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+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:04:48,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:04:48,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:04:48,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:04:48,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:04:48,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:04:48,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:04:48,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:04:48,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:04:48,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:04:48,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:04:48,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:04:48,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:04:48,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:04:48,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:04:48,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:04:48,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:04:48,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:04:48,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:04:48,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:04:48,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:04:48,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:04:48,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:04:48,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:04:48,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:04:48,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:04:48,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:04:48,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:04:48,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:04:48,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:04:48,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:04:48,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:04:48,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:04:48,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:04:48,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:04:48,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:04:48,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:04:48,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:04:48,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:04:48,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:04:48,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:04:48,920 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 [2019-10-15 01:04:48,950 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:04:48,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:04:48,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:04:48,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:04:48,955 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:04:48,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:04:48,958 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:04:48,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:04:48,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:04:48,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:04:48,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:04:48,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:04:48,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:04:48,959 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:04:48,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:04:48,960 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:04:48,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:04:48,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:04:48,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:04:48,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:04:48,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:04:48,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:04:48,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:04:48,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:04:48,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:04:48,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:04:48,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:04:48,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:04:48,963 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 [2019-10-15 01:04:49,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:04:49,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:04:49,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:04:49,245 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:04:49,245 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:04:49,246 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2019-10-15 01:04:49,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d2b85ab/f09e9187dd9d40b6ad3e17fecac5e3ae/FLAGeb662fb47 [2019-10-15 01:04:49,776 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:04:49,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+cfa-reducer.c [2019-10-15 01:04:49,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d2b85ab/f09e9187dd9d40b6ad3e17fecac5e3ae/FLAGeb662fb47 [2019-10-15 01:04:50,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75d2b85ab/f09e9187dd9d40b6ad3e17fecac5e3ae [2019-10-15 01:04:50,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:04:50,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:04:50,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:04:50,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:04:50,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:04:50,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4264f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50, skipping insertion in model container [2019-10-15 01:04:50,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,209 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:04:50,239 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:04:50,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:04:50,623 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:04:50,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:04:50,730 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:04:50,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50 WrapperNode [2019-10-15 01:04:50,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:04:50,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:04:50,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:04:50,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:04:50,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (1/1) ... [2019-10-15 01:04:50,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:04:50,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:04:50,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:04:50,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:04:50,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (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 [2019-10-15 01:04:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:04:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:04:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:04:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:04:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-10-15 01:04:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-15 01:04:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:04:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:04:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:04:50,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:04:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:04:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:04:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:04:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:04:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:04:50,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:04:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:04:51,670 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:04:51,671 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:04:51,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:51 BoogieIcfgContainer [2019-10-15 01:04:51,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:04:51,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:04:51,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:04:51,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:04:51,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:04:50" (1/3) ... [2019-10-15 01:04:51,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f35f6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:04:51, skipping insertion in model container [2019-10-15 01:04:51,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:04:50" (2/3) ... [2019-10-15 01:04:51,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f35f6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:04:51, skipping insertion in model container [2019-10-15 01:04:51,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:51" (3/3) ... [2019-10-15 01:04:51,684 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+cfa-reducer.c [2019-10-15 01:04:51,694 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:04:51,702 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:04:51,714 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:04:51,738 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:04:51,738 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:04:51,738 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:04:51,739 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:04:51,739 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:04:51,739 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:04:51,739 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:04:51,739 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:04:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-15 01:04:51,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:04:51,757 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:04:51,758 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:04:51,760 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:04:51,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:51,767 INFO L82 PathProgramCache]: Analyzing trace with hash 316900320, now seen corresponding path program 1 times [2019-10-15 01:04:51,776 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:04:51,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477589690] [2019-10-15 01:04:51,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:51,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:51,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:04:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:52,180 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477589690] [2019-10-15 01:04:52,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:04:52,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:04:52,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996954338] [2019-10-15 01:04:52,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:04:52,189 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:04:52,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:04:52,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:04:52,206 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-10-15 01:04:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:04:52,294 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2019-10-15 01:04:52,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:04:52,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-15 01:04:52,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:04:52,307 INFO L225 Difference]: With dead ends: 46 [2019-10-15 01:04:52,308 INFO L226 Difference]: Without dead ends: 24 [2019-10-15 01:04:52,312 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:04:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-15 01:04:52,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2019-10-15 01:04:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-15 01:04:52,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-10-15 01:04:52,345 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-10-15 01:04:52,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:04:52,346 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-10-15 01:04:52,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:04:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-10-15 01:04:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 01:04:52,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:04:52,347 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:04:52,348 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:04:52,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:52,348 INFO L82 PathProgramCache]: Analyzing trace with hash 316483246, now seen corresponding path program 1 times [2019-10-15 01:04:52,348 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:04:52,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105511845] [2019-10-15 01:04:52,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:52,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:52,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:04:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:52,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105511845] [2019-10-15 01:04:52,456 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:04:52,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:04:52,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231301690] [2019-10-15 01:04:52,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:04:52,460 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:04:52,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:04:52,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:04:52,461 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2019-10-15 01:04:52,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:04:52,493 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2019-10-15 01:04:52,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:04:52,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-15 01:04:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:04:52,495 INFO L225 Difference]: With dead ends: 28 [2019-10-15 01:04:52,495 INFO L226 Difference]: Without dead ends: 26 [2019-10-15 01:04:52,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:04:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-15 01:04:52,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2019-10-15 01:04:52,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-15 01:04:52,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-10-15 01:04:52,501 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2019-10-15 01:04:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:04:52,501 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-10-15 01:04:52,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:04:52,502 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-10-15 01:04:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-15 01:04:52,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:04:52,503 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:04:52,503 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:04:52,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:52,503 INFO L82 PathProgramCache]: Analyzing trace with hash 625969832, now seen corresponding path program 1 times [2019-10-15 01:04:52,504 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:04:52,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043888607] [2019-10-15 01:04:52,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:52,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:04:52,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:04:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:52,673 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:52,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043888607] [2019-10-15 01:04:52,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336993209] [2019-10-15 01:04:52,674 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 [2019-10-15 01:04:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:04:52,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 01:04:52,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:04:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:52,900 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:04:52,955 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:04:52,956 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [49307316] [2019-10-15 01:04:52,963 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 20 [2019-10-15 01:04:53,027 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:04:53,027 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:04:53,085 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:04:53,090 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 32 variables. [2019-10-15 01:04:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:04:53,094 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:04:53,123 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-15 01:04:53,124 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:04:53,126 INFO L553 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-10-15 01:04:53,126 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:04:53,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:04:53,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 9 [2019-10-15 01:04:53,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917844792] [2019-10-15 01:04:53,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:04:53,128 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:04:53,129 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:04:53,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:04:53,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:04:53,129 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 2 states. [2019-10-15 01:04:53,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:04:53,131 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-10-15 01:04:53,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:04:53,131 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-15 01:04:53,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:04:53,132 INFO L225 Difference]: With dead ends: 20 [2019-10-15 01:04:53,132 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:04:53,133 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:04:53,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:04:53,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:04:53,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:04:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:04:53,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-15 01:04:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:04:53,134 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:04:53,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:04:53,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:04:53,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:04:53,340 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:04:53,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:04:53,362 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:04:53,362 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:04:53,363 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:04:53,363 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:04:53,363 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-15 01:04:53,363 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:04:53,363 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:04:53,364 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 222) no Hoare annotation was computed. [2019-10-15 01:04:53,364 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 191) no Hoare annotation was computed. [2019-10-15 01:04:53,364 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 131 223) no Hoare annotation was computed. [2019-10-15 01:04:53,364 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 215) no Hoare annotation was computed. [2019-10-15 01:04:53,364 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 220) no Hoare annotation was computed. [2019-10-15 01:04:53,364 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 131 223) no Hoare annotation was computed. [2019-10-15 01:04:53,365 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 207) no Hoare annotation was computed. [2019-10-15 01:04:53,365 INFO L443 ceAbstractionStarter]: For program point L191(line 191) no Hoare annotation was computed. [2019-10-15 01:04:53,365 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 131 223) the Hoare annotation is: true [2019-10-15 01:04:53,365 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 208) no Hoare annotation was computed. [2019-10-15 01:04:53,365 INFO L446 ceAbstractionStarter]: At program point L214(lines 180 215) the Hoare annotation is: true [2019-10-15 01:04:53,365 INFO L446 ceAbstractionStarter]: At program point L202(lines 165 221) the Hoare annotation is: true [2019-10-15 01:04:53,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:04:53 BoogieIcfgContainer [2019-10-15 01:04:53,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:04:53,375 INFO L168 Benchmark]: Toolchain (without parser) took 3181.73 ms. Allocated memory was 137.4 MB in the beginning and 233.3 MB in the end (delta: 95.9 MB). Free memory was 101.6 MB in the beginning and 98.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:53,376 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:04:53,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.13 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 174.8 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:53,378 INFO L168 Benchmark]: Boogie Preprocessor took 70.84 ms. Allocated memory is still 201.9 MB. Free memory was 174.8 MB in the beginning and 171.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:53,379 INFO L168 Benchmark]: RCFGBuilder took 870.06 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 99.3 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:53,380 INFO L168 Benchmark]: TraceAbstraction took 1697.71 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 98.6 MB in the beginning and 98.9 MB in the end (delta: -364.7 kB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:04:53,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 537.13 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 174.8 MB in the end (delta: -73.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.84 ms. Allocated memory is still 201.9 MB. Free memory was 174.8 MB in the beginning and 171.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 870.06 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 99.3 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1697.71 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 98.6 MB in the beginning and 98.9 MB in the end (delta: -364.7 kB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 191]: 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: 180]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 32 SDslu, 54 SDs, 0 SdLazy, 22 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 3468 SizeOfPredicates, 2 NumberOfNonLiveVariables, 424 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 131, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 10.333333333333334, 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...