./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-crafted/simple_vardep_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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_1.5.800.v20200727-1323.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/loop-crafted/simple_vardep_1.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 199c7a46b756091bf3eb8b2dd1ac46d4cc123e50a50bc65aad9ff531c4b58043 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:18:09,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:18:09,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:18:09,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:18:09,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:18:09,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:18:09,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:18:09,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:18:09,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:18:09,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:18:09,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:18:09,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:18:09,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:18:09,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:18:09,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:18:09,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:18:09,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:18:09,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:18:09,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:18:09,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:18:09,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:18:09,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:18:09,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:18:09,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:18:09,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:18:09,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:18:09,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:18:09,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:18:09,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:18:09,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:18:09,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:18:09,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:18:09,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:18:09,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:18:09,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:18:09,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:18:09,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:18:09,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:18:09,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:18:09,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:18:09,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:18:09,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 12:18:09,277 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:18:09,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:18:09,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:18:09,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:18:09,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:18:09,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:18:09,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:18:09,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:18:09,279 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:18:09,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:18:09,280 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:18:09,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 12:18:09,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:18:09,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:18:09,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:18:09,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:18:09,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:18:09,281 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:18:09,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:18:09,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:18:09,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:18:09,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:18:09,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:18:09,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:18:09,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:18:09,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:18:09,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:18:09,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:18:09,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 12:18:09,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 12:18:09,283 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:18:09,283 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:18:09,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:18:09,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:18:09,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 199c7a46b756091bf3eb8b2dd1ac46d4cc123e50a50bc65aad9ff531c4b58043 [2021-12-21 12:18:09,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:18:09,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:18:09,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:18:09,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:18:09,495 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:18:09,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-12-21 12:18:09,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13624881f/adf41b62b0804c97bfa89b34b15b8b6f/FLAG13a9a10cd [2021-12-21 12:18:09,888 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:18:09,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-12-21 12:18:09,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13624881f/adf41b62b0804c97bfa89b34b15b8b6f/FLAG13a9a10cd [2021-12-21 12:18:09,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13624881f/adf41b62b0804c97bfa89b34b15b8b6f [2021-12-21 12:18:09,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:18:09,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:18:09,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:18:09,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:18:09,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:18:09,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:18:09" (1/1) ... [2021-12-21 12:18:09,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3286d7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:09, skipping insertion in model container [2021-12-21 12:18:09,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:18:09" (1/1) ... [2021-12-21 12:18:09,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:18:09,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:18:10,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-12-21 12:18:10,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:18:10,039 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:18:10,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-12-21 12:18:10,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:18:10,060 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:18:10,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10 WrapperNode [2021-12-21 12:18:10,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:18:10,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:18:10,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:18:10,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:18:10,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,084 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2021-12-21 12:18:10,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:18:10,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:18:10,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:18:10,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:18:10,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:18:10,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:18:10,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:18:10,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:18:10,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (1/1) ... [2021-12-21 12:18:10,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:18:10,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:18:10,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 12:18:10,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 12:18:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:18:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:18:10,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:18:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 12:18:10,207 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:18:10,208 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:18:10,272 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 12:18:10,276 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 12:18:10,276 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 12:18:10,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:18:10 BoogieIcfgContainer [2021-12-21 12:18:10,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 12:18:10,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 12:18:10,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 12:18:10,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 12:18:10,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:18:09" (1/3) ... [2021-12-21 12:18:10,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6469079c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:18:10, skipping insertion in model container [2021-12-21 12:18:10,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:18:10" (2/3) ... [2021-12-21 12:18:10,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6469079c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:18:10, skipping insertion in model container [2021-12-21 12:18:10,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:18:10" (3/3) ... [2021-12-21 12:18:10,284 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2021-12-21 12:18:10,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 12:18:10,287 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 12:18:10,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 12:18:10,322 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 12:18:10,335 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 12:18:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:18:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-21 12:18:10,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:18:10,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-21 12:18:10,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:18:10,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:18:10,367 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-12-21 12:18:10,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:18:10,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087643884] [2021-12-21 12:18:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:18:10,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:18:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:18:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:18:10,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:18:10,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087643884] [2021-12-21 12:18:10,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087643884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:18:10,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:18:10,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 12:18:10,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337212872] [2021-12-21 12:18:10,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:18:10,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 12:18:10,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:18:10,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 12:18:10,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:18:10,670 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:18:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:18:10,700 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-12-21 12:18:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 12:18:10,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-21 12:18:10,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:18:10,710 INFO L225 Difference]: With dead ends: 20 [2021-12-21 12:18:10,710 INFO L226 Difference]: Without dead ends: 9 [2021-12-21 12:18:10,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 12:18:10,718 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:18:10,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:18:10,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-12-21 12:18:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-21 12:18:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:18:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-12-21 12:18:10,742 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-12-21 12:18:10,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:18:10,743 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-12-21 12:18:10,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:18:10,749 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-12-21 12:18:10,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-21 12:18:10,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:18:10,749 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-21 12:18:10,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 12:18:10,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:18:10,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:18:10,751 INFO L85 PathProgramCache]: Analyzing trace with hash 300686882, now seen corresponding path program 1 times [2021-12-21 12:18:10,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:18:10,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985123383] [2021-12-21 12:18:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:18:10,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:18:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:18:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:18:10,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:18:10,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985123383] [2021-12-21 12:18:10,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985123383] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 12:18:10,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027915474] [2021-12-21 12:18:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:18:10,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:18:10,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:18:10,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 12:18:10,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 12:18:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:18:10,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-21 12:18:10,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:18:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:18:11,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 12:18:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 12:18:11,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027915474] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 12:18:11,179 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 12:18:11,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 8 [2021-12-21 12:18:11,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657464605] [2021-12-21 12:18:11,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 12:18:11,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 12:18:11,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:18:11,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 12:18:11,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 12:18:11,183 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:18:11,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:18:11,229 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-12-21 12:18:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 12:18:11,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-21 12:18:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:18:11,230 INFO L225 Difference]: With dead ends: 11 [2021-12-21 12:18:11,230 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 12:18:11,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-21 12:18:11,231 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:18:11,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:18:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 12:18:11,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 12:18:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:18:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 12:18:11,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-12-21 12:18:11,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:18:11,233 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 12:18:11,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:18:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 12:18:11,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 12:18:11,235 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 12:18:11,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 12:18:11,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 12:18:11,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 12:18:11,496 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 12:18:11,496 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 27) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~j~0#1| 0)) (let ((.cse0 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~k~0#1| .cse0) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= .cse0 |ULTIMATE.start_main_~k~0#1|)))) [2021-12-21 12:18:11,498 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 29) no Hoare annotation was computed. [2021-12-21 12:18:11,498 INFO L858 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-12-21 12:18:11,498 INFO L854 garLoopResultBuilder]: At program point L9-2(lines 7 13) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|))) (and (<= |ULTIMATE.start_main_~k~0#1| .cse0) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= .cse0 |ULTIMATE.start_main_~k~0#1|))) [2021-12-21 12:18:11,498 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 12:18:11,498 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 12:18:11,498 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 12:18:11,499 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-12-21 12:18:11,499 INFO L858 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-12-21 12:18:11,503 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 12:18:11,508 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 12:18:11,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 12:18:11 BoogieIcfgContainer [2021-12-21 12:18:11,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 12:18:11,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 12:18:11,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 12:18:11,524 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 12:18:11,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:18:10" (3/4) ... [2021-12-21 12:18:11,527 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 12:18:11,532 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-21 12:18:11,533 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-21 12:18:11,534 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 12:18:11,534 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 12:18:11,559 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 12:18:11,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 12:18:11,561 INFO L158 Benchmark]: Toolchain (without parser) took 1658.21ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 91.9MB in the beginning and 95.8MB in the end (delta: -3.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2021-12-21 12:18:11,561 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 79.7MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:18:11,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.39ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 97.9MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 12:18:11,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.10ms. Allocated memory is still 123.7MB. Free memory was 97.9MB in the beginning and 96.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:18:11,562 INFO L158 Benchmark]: Boogie Preprocessor took 12.17ms. Allocated memory is still 123.7MB. Free memory was 96.7MB in the beginning and 95.8MB in the end (delta: 907.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:18:11,562 INFO L158 Benchmark]: RCFGBuilder took 179.78ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 87.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 12:18:11,563 INFO L158 Benchmark]: TraceAbstraction took 1243.93ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 87.1MB in the beginning and 97.9MB in the end (delta: -10.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-12-21 12:18:11,564 INFO L158 Benchmark]: Witness Printer took 36.04ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:18:11,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 79.7MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.39ms. Allocated memory is still 123.7MB. Free memory was 91.6MB in the beginning and 97.9MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.10ms. Allocated memory is still 123.7MB. Free memory was 97.9MB in the beginning and 96.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.17ms. Allocated memory is still 123.7MB. Free memory was 96.7MB in the beginning and 95.8MB in the end (delta: 907.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 179.78ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 87.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.93ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 87.1MB in the beginning and 97.9MB in the end (delta: -10.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Witness Printer took 36.04ms. Allocated memory is still 148.9MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 12 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 39 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 6 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1/6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: (k <= i + j && 1 <= cond) && i + j <= k - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((i == 0 && k == 0) && j == 0) || ((k <= i + j && 1 <= cond) && i + j <= k) RESULT: Ultimate proved your program to be correct! [2021-12-21 12:18:11,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE