./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/loopv1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/loopv1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7062369ded29eb59a5ee586d71a51c80ef84234b .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:05:06,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:05:06,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:05:06,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:05:06,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:05:06,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:05:06,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:05:06,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:05:06,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:05:06,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:05:06,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:05:06,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:05:06,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:05:06,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:05:06,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:05:06,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:05:07,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:05:07,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:05:07,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:05:07,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:05:07,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:05:07,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:05:07,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:05:07,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:05:07,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:05:07,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:05:07,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:05:07,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:05:07,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:05:07,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:05:07,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:05:07,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:05:07,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:05:07,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:05:07,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:05:07,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:05:07,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:05:07,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:05:07,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:05:07,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:05:07,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:05:07,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:05:07,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:05:07,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:05:07,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:05:07,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:05:07,093 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:05:07,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:05:07,094 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:05:07,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:05:07,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:05:07,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:05:07,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:05:07,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:05:07,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:05:07,095 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:05:07,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:05:07,096 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:05:07,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:05:07,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:05:07,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:05:07,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:05:07,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:05:07,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:05:07,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:05:07,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:05:07,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:05:07,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:05:07,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:05:07,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:05:07,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:05:07,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7062369ded29eb59a5ee586d71a51c80ef84234b [2020-10-20 01:05:07,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:05:07,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:05:07,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:05:07,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:05:07,332 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:05:07,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/loopv1.c [2020-10-20 01:05:07,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf853852c/7620a65712bf41f58d5d8cb9d3c1d62f/FLAGc446388cd [2020-10-20 01:05:07,899 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:05:07,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/loopv1.c [2020-10-20 01:05:07,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf853852c/7620a65712bf41f58d5d8cb9d3c1d62f/FLAGc446388cd [2020-10-20 01:05:08,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf853852c/7620a65712bf41f58d5d8cb9d3c1d62f [2020-10-20 01:05:08,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:05:08,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:05:08,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:05:08,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:05:08,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:05:08,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d207cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08, skipping insertion in model container [2020-10-20 01:05:08,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:05:08,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:05:08,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:05:08,632 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:05:08,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:05:08,668 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:05:08,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08 WrapperNode [2020-10-20 01:05:08,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:05:08,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:05:08,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:05:08,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:05:08,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:05:08,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:05:08,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:05:08,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:05:08,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (1/1) ... [2020-10-20 01:05:08,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:05:08,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:05:08,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:05:08,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:05:08,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (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 [2020-10-20 01:05:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:05:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:05:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:05:08,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:05:09,056 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:05:09,056 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 01:05:09,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:05:09 BoogieIcfgContainer [2020-10-20 01:05:09,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:05:09,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:05:09,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:05:09,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:05:09,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:05:08" (1/3) ... [2020-10-20 01:05:09,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1413d08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:05:09, skipping insertion in model container [2020-10-20 01:05:09,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:05:08" (2/3) ... [2020-10-20 01:05:09,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1413d08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:05:09, skipping insertion in model container [2020-10-20 01:05:09,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:05:09" (3/3) ... [2020-10-20 01:05:09,069 INFO L111 eAbstractionObserver]: Analyzing ICFG loopv1.c [2020-10-20 01:05:09,082 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:05:09,099 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:05:09,131 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:05:09,197 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:05:09,200 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:05:09,201 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:05:09,201 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:05:09,201 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:05:09,202 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:05:09,202 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:05:09,202 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:05:09,222 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-20 01:05:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 01:05:09,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:05:09,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:05:09,231 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:05:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:05:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1807274184, now seen corresponding path program 1 times [2020-10-20 01:05:09,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:05:09,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591720778] [2020-10-20 01:05:09,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:05:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:05:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:05:09,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591720778] [2020-10-20 01:05:09,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:05:09,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:05:09,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859922257] [2020-10-20 01:05:09,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:05:09,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:05:09,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:05:09,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:05:09,461 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-10-20 01:05:09,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:05:09,479 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2020-10-20 01:05:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:05:09,481 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-20 01:05:09,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:05:09,492 INFO L225 Difference]: With dead ends: 22 [2020-10-20 01:05:09,492 INFO L226 Difference]: Without dead ends: 9 [2020-10-20 01:05:09,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:05:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-20 01:05:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 01:05:09,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 01:05:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-10-20 01:05:09,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2020-10-20 01:05:09,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:05:09,530 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-20 01:05:09,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:05:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-10-20 01:05:09,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 01:05:09,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:05:09,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:05:09,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:05:09,531 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:05:09,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:05:09,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1806976274, now seen corresponding path program 1 times [2020-10-20 01:05:09,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:05:09,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814820210] [2020-10-20 01:05:09,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:05:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:05:09,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:05:09,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814820210] [2020-10-20 01:05:09,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:05:09,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:05:09,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640118874] [2020-10-20 01:05:09,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:05:09,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:05:09,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:05:09,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:05:09,679 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2020-10-20 01:05:09,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:05:09,726 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-20 01:05:09,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:05:09,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 01:05:09,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:05:09,730 INFO L225 Difference]: With dead ends: 15 [2020-10-20 01:05:09,730 INFO L226 Difference]: Without dead ends: 11 [2020-10-20 01:05:09,731 INFO L677 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 [2020-10-20 01:05:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-20 01:05:09,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-10-20 01:05:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 01:05:09,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-10-20 01:05:09,736 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2020-10-20 01:05:09,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:05:09,736 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-10-20 01:05:09,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:05:09,737 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-10-20 01:05:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 01:05:09,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:05:09,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:05:09,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:05:09,738 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:05:09,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:05:09,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1387754645, now seen corresponding path program 1 times [2020-10-20 01:05:09,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:05:09,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340065287] [2020-10-20 01:05:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:05:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:05:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:05:09,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340065287] [2020-10-20 01:05:09,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894434330] [2020-10-20 01:05:09,889 INFO L95 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 [2020-10-20 01:05:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:05:09,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 01:05:09,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:05:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:05:10,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:05:10,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-20 01:05:10,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582894297] [2020-10-20 01:05:10,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 01:05:10,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:05:10,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 01:05:10,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:05:10,058 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 7 states. [2020-10-20 01:05:10,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:05:10,134 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-10-20 01:05:10,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:05:10,134 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-10-20 01:05:10,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:05:10,135 INFO L225 Difference]: With dead ends: 15 [2020-10-20 01:05:10,147 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:05:10,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:05:10,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:05:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:05:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:05:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:05:10,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-10-20 01:05:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:05:10,150 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:05:10,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 01:05:10,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:05:10,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:05:10,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 01:05:10,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:05:10,392 INFO L277 CegarLoopResult]: At program point L33(lines 20 34) the Hoare annotation is: true [2020-10-20 01:05:10,392 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:05:10,392 INFO L274 CegarLoopResult]: For program point L27(lines 27 30) no Hoare annotation was computed. [2020-10-20 01:05:10,393 INFO L270 CegarLoopResult]: At program point L27-2(lines 25 31) the Hoare annotation is: (= ULTIMATE.start_main_~i~0 (* (div ULTIMATE.start_main_~i~0 3) 3)) [2020-10-20 01:05:10,393 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-20 01:05:10,393 INFO L274 CegarLoopResult]: For program point L25-2(lines 25 31) no Hoare annotation was computed. [2020-10-20 01:05:10,393 INFO L274 CegarLoopResult]: For program point L13(lines 13 15) no Hoare annotation was computed. [2020-10-20 01:05:10,393 INFO L277 CegarLoopResult]: At program point L13-2(lines 12 17) the Hoare annotation is: true [2020-10-20 01:05:10,393 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-20 01:05:10,394 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:05:10,394 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:05:10,394 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:05:10,394 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2020-10-20 01:05:10,394 INFO L274 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-10-20 01:05:10,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:05:10 BoogieIcfgContainer [2020-10-20 01:05:10,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:05:10,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:05:10,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:05:10,415 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:05:10,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:05:09" (3/4) ... [2020-10-20 01:05:10,420 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:05:10,436 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 01:05:10,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 01:05:10,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:05:10,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:05:10,499 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:05:10,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:05:10,503 INFO L168 Benchmark]: Toolchain (without parser) took 2133.25 ms. Allocated memory was 40.4 MB in the beginning and 45.6 MB in the end (delta: 5.2 MB). Free memory was 17.9 MB in the beginning and 21.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:05:10,504 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 30.9 MB. Free memory was 6.2 MB in the beginning and 6.1 MB in the end (delta: 30.3 kB). Peak memory consumption was 30.3 kB. Max. memory is 14.3 GB. [2020-10-20 01:05:10,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.36 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 17.8 MB in the end (delta: -724.3 kB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:05:10,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.65 ms. Allocated memory is still 41.4 MB. Free memory was 17.6 MB in the beginning and 16.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:05:10,506 INFO L168 Benchmark]: Boogie Preprocessor took 27.22 ms. Allocated memory is still 41.4 MB. Free memory was 16.1 MB in the beginning and 14.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:05:10,507 INFO L168 Benchmark]: RCFGBuilder took 318.22 ms. Allocated memory was 41.4 MB in the beginning and 42.5 MB in the end (delta: 1.0 MB). Free memory was 14.8 MB in the beginning and 17.5 MB in the end (delta: -2.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:05:10,508 INFO L168 Benchmark]: TraceAbstraction took 1354.42 ms. Allocated memory was 42.5 MB in the beginning and 45.6 MB in the end (delta: 3.1 MB). Free memory was 17.1 MB in the beginning and 24.8 MB in the end (delta: -7.7 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 01:05:10,509 INFO L168 Benchmark]: Witness Printer took 85.05 ms. Allocated memory is still 45.6 MB. Free memory was 24.8 MB in the beginning and 21.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:05:10,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 30.9 MB. Free memory was 6.2 MB in the beginning and 6.1 MB in the end (delta: 30.3 kB). Peak memory consumption was 30.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 294.36 ms. Allocated memory was 40.4 MB in the beginning and 41.4 MB in the end (delta: 1.0 MB). Free memory was 17.1 MB in the beginning and 17.8 MB in the end (delta: -724.3 kB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 42.65 ms. Allocated memory is still 41.4 MB. Free memory was 17.6 MB in the beginning and 16.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.22 ms. Allocated memory is still 41.4 MB. Free memory was 16.1 MB in the beginning and 14.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 318.22 ms. Allocated memory was 41.4 MB in the beginning and 42.5 MB in the end (delta: 1.0 MB). Free memory was 14.8 MB in the beginning and 17.5 MB in the end (delta: -2.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1354.42 ms. Allocated memory was 42.5 MB in the beginning and 45.6 MB in the end (delta: 3.1 MB). Free memory was 17.1 MB in the beginning and 24.8 MB in the end (delta: -7.7 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 85.05 ms. Allocated memory is still 45.6 MB. Free memory was 24.8 MB in the beginning and 21.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i == i / 3 * 3 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 9 SDslu, 15 SDs, 0 SdLazy, 55 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 474 SizeOfPredicates, 3 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...