/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=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-crafted-1/sumt7.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 22:19:37,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 22:19:37,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 22:19:37,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 22:19:37,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:19:37,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:19:37,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:19:37,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:19:37,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:19:37,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:19:37,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:19:37,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:19:37,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:19:37,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:19:37,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:19:37,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:19:37,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:19:37,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:19:37,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:19:37,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:19:37,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:19:37,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:19:37,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:19:37,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:19:37,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 22:19:37,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:19:37,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:19:37,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:19:37,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 22:19:37,801 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:19:37,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:19:37,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:19:37,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:19:37,804 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:19:37,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:19:37,804 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 22:19:37,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:19:37,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 22:19:37,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:19:37,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:19:37,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:19:37,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:19:37,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 22:19:37,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:19:37,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:19:37,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:19:37,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:19:37,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:19:37,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:19:37,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:19:37,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:19:37,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:19:37,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:19:37,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:19:37,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:19:37,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:19:37,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:19:37,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:19:37,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> 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 -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-21 22:19:38,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:19:38,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:19:38,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:19:38,134 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:19:38,134 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:19:38,135 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt7.c [2020-08-21 22:19:38,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24d96f599/bbcbf6c3f01443579022f80bd47ac686/FLAGcc4bdadc8 [2020-08-21 22:19:38,581 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:19:38,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt7.c [2020-08-21 22:19:38,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24d96f599/bbcbf6c3f01443579022f80bd47ac686/FLAGcc4bdadc8 [2020-08-21 22:19:38,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/24d96f599/bbcbf6c3f01443579022f80bd47ac686 [2020-08-21 22:19:38,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:19:38,969 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:19:38,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:19:38,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:19:38,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:19:38,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:19:38" (1/1) ... [2020-08-21 22:19:38,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:38, skipping insertion in model container [2020-08-21 22:19:38,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:19:38" (1/1) ... [2020-08-21 22:19:38,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:19:39,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:19:39,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:19:39,260 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:19:39,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:19:39,319 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:19:39,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39 WrapperNode [2020-08-21 22:19:39,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:19:39,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:19:39,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:19:39,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:19:39,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... [2020-08-21 22:19:39,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... [2020-08-21 22:19:39,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... [2020-08-21 22:19:39,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... [2020-08-21 22:19:39,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... [2020-08-21 22:19:39,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... [2020-08-21 22:19:39,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... [2020-08-21 22:19:39,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:19:39,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:19:39,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:19:39,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:19:39,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:19:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:19:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:19:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 22:19:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 22:19:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:19:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:19:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 22:19:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 22:19:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 22:19:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 22:19:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:19:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:19:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:19:39,833 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:19:39,833 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 22:19:39,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:19:39 BoogieIcfgContainer [2020-08-21 22:19:39,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:19:39,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:19:39,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:19:39,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:19:39,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:19:38" (1/3) ... [2020-08-21 22:19:39,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fcfe913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:19:39, skipping insertion in model container [2020-08-21 22:19:39,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:19:39" (2/3) ... [2020-08-21 22:19:39,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fcfe913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:19:39, skipping insertion in model container [2020-08-21 22:19:39,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:19:39" (3/3) ... [2020-08-21 22:19:39,847 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt7.c [2020-08-21 22:19:39,859 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:19:39,867 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:19:39,882 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:19:39,915 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:19:39,916 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:19:39,916 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:19:39,916 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:19:39,916 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:19:39,916 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:19:39,917 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:19:39,917 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:19:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-08-21 22:19:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 22:19:39,943 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:19:39,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 22:19:39,944 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:19:39,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:19:39,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1473118151, now seen corresponding path program 1 times [2020-08-21 22:19:39,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:19:39,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095729721] [2020-08-21 22:19:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:19:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:19:40,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:19:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:19:40,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:19:40,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095729721] [2020-08-21 22:19:40,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:19:40,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 22:19:40,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45446001] [2020-08-21 22:19:40,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 22:19:40,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:19:40,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 22:19:40,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 22:19:40,531 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 8 states. [2020-08-21 22:19:40,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:19:40,796 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2020-08-21 22:19:40,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 22:19:40,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-08-21 22:19:40,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:19:40,806 INFO L225 Difference]: With dead ends: 45 [2020-08-21 22:19:40,807 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 22:19:40,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-08-21 22:19:40,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 22:19:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 22:19:40,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 22:19:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 22:19:40,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-08-21 22:19:40,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:19:40,844 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 22:19:40,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 22:19:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 22:19:40,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 22:19:40,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:19:40,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 22:19:40,911 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:19:40,911 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-08-21 22:19:40,912 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:19:40,912 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 22:19:40,912 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 22:19:40,912 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 22:19:40,912 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 22:19:40,913 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-21 22:19:40,913 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-21 22:19:40,913 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-21 22:19:40,913 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-21 22:19:40,913 INFO L268 CegarLoopResult]: For program point L31(lines 31 34) no Hoare annotation was computed. [2020-08-21 22:19:40,913 INFO L268 CegarLoopResult]: For program point L29(lines 29 34) no Hoare annotation was computed. [2020-08-21 22:19:40,914 INFO L268 CegarLoopResult]: For program point L31-2(lines 21 34) no Hoare annotation was computed. [2020-08-21 22:19:40,914 INFO L268 CegarLoopResult]: For program point L27(lines 27 34) no Hoare annotation was computed. [2020-08-21 22:19:40,914 INFO L268 CegarLoopResult]: For program point L25(lines 25 34) no Hoare annotation was computed. [2020-08-21 22:19:40,914 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 39) no Hoare annotation was computed. [2020-08-21 22:19:40,914 INFO L268 CegarLoopResult]: For program point L23(lines 23 34) no Hoare annotation was computed. [2020-08-21 22:19:40,915 INFO L268 CegarLoopResult]: For program point L21(lines 21 34) no Hoare annotation was computed. [2020-08-21 22:19:40,915 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 37) no Hoare annotation was computed. [2020-08-21 22:19:40,915 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 39) no Hoare annotation was computed. [2020-08-21 22:19:40,915 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-08-21 22:19:40,916 INFO L264 CegarLoopResult]: At program point L36-1(lines 19 37) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v1~0 main_~v2~0 main_~v3~0 main_~v4~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-08-21 22:19:40,916 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 39) the Hoare annotation is: true [2020-08-21 22:19:40,916 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-08-21 22:19:40,916 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-21 22:19:40,916 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-21 22:19:40,917 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-21 22:19:40,917 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-21 22:19:40,917 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-21 22:19:40,917 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-21 22:19:40,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 10:19:40 BoogieIcfgContainer [2020-08-21 22:19:40,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 22:19:40,941 INFO L168 Benchmark]: Toolchain (without parser) took 1970.34 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 105.1 MB in the beginning and 101.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2020-08-21 22:19:40,942 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-21 22:19:40,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.51 ms. Allocated memory is still 148.9 MB. Free memory was 104.6 MB in the beginning and 94.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-21 22:19:40,944 INFO L168 Benchmark]: Boogie Preprocessor took 145.22 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 94.7 MB in the beginning and 183.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-08-21 22:19:40,945 INFO L168 Benchmark]: RCFGBuilder took 371.63 ms. Allocated memory is still 205.0 MB. Free memory was 183.1 MB in the beginning and 167.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-08-21 22:19:40,947 INFO L168 Benchmark]: TraceAbstraction took 1097.15 ms. Allocated memory is still 205.0 MB. Free memory was 167.2 MB in the beginning and 101.7 MB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 7.1 GB. [2020-08-21 22:19:40,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.51 ms. Allocated memory is still 148.9 MB. Free memory was 104.6 MB in the beginning and 94.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.22 ms. Allocated memory was 148.9 MB in the beginning and 205.0 MB in the end (delta: 56.1 MB). Free memory was 94.7 MB in the beginning and 183.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.63 ms. Allocated memory is still 205.0 MB. Free memory was 183.1 MB in the beginning and 167.8 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1097.15 ms. Allocated memory is still 205.0 MB. Free memory was 167.2 MB in the beginning and 101.7 MB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 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 + v1 + v2 + v3 + v4 && i + j + k + v1 + v2 + v3 + v4 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 31 SDslu, 42 SDs, 0 SdLazy, 101 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 49 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 2236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...