/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=LOWLEXORDER --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-crafted-1/sumt5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:52:40,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:52:40,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:52:40,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:52:40,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:52:40,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:52:40,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:52:40,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:52:40,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:52:40,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:52:40,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:52:40,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:52:40,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:52:40,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:52:40,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:52:40,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:52:40,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:52:40,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:52:40,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:52:40,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:52:40,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:52:40,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:52:40,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:52:40,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:52:40,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:52:40,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:52:40,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:52:40,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:52:40,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:52:40,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:52:40,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:52:40,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:52:40,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:52:40,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:52:40,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:52:40,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:52:40,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:52:40,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:52:40,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:52:40,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:52:40,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:52:40,764 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 [2020-09-24 21:52:40,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:52:40,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:52:40,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:52:40,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:52:40,824 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:52:40,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:52:40,824 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:52:40,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:52:40,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:52:40,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:52:40,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:52:40,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:52:40,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:52:40,827 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:52:40,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:52:40,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:52:40,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:52:40,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:52:40,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:52:40,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:52:40,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:52:40,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:52:40,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:52:40,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:52:40,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:52:40,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:52:40,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:52:40,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:52:40,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:52:40,830 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:52:41,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:52:41,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:52:41,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:52:41,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:52:41,368 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:52:41,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt5.c [2020-09-24 21:52:41,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f9e0934c/29f9d7a72a584639ad733d04af9423c4/FLAG8ba27fed2 [2020-09-24 21:52:41,945 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:52:41,947 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt5.c [2020-09-24 21:52:41,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f9e0934c/29f9d7a72a584639ad733d04af9423c4/FLAG8ba27fed2 [2020-09-24 21:52:42,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f9e0934c/29f9d7a72a584639ad733d04af9423c4 [2020-09-24 21:52:42,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:52:42,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:52:42,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:52:42,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:52:42,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:52:42,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5728a2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42, skipping insertion in model container [2020-09-24 21:52:42,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:52:42,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:52:42,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:52:42,678 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:52:42,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:52:42,717 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:52:42,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42 WrapperNode [2020-09-24 21:52:42,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:52:42,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:52:42,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:52:42,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:52:42,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (1/1) ... [2020-09-24 21:52:42,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:52:42,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:52:42,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:52:42,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:52:42,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (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 [2020-09-24 21:52:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:52:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:52:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:52:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:52:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:52:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:52:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:52:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:52:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:52:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:52:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:52:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:52:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:52:43,247 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:52:43,247 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:52:43,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:52:43 BoogieIcfgContainer [2020-09-24 21:52:43,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:52:43,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:52:43,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:52:43,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:52:43,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:52:42" (1/3) ... [2020-09-24 21:52:43,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86c726b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:52:43, skipping insertion in model container [2020-09-24 21:52:43,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:42" (2/3) ... [2020-09-24 21:52:43,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86c726b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:52:43, skipping insertion in model container [2020-09-24 21:52:43,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:52:43" (3/3) ... [2020-09-24 21:52:43,264 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt5.c [2020-09-24 21:52:43,275 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:52:43,285 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:52:43,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:52:43,334 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:52:43,334 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:52:43,334 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:52:43,334 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:52:43,335 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:52:43,335 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:52:43,335 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:52:43,335 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:52:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-09-24 21:52:43,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 21:52:43,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:52:43,365 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] [2020-09-24 21:52:43,365 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:52:43,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:52:43,372 INFO L82 PathProgramCache]: Analyzing trace with hash -687260303, now seen corresponding path program 1 times [2020-09-24 21:52:43,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:52:43,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409419288] [2020-09-24 21:52:43,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:52:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:43,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:43,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:43,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:43,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:52:43,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:52:43,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-09-24 21:52:43,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:52:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 21:52:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 21:52:43,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:52:44,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:52:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:44,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:44,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:44,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:52:44,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:52:44,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:52:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:52:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:52:44,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:52:44,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:52:44,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409419288] [2020-09-24 21:52:44,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:52:44,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:52:44,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442357210] [2020-09-24 21:52:44,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:52:44,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:52:44,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:52:44,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:52:44,442 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 11 states. [2020-09-24 21:52:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:52:45,183 INFO L93 Difference]: Finished difference Result 120 states and 163 transitions. [2020-09-24 21:52:45,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 21:52:45,186 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-24 21:52:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:52:45,200 INFO L225 Difference]: With dead ends: 120 [2020-09-24 21:52:45,200 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 21:52:45,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2020-09-24 21:52:45,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 21:52:45,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 34. [2020-09-24 21:52:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 21:52:45,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-09-24 21:52:45,264 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 21 [2020-09-24 21:52:45,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:52:45,265 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-09-24 21:52:45,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:52:45,265 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-09-24 21:52:45,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-24 21:52:45,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:52:45,266 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] [2020-09-24 21:52:45,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:52:45,267 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:52:45,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:52:45,268 INFO L82 PathProgramCache]: Analyzing trace with hash -805340680, now seen corresponding path program 1 times [2020-09-24 21:52:45,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:52:45,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941627368] [2020-09-24 21:52:45,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:52:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:45,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:45,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:45,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 21:52:45,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:45,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-09-24 21:52:45,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:45,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:52:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 21:52:45,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 21:52:45,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:52:46,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:52:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:46,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:46,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:46,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:52:46,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:46,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:52:46,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:46,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:52:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:52:46,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:52:46,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:52:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:52:46,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941627368] [2020-09-24 21:52:46,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:52:46,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 21:52:46,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193348247] [2020-09-24 21:52:46,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 21:52:46,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:52:46,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 21:52:46,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:52:46,280 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 13 states. [2020-09-24 21:52:49,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:52:49,049 INFO L93 Difference]: Finished difference Result 72 states and 90 transitions. [2020-09-24 21:52:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:52:49,051 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-09-24 21:52:49,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:52:49,053 INFO L225 Difference]: With dead ends: 72 [2020-09-24 21:52:49,053 INFO L226 Difference]: Without dead ends: 67 [2020-09-24 21:52:49,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:52:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-24 21:52:49,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 37. [2020-09-24 21:52:49,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-24 21:52:49,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-09-24 21:52:49,065 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 25 [2020-09-24 21:52:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:52:49,066 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-09-24 21:52:49,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 21:52:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-09-24 21:52:49,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 21:52:49,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:52:49,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:52:49,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:52:49,068 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:52:49,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:52:49,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1490056162, now seen corresponding path program 2 times [2020-09-24 21:52:49,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:52:49,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815019167] [2020-09-24 21:52:49,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:52:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:49,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:49,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:49,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:49,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:49,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:52:49,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:52:49,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-09-24 21:52:49,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:49,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 21:52:49,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 21:52:49,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 21:52:49,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:52:50,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:52:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:50,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:50,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:50,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:52:50,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:52:50,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:52:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:52:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:52:50,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:52:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 21:52:50,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815019167] [2020-09-24 21:52:50,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:52:50,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 21:52:50,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012842620] [2020-09-24 21:52:50,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 21:52:50,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:52:50,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 21:52:50,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:52:50,188 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 13 states. [2020-09-24 21:52:51,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:52:51,025 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2020-09-24 21:52:51,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 21:52:51,025 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2020-09-24 21:52:51,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:52:51,026 INFO L225 Difference]: With dead ends: 73 [2020-09-24 21:52:51,026 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:52:51,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=689, Unknown=0, NotChecked=0, Total=870 [2020-09-24 21:52:51,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:52:51,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:52:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:52:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:52:51,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-24 21:52:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:52:51,032 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:52:51,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 21:52:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:52:51,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:52:51,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:52:51,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:52:51,376 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-09-24 21:52:51,380 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:52:51,381 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-09-24 21:52:51,381 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:52:51,381 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:52:51,382 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:52:51,382 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:52:51,382 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:52:51,382 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:52:51,382 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:52:51,382 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 21:52:51,383 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 21:52:51,383 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:52:51,383 INFO L268 CegarLoopResult]: For program point L27(lines 27 30) no Hoare annotation was computed. [2020-09-24 21:52:51,383 INFO L268 CegarLoopResult]: For program point L27-2(lines 21 30) no Hoare annotation was computed. [2020-09-24 21:52:51,383 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 35) no Hoare annotation was computed. [2020-09-24 21:52:51,383 INFO L268 CegarLoopResult]: For program point L23(lines 23 30) no Hoare annotation was computed. [2020-09-24 21:52:51,384 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 32) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-09-24 21:52:51,386 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 32) the Hoare annotation is: (let ((.cse12 (+ main_~i~0 main_~k~0)) (.cse10 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0))) (let ((.cse2 (<= .cse10 main_~l~0)) (.cse0 (<= 0 .cse12)) (.cse9 (div .cse10 4294967296)) (.cse8 (div main_~l~0 4294967296)) (.cse3 (<= main_~i~0 0)) (.cse6 (<= 0 main_~i~0)) (.cse1 (+ main_~i~0 main_~j~0 main_~k~0)) (.cse7 (<= .cse12 0))) (or (let ((.cse5 (+ main_~l~0 (* 4294967296 .cse9))) (.cse4 (* 4294967296 .cse8))) (and .cse0 (<= 0 .cse1) .cse2 .cse3 (<= .cse1 0) (<= (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 .cse4) .cse5) .cse6 (< .cse5 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 .cse4 1)) .cse7)) (and (<= main_~l~0 .cse10) .cse2) (let ((.cse11 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0))) (and .cse0 (= (+ main_~l~0 (* .cse9 4294967296)) (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 (* .cse8 4294967296))) .cse3 (<= main_~l~0 .cse1) (<= main_~l~0 .cse11) .cse6 (<= .cse11 main_~l~0) (<= main_~l~0 0) (<= .cse1 main_~l~0) .cse7 (<= 0 main_~l~0)))))) [2020-09-24 21:52:51,386 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 21:52:51,386 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 21:52:51,386 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 21:52:51,387 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-24 21:52:51,387 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 21:52:51,387 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 21:52:51,387 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 21:52:51,387 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 21:52:51,387 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-24 21:52:51,388 INFO L268 CegarLoopResult]: For program point L25(lines 25 30) no Hoare annotation was computed. [2020-09-24 21:52:51,388 INFO L268 CegarLoopResult]: For program point L21(lines 21 30) no Hoare annotation was computed. [2020-09-24 21:52:51,388 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 21:52:51,388 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 21:52:51,388 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 21:52:51,392 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 35) no Hoare annotation was computed. [2020-09-24 21:52:51,393 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 21:52:51,393 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 35) the Hoare annotation is: true [2020-09-24 21:52:51,394 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 21:52:51,394 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 21:52:51,394 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 21:52:51,394 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 21:52:51,395 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 21:52:51,396 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 21:52:51,396 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 21:52:51,396 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 21:52:51,396 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 21:52:51,397 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 21:52:51,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:52:51 BoogieIcfgContainer [2020-09-24 21:52:51,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:52:51,458 INFO L168 Benchmark]: Toolchain (without parser) took 9132.90 ms. Allocated memory was 137.4 MB in the beginning and 289.9 MB in the end (delta: 152.6 MB). Free memory was 100.2 MB in the beginning and 163.3 MB in the end (delta: -63.1 MB). Peak memory consumption was 89.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:51,462 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 21:52:51,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.37 ms. Allocated memory is still 137.4 MB. Free memory was 99.6 MB in the beginning and 89.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:51,466 INFO L168 Benchmark]: Boogie Preprocessor took 113.12 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 89.8 MB in the beginning and 178.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:51,467 INFO L168 Benchmark]: RCFGBuilder took 420.73 ms. Allocated memory is still 199.8 MB. Free memory was 178.1 MB in the beginning and 162.2 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:51,468 INFO L168 Benchmark]: TraceAbstraction took 8195.01 ms. Allocated memory was 199.8 MB in the beginning and 289.9 MB in the end (delta: 90.2 MB). Free memory was 161.5 MB in the beginning and 166.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:51,476 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 385.37 ms. Allocated memory is still 137.4 MB. Free memory was 99.6 MB in the beginning and 89.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.12 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 89.8 MB in the beginning and 178.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 420.73 ms. Allocated memory is still 199.8 MB. Free memory was 178.1 MB in the beginning and 162.2 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8195.01 ms. Allocated memory was 199.8 MB in the beginning and 289.9 MB in the end (delta: 90.2 MB). Free memory was 161.5 MB in the beginning and 166.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 19]: Loop Invariant Derived loop invariant: l <= i + j + k + v3 + v4 && i + j + k + v3 + v4 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 607 SDslu, 177 SDs, 0 SdLazy, 795 SolverSat, 128 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 3 MinimizatonAttempts, 68 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 25 NumberOfFragments, 201 HoareAnnotationTreeSize, 13 FomulaSimplifications, 2609 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 24040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/7 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...