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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:05:47,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:05:47,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:05:47,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:05:47,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:05:47,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:05:47,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:05:47,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:05:47,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:05:47,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:05:47,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:05:47,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:05:47,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:05:47,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:05:47,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:05:47,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:05:47,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:05:47,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:05:47,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:05:47,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:05:47,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:05:47,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:05:47,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:05:47,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:05:47,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:05:47,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:05:47,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:05:47,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:05:47,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:05:47,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:05:47,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:05:47,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:05:47,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:05:47,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:05:47,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:05:47,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:05:47,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:05:47,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:05:47,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:05:47,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:05:47,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:05:47,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:05:47,780 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:05:47,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:05:47,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:05:47,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:05:47,782 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:05:47,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:05:47,783 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:05:47,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:05:47,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:05:47,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:05:47,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:05:47,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:05:47,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:05:47,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:05:47,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:05:47,786 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:05:47,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:05:47,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:05:47,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:05:47,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:05:47,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:05:47,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:47,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:05:47,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:05:47,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:05:47,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:05:47,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:05:47,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:05:47,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:05:48,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:05:48,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:05:48,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:05:48,086 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:05:48,086 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:05:48,087 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2019-10-13 21:05:48,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdabc77f/3e6f8879ccc14f73a54f09892dd4896a/FLAGd3910efda [2019-10-13 21:05:48,675 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:05:48,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2019-10-13 21:05:48,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdabc77f/3e6f8879ccc14f73a54f09892dd4896a/FLAGd3910efda [2019-10-13 21:05:48,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdabc77f/3e6f8879ccc14f73a54f09892dd4896a [2019-10-13 21:05:48,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:05:48,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:05:48,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:48,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:05:49,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:05:49,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:48" (1/1) ... [2019-10-13 21:05:49,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20022b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49, skipping insertion in model container [2019-10-13 21:05:49,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:48" (1/1) ... [2019-10-13 21:05:49,013 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:05:49,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:05:49,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:49,482 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:05:49,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:49,599 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:05:49,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49 WrapperNode [2019-10-13 21:05:49,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:49,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:05:49,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:05:49,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:05:49,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... [2019-10-13 21:05:49,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... [2019-10-13 21:05:49,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... [2019-10-13 21:05:49,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... [2019-10-13 21:05:49,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... [2019-10-13 21:05:49,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... [2019-10-13 21:05:49,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... [2019-10-13 21:05:49,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:05:49,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:05:49,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:05:49,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:05:49,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-13 21:05:49,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:05:49,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:05:49,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:05:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:05:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-10-13 21:05:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-13 21:05:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:05:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:05:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:05:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:05:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:05:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:05:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:05:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:05:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:05:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:05:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:05:50,866 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:05:50,866 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 21:05:50,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:50 BoogieIcfgContainer [2019-10-13 21:05:50,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:05:50,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:05:50,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:05:50,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:05:50,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:05:48" (1/3) ... [2019-10-13 21:05:50,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187d1104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:50, skipping insertion in model container [2019-10-13 21:05:50,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:49" (2/3) ... [2019-10-13 21:05:50,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187d1104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:50, skipping insertion in model container [2019-10-13 21:05:50,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:50" (3/3) ... [2019-10-13 21:05:50,876 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2019-10-13 21:05:50,886 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:05:50,895 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:05:50,908 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:05:50,935 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:05:50,936 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:05:50,936 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:05:50,936 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:05:50,936 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:05:50,937 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:05:50,937 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:05:50,937 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:05:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-10-13 21:05:50,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-13 21:05:50,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:50,965 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:50,967 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:50,972 INFO L82 PathProgramCache]: Analyzing trace with hash 377540282, now seen corresponding path program 1 times [2019-10-13 21:05:50,981 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:50,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937422642] [2019-10-13 21:05:50,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:50,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:50,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:52,087 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937422642] [2019-10-13 21:05:52,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:52,089 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:05:52,089 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072789300] [2019-10-13 21:05:52,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:05:52,099 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:52,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:05:52,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:05:52,118 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 19 states. [2019-10-13 21:05:53,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:53,262 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2019-10-13 21:05:53,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:05:53,264 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 48 [2019-10-13 21:05:53,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:53,277 INFO L225 Difference]: With dead ends: 92 [2019-10-13 21:05:53,277 INFO L226 Difference]: Without dead ends: 57 [2019-10-13 21:05:53,281 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:05:53,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-13 21:05:53,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2019-10-13 21:05:53,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-10-13 21:05:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2019-10-13 21:05:53,327 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2019-10-13 21:05:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:53,328 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2019-10-13 21:05:53,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:05:53,328 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2019-10-13 21:05:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 21:05:53,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:53,330 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:53,331 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:53,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:53,331 INFO L82 PathProgramCache]: Analyzing trace with hash -849330057, now seen corresponding path program 1 times [2019-10-13 21:05:53,332 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:53,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555398306] [2019-10-13 21:05:53,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:53,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:53,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:53,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555398306] [2019-10-13 21:05:53,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748939763] [2019-10-13 21:05:53,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:54,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 21:05:54,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:05:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:54,239 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:05:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:55,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1247938563] [2019-10-13 21:05:55,317 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 54 [2019-10-13 21:05:55,368 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:05:55,369 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:05:55,436 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:05:55,438 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 47 root evaluator evaluations with a maximum evaluation depth of 0. Performed 47 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 76 variables. [2019-10-13 21:05:55,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:55,443 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:05:55,484 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-13 21:05:55,485 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:05:55,487 INFO L553 sIntCurrentIteration]: We unified 52 AI predicates to 52 [2019-10-13 21:05:55,488 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:05:55,488 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:05:55,489 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [20, 14, 14] total 33 [2019-10-13 21:05:55,489 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44122797] [2019-10-13 21:05:55,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:05:55,492 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:55,492 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:05:55,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:05:55,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:55,493 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 2 states. [2019-10-13 21:05:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:55,495 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2019-10-13 21:05:55,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:05:55,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 53 [2019-10-13 21:05:55,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:55,496 INFO L225 Difference]: With dead ends: 54 [2019-10-13 21:05:55,496 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:05:55,498 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:55,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:05:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:05:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:05:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:05:55,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2019-10-13 21:05:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:55,499 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:05:55,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:05:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:05:55,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:05:55,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:55,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:05:55,726 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:55,726 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:55,727 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:55,727 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:55,727 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-13 21:05:55,727 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:55,728 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:55,728 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 134 634) no Hoare annotation was computed. [2019-10-13 21:05:55,728 INFO L443 ceAbstractionStarter]: For program point L275(lines 275 568) no Hoare annotation was computed. [2019-10-13 21:05:55,728 INFO L443 ceAbstractionStarter]: For program point L242(lines 242 586) no Hoare annotation was computed. [2019-10-13 21:05:55,728 INFO L443 ceAbstractionStarter]: For program point L465(line 465) no Hoare annotation was computed. [2019-10-13 21:05:55,728 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 465) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 592) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point L284(lines 284 563) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point L301(lines 301 551) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 569) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point L260(lines 260 575) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point L310(lines 310 546) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 134 634) no Hoare annotation was computed. [2019-10-13 21:05:55,729 INFO L443 ceAbstractionStarter]: For program point L327(lines 327 534) no Hoare annotation was computed. [2019-10-13 21:05:55,730 INFO L443 ceAbstractionStarter]: For program point L294(lines 294 552) no Hoare annotation was computed. [2019-10-13 21:05:55,730 INFO L443 ceAbstractionStarter]: For program point L162(lines 162 633) no Hoare annotation was computed. [2019-10-13 21:05:55,730 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 558) no Hoare annotation was computed. [2019-10-13 21:05:55,730 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 134 634) the Hoare annotation is: true [2019-10-13 21:05:55,730 INFO L443 ceAbstractionStarter]: For program point L336(lines 336 529) no Hoare annotation was computed. [2019-10-13 21:05:55,730 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 517) no Hoare annotation was computed. [2019-10-13 21:05:55,731 INFO L443 ceAbstractionStarter]: For program point L320(lines 320 535) no Hoare annotation was computed. [2019-10-13 21:05:55,731 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 541) no Hoare annotation was computed. [2019-10-13 21:05:55,731 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 631) no Hoare annotation was computed. [2019-10-13 21:05:55,731 INFO L443 ceAbstractionStarter]: For program point L362(lines 362 512) no Hoare annotation was computed. [2019-10-13 21:05:55,731 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 619) no Hoare annotation was computed. [2019-10-13 21:05:55,731 INFO L443 ceAbstractionStarter]: For program point L379(lines 379 500) no Hoare annotation was computed. [2019-10-13 21:05:55,732 INFO L443 ceAbstractionStarter]: For program point L346(lines 346 518) no Hoare annotation was computed. [2019-10-13 21:05:55,732 INFO L443 ceAbstractionStarter]: For program point L338(lines 338 524) no Hoare annotation was computed. [2019-10-13 21:05:55,732 INFO L443 ceAbstractionStarter]: For program point L206(lines 206 614) no Hoare annotation was computed. [2019-10-13 21:05:55,732 INFO L443 ceAbstractionStarter]: For program point L421(lines 421 478) no Hoare annotation was computed. [2019-10-13 21:05:55,732 INFO L443 ceAbstractionStarter]: For program point L388(lines 388 495) no Hoare annotation was computed. [2019-10-13 21:05:55,732 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 602) no Hoare annotation was computed. [2019-10-13 21:05:55,732 INFO L443 ceAbstractionStarter]: For program point L190(lines 190 620) no Hoare annotation was computed. [2019-10-13 21:05:55,733 INFO L446 ceAbstractionStarter]: At program point L446(lines 406 479) the Hoare annotation is: true [2019-10-13 21:05:55,733 INFO L443 ceAbstractionStarter]: For program point L182(lines 182 626) no Hoare annotation was computed. [2019-10-13 21:05:55,733 INFO L443 ceAbstractionStarter]: For program point L438(lines 438 451) no Hoare annotation was computed. [2019-10-13 21:05:55,733 INFO L443 ceAbstractionStarter]: For program point L405(lines 405 483) no Hoare annotation was computed. [2019-10-13 21:05:55,733 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 501) no Hoare annotation was computed. [2019-10-13 21:05:55,733 INFO L443 ceAbstractionStarter]: For program point L463(lines 463 471) no Hoare annotation was computed. [2019-10-13 21:05:55,734 INFO L443 ceAbstractionStarter]: For program point L364(lines 364 507) no Hoare annotation was computed. [2019-10-13 21:05:55,734 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 597) no Hoare annotation was computed. [2019-10-13 21:05:55,734 INFO L443 ceAbstractionStarter]: For program point L249(lines 249 585) no Hoare annotation was computed. [2019-10-13 21:05:55,734 INFO L443 ceAbstractionStarter]: For program point L216(lines 216 603) no Hoare annotation was computed. [2019-10-13 21:05:55,734 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 609) no Hoare annotation was computed. [2019-10-13 21:05:55,734 INFO L443 ceAbstractionStarter]: For program point L431(lines 431 452) no Hoare annotation was computed. [2019-10-13 21:05:55,734 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 484) no Hoare annotation was computed. [2019-10-13 21:05:55,735 INFO L443 ceAbstractionStarter]: For program point L423(lines 423 473) no Hoare annotation was computed. [2019-10-13 21:05:55,735 INFO L443 ceAbstractionStarter]: For program point L390(lines 390 490) no Hoare annotation was computed. [2019-10-13 21:05:55,735 INFO L443 ceAbstractionStarter]: For program point L258(lines 258 580) no Hoare annotation was computed. [2019-10-13 21:05:55,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:05:55 BoogieIcfgContainer [2019-10-13 21:05:55,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:05:55,747 INFO L168 Benchmark]: Toolchain (without parser) took 6749.53 ms. Allocated memory was 136.3 MB in the beginning and 296.2 MB in the end (delta: 159.9 MB). Free memory was 98.6 MB in the beginning and 232.0 MB in the end (delta: -133.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:55,748 INFO L168 Benchmark]: CDTParser took 1.12 ms. Allocated memory is still 136.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:05:55,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.61 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 98.4 MB in the beginning and 169.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:55,750 INFO L168 Benchmark]: Boogie Preprocessor took 95.86 ms. Allocated memory is still 200.8 MB. Free memory was 169.5 MB in the beginning and 164.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:55,751 INFO L168 Benchmark]: RCFGBuilder took 1171.39 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 164.3 MB in the beginning and 180.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:55,752 INFO L168 Benchmark]: TraceAbstraction took 4875.09 ms. Allocated memory was 230.2 MB in the beginning and 296.2 MB in the end (delta: 66.1 MB). Free memory was 180.6 MB in the beginning and 232.0 MB in the end (delta: -51.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:55,756 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12 ms. Allocated memory is still 136.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 602.61 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 98.4 MB in the beginning and 169.5 MB in the end (delta: -71.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.86 ms. Allocated memory is still 200.8 MB. Free memory was 169.5 MB in the beginning and 164.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1171.39 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 164.3 MB in the beginning and 180.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4875.09 ms. Allocated memory was 230.2 MB in the beginning and 296.2 MB in the end (delta: 66.1 MB). Free memory was 180.6 MB in the beginning and 232.0 MB in the end (delta: -51.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 465]: 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: 406]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 4.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 93 SDslu, 737 SDs, 0 SdLazy, 743 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 67438 SizeOfPredicates, 2 NumberOfNonLiveVariables, 820 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 126, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 6.211538461538462, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...