./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/eca-rers2012/Problem01_label22.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 4d8ab50842d069074a372df0f6486f85fb04e0716bd5a388e751a6626a969998 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:03:37,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:03:37,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:03:37,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:03:37,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:03:37,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:03:37,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:03:37,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:03:37,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:03:37,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:03:37,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:03:37,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:03:37,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:03:37,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:03:37,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:03:37,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:03:37,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:03:37,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:03:37,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:03:37,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:03:37,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:03:37,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:03:37,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:03:37,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:03:37,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:03:37,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:03:37,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:03:37,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:03:37,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:03:37,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:03:37,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:03:37,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:03:37,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:03:37,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:03:37,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:03:37,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:03:37,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:03:37,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:03:37,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:03:37,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:03:37,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:03:37,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:03:37,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:03:37,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:03:37,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:03:37,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:03:37,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:03:37,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:03:37,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:03:37,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:03:37,277 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:03:37,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:03:37,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:03:37,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:03:37,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:03:37,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:03:37,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:03:37,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:03:37,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:03:37,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:03:37,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:03:37,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:03:37,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:03:37,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:03:37,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:03:37,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:03:37,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:03:37,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:03:37,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:03:37,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:03:37,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:03:37,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:03:37,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:03:37,282 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:03:37,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:03:37,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:03:37,282 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d8ab50842d069074a372df0f6486f85fb04e0716bd5a388e751a6626a969998 [2021-12-15 22:03:37,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:03:37,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:03:37,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:03:37,511 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:03:37,512 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:03:37,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label22.c [2021-12-15 22:03:37,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6fc91c20/e46b9b08cae04db88243f52ea8b394d6/FLAGa2e346274 [2021-12-15 22:03:37,990 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:03:37,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label22.c [2021-12-15 22:03:37,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6fc91c20/e46b9b08cae04db88243f52ea8b394d6/FLAGa2e346274 [2021-12-15 22:03:38,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6fc91c20/e46b9b08cae04db88243f52ea8b394d6 [2021-12-15 22:03:38,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:03:38,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:03:38,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:03:38,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:03:38,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:03:38,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb1a825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38, skipping insertion in model container [2021-12-15 22:03:38,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:03:38,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:03:38,337 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/eca-rers2012/Problem01_label22.c[21338,21351] [2021-12-15 22:03:38,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:03:38,365 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:03:38,415 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/eca-rers2012/Problem01_label22.c[21338,21351] [2021-12-15 22:03:38,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:03:38,432 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:03:38,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38 WrapperNode [2021-12-15 22:03:38,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:03:38,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:03:38,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:03:38,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:03:38,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,488 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-12-15 22:03:38,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:03:38,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:03:38,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:03:38,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:03:38,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:03:38,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:03:38,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:03:38,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:03:38,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (1/1) ... [2021-12-15 22:03:38,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:03:38,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:03:38,590 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) [2021-12-15 22:03:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:03:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:03:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:03:38,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:03:38,607 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 [2021-12-15 22:03:38,690 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:03:38,692 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:03:39,269 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:03:39,277 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:03:39,278 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:03:39,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:03:39 BoogieIcfgContainer [2021-12-15 22:03:39,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:03:39,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:03:39,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:03:39,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:03:39,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:03:38" (1/3) ... [2021-12-15 22:03:39,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9f981e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:03:39, skipping insertion in model container [2021-12-15 22:03:39,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:03:38" (2/3) ... [2021-12-15 22:03:39,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9f981e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:03:39, skipping insertion in model container [2021-12-15 22:03:39,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:03:39" (3/3) ... [2021-12-15 22:03:39,286 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label22.c [2021-12-15 22:03:39,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:03:39,290 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:03:39,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:03:39,339 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 [2021-12-15 22:03:39,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:03:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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) [2021-12-15 22:03:39,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-15 22:03:39,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:39,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:39,377 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:39,381 INFO L85 PathProgramCache]: Analyzing trace with hash -278590162, now seen corresponding path program 1 times [2021-12-15 22:03:39,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:39,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015687768] [2021-12-15 22:03:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:39,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:03:39,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:39,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015687768] [2021-12-15 22:03:39,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015687768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:39,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:03:39,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:03:39,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349709823] [2021-12-15 22:03:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:39,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:03:39,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:39,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:03:39,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:39,750 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-12-15 22:03:40,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:40,283 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2021-12-15 22:03:40,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:03:40,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2021-12-15 22:03:40,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:40,293 INFO L225 Difference]: With dead ends: 528 [2021-12-15 22:03:40,293 INFO L226 Difference]: Without dead ends: 266 [2021-12-15 22:03:40,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:40,298 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 68 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:40,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:03:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-12-15 22:03:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-12-15 22:03:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 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) [2021-12-15 22:03:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2021-12-15 22:03:40,332 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 127 [2021-12-15 22:03:40,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:40,333 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2021-12-15 22:03:40,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-12-15 22:03:40,333 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2021-12-15 22:03:40,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-15 22:03:40,335 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:40,335 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:40,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:03:40,336 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:40,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:40,336 INFO L85 PathProgramCache]: Analyzing trace with hash 249291862, now seen corresponding path program 1 times [2021-12-15 22:03:40,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:40,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444357194] [2021-12-15 22:03:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:40,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:03:40,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:40,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444357194] [2021-12-15 22:03:40,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444357194] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:40,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:03:40,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:03:40,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728716880] [2021-12-15 22:03:40,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:40,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:03:40,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:40,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:03:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:40,378 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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) [2021-12-15 22:03:40,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:40,671 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2021-12-15 22:03:40,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:03:40,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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 132 [2021-12-15 22:03:40,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:40,674 INFO L225 Difference]: With dead ends: 792 [2021-12-15 22:03:40,674 INFO L226 Difference]: Without dead ends: 528 [2021-12-15 22:03:40,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:40,676 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:40,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:03:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-12-15 22:03:40,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2021-12-15 22:03:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 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) [2021-12-15 22:03:40,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2021-12-15 22:03:40,697 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 132 [2021-12-15 22:03:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:40,697 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2021-12-15 22:03:40,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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) [2021-12-15 22:03:40,697 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2021-12-15 22:03:40,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-12-15 22:03:40,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:40,704 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:40,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:03:40,705 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:40,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:40,705 INFO L85 PathProgramCache]: Analyzing trace with hash 340643279, now seen corresponding path program 1 times [2021-12-15 22:03:40,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:40,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051684186] [2021-12-15 22:03:40,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:40,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:03:40,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:40,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051684186] [2021-12-15 22:03:40,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051684186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:40,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:03:40,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:03:40,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263833288] [2021-12-15 22:03:40,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:40,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:03:40,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:40,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:03:40,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:40,777 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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) [2021-12-15 22:03:41,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:41,093 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2021-12-15 22:03:41,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:03:41,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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 142 [2021-12-15 22:03:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:41,096 INFO L225 Difference]: With dead ends: 1447 [2021-12-15 22:03:41,096 INFO L226 Difference]: Without dead ends: 921 [2021-12-15 22:03:41,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:41,100 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:41,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 56 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:03:41,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-15 22:03:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2021-12-15 22:03:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.3219264892268694) internal successors, (1043), 789 states have internal predecessors, (1043), 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) [2021-12-15 22:03:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions. [2021-12-15 22:03:41,116 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 142 [2021-12-15 22:03:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:41,116 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions. [2021-12-15 22:03:41,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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) [2021-12-15 22:03:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions. [2021-12-15 22:03:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-15 22:03:41,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:41,120 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:41,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:03:41,120 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:41,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:41,121 INFO L85 PathProgramCache]: Analyzing trace with hash 523442655, now seen corresponding path program 1 times [2021-12-15 22:03:41,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:41,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524760365] [2021-12-15 22:03:41,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:41,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-15 22:03:41,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:41,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524760365] [2021-12-15 22:03:41,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524760365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:41,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:03:41,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:03:41,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592162447] [2021-12-15 22:03:41,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:41,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:03:41,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:41,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:03:41,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:41,160 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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) [2021-12-15 22:03:41,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:41,459 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions. [2021-12-15 22:03:41,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:03:41,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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 143 [2021-12-15 22:03:41,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:41,462 INFO L225 Difference]: With dead ends: 1840 [2021-12-15 22:03:41,462 INFO L226 Difference]: Without dead ends: 1052 [2021-12-15 22:03:41,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:41,464 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 127 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:41,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 74 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:03:41,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2021-12-15 22:03:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921. [2021-12-15 22:03:41,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2891304347826087) internal successors, (1186), 920 states have internal predecessors, (1186), 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) [2021-12-15 22:03:41,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1186 transitions. [2021-12-15 22:03:41,482 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1186 transitions. Word has length 143 [2021-12-15 22:03:41,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:41,482 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1186 transitions. [2021-12-15 22:03:41,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 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) [2021-12-15 22:03:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1186 transitions. [2021-12-15 22:03:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-12-15 22:03:41,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:41,486 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:41,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:03:41,486 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:41,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:41,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1502868313, now seen corresponding path program 1 times [2021-12-15 22:03:41,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:41,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873014655] [2021-12-15 22:03:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:41,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-15 22:03:41,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:41,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873014655] [2021-12-15 22:03:41,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873014655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:41,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:03:41,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:03:41,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491889961] [2021-12-15 22:03:41,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:41,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:03:41,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:41,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:03:41,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:03:41,576 INFO L87 Difference]: Start difference. First operand 921 states and 1186 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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) [2021-12-15 22:03:41,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:41,995 INFO L93 Difference]: Finished difference Result 2364 states and 3051 transitions. [2021-12-15 22:03:41,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:03:41,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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 147 [2021-12-15 22:03:41,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:42,000 INFO L225 Difference]: With dead ends: 2364 [2021-12-15 22:03:42,000 INFO L226 Difference]: Without dead ends: 1445 [2021-12-15 22:03:42,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:03:42,006 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 393 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:42,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 53 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:03:42,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-12-15 22:03:42,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1314. [2021-12-15 22:03:42,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.2665651180502666) internal successors, (1663), 1313 states have internal predecessors, (1663), 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) [2021-12-15 22:03:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1663 transitions. [2021-12-15 22:03:42,034 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1663 transitions. Word has length 147 [2021-12-15 22:03:42,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:42,035 INFO L470 AbstractCegarLoop]: Abstraction has 1314 states and 1663 transitions. [2021-12-15 22:03:42,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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) [2021-12-15 22:03:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1663 transitions. [2021-12-15 22:03:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-15 22:03:42,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:42,039 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:42,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:03:42,040 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:42,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1029809669, now seen corresponding path program 1 times [2021-12-15 22:03:42,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:42,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240466194] [2021-12-15 22:03:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:42,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-15 22:03:42,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:42,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240466194] [2021-12-15 22:03:42,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240466194] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:03:42,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486554370] [2021-12-15 22:03:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:42,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:03:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:03:42,093 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) [2021-12-15 22:03:42,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:03:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:42,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:03:42,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:03:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-15 22:03:42,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:03:42,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486554370] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:42,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:03:42,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 22:03:42,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090228518] [2021-12-15 22:03:42,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:42,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:03:42,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:42,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:03:42,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:03:42,494 INFO L87 Difference]: Start difference. First operand 1314 states and 1663 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2021-12-15 22:03:42,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:42,763 INFO L93 Difference]: Finished difference Result 2102 states and 2607 transitions. [2021-12-15 22:03:42,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:03:42,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 176 [2021-12-15 22:03:42,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:42,770 INFO L225 Difference]: With dead ends: 2102 [2021-12-15 22:03:42,770 INFO L226 Difference]: Without dead ends: 2100 [2021-12-15 22:03:42,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:03:42,775 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:42,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 22:03:42,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2021-12-15 22:03:42,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2100. [2021-12-15 22:03:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.2410671748451643) internal successors, (2605), 2099 states have internal predecessors, (2605), 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) [2021-12-15 22:03:42,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2605 transitions. [2021-12-15 22:03:42,805 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2605 transitions. Word has length 176 [2021-12-15 22:03:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:42,806 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2605 transitions. [2021-12-15 22:03:42,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2021-12-15 22:03:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2605 transitions. [2021-12-15 22:03:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-15 22:03:42,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:42,810 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:42,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 22:03:43,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-15 22:03:43,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:43,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1245128443, now seen corresponding path program 1 times [2021-12-15 22:03:43,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:43,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276269808] [2021-12-15 22:03:43,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:43,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-15 22:03:43,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:43,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276269808] [2021-12-15 22:03:43,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276269808] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:43,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:03:43,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:03:43,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033873770] [2021-12-15 22:03:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:43,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:03:43,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:03:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:43,082 INFO L87 Difference]: Start difference. First operand 2100 states and 2605 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2021-12-15 22:03:43,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:43,383 INFO L93 Difference]: Finished difference Result 3805 states and 4724 transitions. [2021-12-15 22:03:43,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:03:43,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 209 [2021-12-15 22:03:43,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:43,387 INFO L225 Difference]: With dead ends: 3805 [2021-12-15 22:03:43,387 INFO L226 Difference]: Without dead ends: 1445 [2021-12-15 22:03:43,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:03:43,391 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 139 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:43,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 191 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:03:43,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2021-12-15 22:03:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1314. [2021-12-15 22:03:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.118811881188119) internal successors, (1469), 1313 states have internal predecessors, (1469), 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) [2021-12-15 22:03:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1469 transitions. [2021-12-15 22:03:43,409 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1469 transitions. Word has length 209 [2021-12-15 22:03:43,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:43,409 INFO L470 AbstractCegarLoop]: Abstraction has 1314 states and 1469 transitions. [2021-12-15 22:03:43,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2021-12-15 22:03:43,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1469 transitions. [2021-12-15 22:03:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-12-15 22:03:43,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:03:43,412 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:43,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:03:43,413 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:03:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:03:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1941536762, now seen corresponding path program 1 times [2021-12-15 22:03:43,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:03:43,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102726727] [2021-12-15 22:03:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:43,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:03:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-15 22:03:43,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:03:43,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102726727] [2021-12-15 22:03:43,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102726727] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:03:43,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833813769] [2021-12-15 22:03:43,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:03:43,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:03:43,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:03:43,482 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:03:43,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:03:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:03:43,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:03:43,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:03:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-15 22:03:43,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:03:43,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833813769] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:03:43,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:03:43,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 22:03:43,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033025179] [2021-12-15 22:03:43,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:03:43,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:03:43,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:03:43,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:03:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:03:43,900 INFO L87 Difference]: Start difference. First operand 1314 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-12-15 22:03:44,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:03:44,111 INFO L93 Difference]: Finished difference Result 1314 states and 1469 transitions. [2021-12-15 22:03:44,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:03:44,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 215 [2021-12-15 22:03:44,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:03:44,113 INFO L225 Difference]: With dead ends: 1314 [2021-12-15 22:03:44,113 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:03:44,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:03:44,115 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 11 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:03:44,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 169 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 22:03:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:03:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:03:44,115 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) [2021-12-15 22:03:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:03:44,115 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 215 [2021-12-15 22:03:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:03:44,116 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:03:44,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-12-15 22:03:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:03:44,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:03:44,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:03:44,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:03:44,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-15 22:03:44,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:03:44,466 INFO L858 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2021-12-15 22:03:44,466 INFO L858 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2021-12-15 22:03:44,466 INFO L858 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2021-12-15 22:03:44,466 INFO L858 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2021-12-15 22:03:44,466 INFO L858 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,467 INFO L858 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-12-15 22:03:44,468 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,469 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-12-15 22:03:44,470 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-12-15 22:03:44,471 INFO L858 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-12-15 22:03:44,472 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2021-12-15 22:03:44,473 INFO L858 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,474 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2021-12-15 22:03:44,475 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,476 INFO L858 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2021-12-15 22:03:44,477 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-12-15 22:03:44,478 INFO L854 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse1 (= ~a7~0 1)) (.cse0 (= ~a21~0 1))) (or (and .cse0 .cse1 (<= ~a16~0 5)) (and .cse1 (<= ~a21~0 0)) (and .cse0 .cse1 (= ~a20~0 1)) (and .cse0 (<= ~a7~0 0)))) [2021-12-15 22:03:44,478 INFO L858 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,478 INFO L858 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,478 INFO L858 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,478 INFO L858 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,478 INFO L858 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,478 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-12-15 22:03:44,479 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L861 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,480 INFO L858 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:03:44,481 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-12-15 22:03:44,482 INFO L858 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-12-15 22:03:44,483 INFO L858 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L854 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse1 (= ~a7~0 1)) (.cse0 (= ~a21~0 1))) (or (and .cse0 .cse1 (<= ~a16~0 5)) (and .cse1 (<= ~a21~0 0)) (and .cse0 .cse1 (= ~a20~0 1)) (and .cse0 (<= ~a7~0 0)))) [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 567) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-15 22:03:44,484 INFO L858 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,485 INFO L858 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2021-12-15 22:03:44,486 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-12-15 22:03:44,486 INFO L858 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-12-15 22:03:44,486 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-12-15 22:03:44,486 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-12-15 22:03:44,488 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:03:44,490 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:03:44,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:03:44 BoogieIcfgContainer [2021-12-15 22:03:44,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:03:44,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:03:44,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:03:44,502 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:03:44,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:03:39" (3/4) ... [2021-12-15 22:03:44,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:03:44,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:03:44,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:03:44,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:03:44,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:03:44,566 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:03:44,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:03:44,567 INFO L158 Benchmark]: Toolchain (without parser) took 6557.20ms. Allocated memory was 100.7MB in the beginning and 220.2MB in the end (delta: 119.5MB). Free memory was 68.3MB in the beginning and 107.9MB in the end (delta: -39.6MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2021-12-15 22:03:44,567 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:03:44,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.23ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 60.1MB in the end (delta: 8.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 22:03:44,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.62ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 54.5MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 22:03:44,568 INFO L158 Benchmark]: Boogie Preprocessor took 74.99ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 54.5MB in the beginning and 99.9MB in the end (delta: -45.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-12-15 22:03:44,568 INFO L158 Benchmark]: RCFGBuilder took 715.23ms. Allocated memory is still 125.8MB. Free memory was 99.8MB in the beginning and 49.6MB in the end (delta: 50.2MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2021-12-15 22:03:44,568 INFO L158 Benchmark]: TraceAbstraction took 5220.21ms. Allocated memory was 125.8MB in the beginning and 220.2MB in the end (delta: 94.4MB). Free memory was 49.6MB in the beginning and 121.8MB in the end (delta: -72.2MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-12-15 22:03:44,568 INFO L158 Benchmark]: Witness Printer took 65.26ms. Allocated memory is still 220.2MB. Free memory was 121.8MB in the beginning and 107.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 22:03:44,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.23ms. Allocated memory is still 100.7MB. Free memory was 68.1MB in the beginning and 60.1MB in the end (delta: 8.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.62ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 54.5MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.99ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 54.5MB in the beginning and 99.9MB in the end (delta: -45.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * RCFGBuilder took 715.23ms. Allocated memory is still 125.8MB. Free memory was 99.8MB in the beginning and 49.6MB in the end (delta: 50.2MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5220.21ms. Allocated memory was 125.8MB in the beginning and 220.2MB in the end (delta: 94.4MB). Free memory was 49.6MB in the beginning and 121.8MB in the end (delta: -72.2MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Witness Printer took 65.26ms. Allocated memory is still 220.2MB. Free memory was 121.8MB in the beginning and 107.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. 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: 567]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1062 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1062 mSDsluCounter, 647 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 559 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2819 IncrementalHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 559 mSolverCounterUnsat, 601 mSDtfsCounter, 2819 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=6, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 524 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 29 NumberOfFragments, 71 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 518 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1682 NumberOfCodeBlocks, 1682 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1672 ConstructedInterpolants, 0 QuantifiedInterpolants, 3191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 813 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 754/760 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: 593]: Loop Invariant Derived loop invariant: ((((a21 == 1 && a7 == 1) && a16 <= 5) || (a7 == 1 && a21 <= 0)) || ((a21 == 1 && a7 == 1) && a20 == 1)) || (a21 == 1 && a7 <= 0) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((a21 == 1 && a7 == 1) && a16 <= 5) || (a7 == 1 && a21 <= 0)) || ((a21 == 1 && a7 == 1) && a20 == 1)) || (a21 == 1 && a7 <= 0) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:03:44,614 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