocated memory is still 141.6 MB. Free memory was 102.9 MB in the beginning and 93.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.98 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 182.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 320.44 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 168.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 986.26 ms. Allocated memory is still 204.5 MB. Free memory was 168.0 MB in the beginning and 119.1 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 1 SDslu, 75 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...