./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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/Problem02_label31.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 a6b4686a702c55ef2a6c6f32177e8de2a3958b27b177bd3bb0594e6295487599 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 22:45:07,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:45:07,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:45:07,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:45:07,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:45:07,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:45:07,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:45:07,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:45:07,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:45:07,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:45:07,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:45:07,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:45:07,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:45:07,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:45:07,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:45:07,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:45:07,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:45:07,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:45:07,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:45:07,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:45:07,227 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:45:07,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:45:07,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:45:07,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:45:07,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:45:07,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:45:07,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:45:07,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:45:07,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:45:07,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:45:07,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:45:07,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:45:07,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:45:07,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:45:07,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:45:07,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:45:07,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:45:07,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:45:07,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:45:07,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:45:07,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:45:07,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:45:07,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 22:45:07,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:45:07,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:45:07,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:45:07,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:45:07,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:45:07,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:45:07,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:45:07,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:45:07,293 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:45:07,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:45:07,294 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:45:07,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 22:45:07,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:45:07,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:45:07,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:45:07,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:45:07,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:45:07,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:45:07,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:45:07,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:45:07,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:45:07,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:45:07,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:45:07,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:45:07,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:45:07,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:45:07,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:45:07,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:45:07,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 22:45:07,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 22:45:07,309 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:45:07,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:45:07,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:45:07,310 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6b4686a702c55ef2a6c6f32177e8de2a3958b27b177bd3bb0594e6295487599 [2022-07-20 22:45:07,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:45:07,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:45:07,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:45:07,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:45:07,679 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:45:07,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2022-07-20 22:45:07,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66dd3383/b66f8e03aae443deb9bad9adc2f013cb/FLAG3eef98335 [2022-07-20 22:45:08,280 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:45:08,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label31.c [2022-07-20 22:45:08,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66dd3383/b66f8e03aae443deb9bad9adc2f013cb/FLAG3eef98335 [2022-07-20 22:45:08,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66dd3383/b66f8e03aae443deb9bad9adc2f013cb [2022-07-20 22:45:08,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:45:08,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:45:08,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:45:08,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:45:08,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:45:08,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:45:08" (1/1) ... [2022-07-20 22:45:08,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557f6625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:08, skipping insertion in model container [2022-07-20 22:45:08,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:45:08" (1/1) ... [2022-07-20 22:45:08,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:45:08,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:45:09,024 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/Problem02_label31.c[18601,18614] [2022-07-20 22:45:09,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:45:09,048 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:45:09,117 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/Problem02_label31.c[18601,18614] [2022-07-20 22:45:09,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:45:09,147 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:45:09,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09 WrapperNode [2022-07-20 22:45:09,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:45:09,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:45:09,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:45:09,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:45:09,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,231 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-07-20 22:45:09,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:45:09,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:45:09,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:45:09,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:45:09,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:45:09,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:45:09,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:45:09,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:45:09,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (1/1) ... [2022-07-20 22:45:09,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:45:09,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:45:09,341 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) [2022-07-20 22:45:09,353 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 [2022-07-20 22:45:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:45:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 22:45:09,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:45:09,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:45:09,481 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:45:09,496 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:45:10,204 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:45:10,216 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:45:10,216 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 22:45:10,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:45:10 BoogieIcfgContainer [2022-07-20 22:45:10,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:45:10,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:45:10,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:45:10,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:45:10,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:45:08" (1/3) ... [2022-07-20 22:45:10,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6282f5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:45:10, skipping insertion in model container [2022-07-20 22:45:10,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:45:09" (2/3) ... [2022-07-20 22:45:10,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6282f5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:45:10, skipping insertion in model container [2022-07-20 22:45:10,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:45:10" (3/3) ... [2022-07-20 22:45:10,225 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label31.c [2022-07-20 22:45:10,237 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:45:10,238 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:45:10,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:45:10,301 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27b5ddf3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1009d0cf [2022-07-20 22:45:10,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:45:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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) [2022-07-20 22:45:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-20 22:45:10,330 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:10,330 INFO L195 NwaCegarLoop]: 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] [2022-07-20 22:45:10,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:10,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1691815701, now seen corresponding path program 1 times [2022-07-20 22:45:10,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:10,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773765608] [2022-07-20 22:45:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:10,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:45:10,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:10,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773765608] [2022-07-20 22:45:10,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773765608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:10,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:10,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:45:10,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611317475] [2022-07-20 22:45:10,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:10,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:10,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:10,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:10,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:10,827 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2022-07-20 22:45:11,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:11,498 INFO L93 Difference]: Finished difference Result 601 states and 1035 transitions. [2022-07-20 22:45:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:11,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 116 [2022-07-20 22:45:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:11,519 INFO L225 Difference]: With dead ends: 601 [2022-07-20 22:45:11,520 INFO L226 Difference]: Without dead ends: 310 [2022-07-20 22:45:11,526 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:11,530 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 118 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:11,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 116 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:45:11,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-07-20 22:45:11,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-07-20 22:45:11,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.4368932038834952) internal successors, (444), 309 states have internal predecessors, (444), 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) [2022-07-20 22:45:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 444 transitions. [2022-07-20 22:45:11,595 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 444 transitions. Word has length 116 [2022-07-20 22:45:11,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:11,596 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 444 transitions. [2022-07-20 22:45:11,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2022-07-20 22:45:11,596 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 444 transitions. [2022-07-20 22:45:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-20 22:45:11,599 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:11,599 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-20 22:45:11,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 22:45:11,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:11,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:11,600 INFO L85 PathProgramCache]: Analyzing trace with hash -306269546, now seen corresponding path program 1 times [2022-07-20 22:45:11,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:11,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225455741] [2022-07-20 22:45:11,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:11,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:11,667 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:45:11,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:11,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225455741] [2022-07-20 22:45:11,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225455741] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:11,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:11,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:45:11,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879439700] [2022-07-20 22:45:11,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:11,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:11,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:11,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:11,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:11,671 INFO L87 Difference]: Start difference. First operand 310 states and 444 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2022-07-20 22:45:12,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:12,132 INFO L93 Difference]: Finished difference Result 911 states and 1313 transitions. [2022-07-20 22:45:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:12,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 134 [2022-07-20 22:45:12,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:12,135 INFO L225 Difference]: With dead ends: 911 [2022-07-20 22:45:12,135 INFO L226 Difference]: Without dead ends: 603 [2022-07-20 22:45:12,136 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:12,137 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 156 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:12,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 98 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:45:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-07-20 22:45:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 598. [2022-07-20 22:45:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 1.3953098827470687) internal successors, (833), 597 states have internal predecessors, (833), 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) [2022-07-20 22:45:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 833 transitions. [2022-07-20 22:45:12,174 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 833 transitions. Word has length 134 [2022-07-20 22:45:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:12,174 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 833 transitions. [2022-07-20 22:45:12,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2022-07-20 22:45:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 833 transitions. [2022-07-20 22:45:12,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-20 22:45:12,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:12,179 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:45:12,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 22:45:12,180 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:12,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash 5389586, now seen corresponding path program 1 times [2022-07-20 22:45:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:12,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912239290] [2022-07-20 22:45:12,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:12,244 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 22:45:12,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:12,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912239290] [2022-07-20 22:45:12,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912239290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:12,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:12,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:45:12,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301444943] [2022-07-20 22:45:12,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:12,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:12,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:12,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:12,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:12,246 INFO L87 Difference]: Start difference. First operand 598 states and 833 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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) [2022-07-20 22:45:12,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:12,684 INFO L93 Difference]: Finished difference Result 1618 states and 2240 transitions. [2022-07-20 22:45:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:12,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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 144 [2022-07-20 22:45:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:12,688 INFO L225 Difference]: With dead ends: 1618 [2022-07-20 22:45:12,689 INFO L226 Difference]: Without dead ends: 1022 [2022-07-20 22:45:12,690 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:12,691 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 143 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:12,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 120 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:45:12,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-07-20 22:45:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1019. [2022-07-20 22:45:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1018 states have (on average 1.2662082514734774) internal successors, (1289), 1018 states have internal predecessors, (1289), 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) [2022-07-20 22:45:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1289 transitions. [2022-07-20 22:45:12,714 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1289 transitions. Word has length 144 [2022-07-20 22:45:12,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:12,714 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1289 transitions. [2022-07-20 22:45:12,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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) [2022-07-20 22:45:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1289 transitions. [2022-07-20 22:45:12,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-20 22:45:12,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:12,718 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:45:12,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 22:45:12,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:12,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:12,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1832527389, now seen corresponding path program 1 times [2022-07-20 22:45:12,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:12,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099854496] [2022-07-20 22:45:12,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:12,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-20 22:45:12,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:12,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099854496] [2022-07-20 22:45:12,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099854496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:12,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:12,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:45:12,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784322912] [2022-07-20 22:45:12,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:12,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:12,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:12,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:12,820 INFO L87 Difference]: Start difference. First operand 1019 states and 1289 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-07-20 22:45:13,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:13,248 INFO L93 Difference]: Finished difference Result 2459 states and 3150 transitions. [2022-07-20 22:45:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:13,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 149 [2022-07-20 22:45:13,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:13,254 INFO L225 Difference]: With dead ends: 2459 [2022-07-20 22:45:13,255 INFO L226 Difference]: Without dead ends: 1442 [2022-07-20 22:45:13,256 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:13,257 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 144 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:13,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 254 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:45:13,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2022-07-20 22:45:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1440. [2022-07-20 22:45:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 1.2126476719944406) internal successors, (1745), 1439 states have internal predecessors, (1745), 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) [2022-07-20 22:45:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1745 transitions. [2022-07-20 22:45:13,284 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1745 transitions. Word has length 149 [2022-07-20 22:45:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:13,285 INFO L495 AbstractCegarLoop]: Abstraction has 1440 states and 1745 transitions. [2022-07-20 22:45:13,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-07-20 22:45:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1745 transitions. [2022-07-20 22:45:13,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-20 22:45:13,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:13,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 22:45:13,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 22:45:13,289 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:13,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:13,290 INFO L85 PathProgramCache]: Analyzing trace with hash -474809048, now seen corresponding path program 1 times [2022-07-20 22:45:13,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:13,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339737675] [2022-07-20 22:45:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:45:13,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:13,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339737675] [2022-07-20 22:45:13,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339737675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:13,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:13,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:45:13,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520962752] [2022-07-20 22:45:13,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:13,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:13,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:13,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:13,341 INFO L87 Difference]: Start difference. First operand 1440 states and 1745 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-07-20 22:45:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:13,719 INFO L93 Difference]: Finished difference Result 2737 states and 3339 transitions. [2022-07-20 22:45:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:13,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 149 [2022-07-20 22:45:13,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:13,724 INFO L225 Difference]: With dead ends: 2737 [2022-07-20 22:45:13,724 INFO L226 Difference]: Without dead ends: 1299 [2022-07-20 22:45:13,726 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:13,727 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 144 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:13,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 274 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:45:13,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2022-07-20 22:45:13,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1294. [2022-07-20 22:45:13,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 1.1871616395978344) internal successors, (1535), 1293 states have internal predecessors, (1535), 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) [2022-07-20 22:45:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1535 transitions. [2022-07-20 22:45:13,757 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1535 transitions. Word has length 149 [2022-07-20 22:45:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:13,758 INFO L495 AbstractCegarLoop]: Abstraction has 1294 states and 1535 transitions. [2022-07-20 22:45:13,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-07-20 22:45:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1535 transitions. [2022-07-20 22:45:13,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-20 22:45:13,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:13,764 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:45:13,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 22:45:13,766 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:13,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:13,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1547050092, now seen corresponding path program 1 times [2022-07-20 22:45:13,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:13,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091624788] [2022-07-20 22:45:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:13,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:45:13,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:13,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091624788] [2022-07-20 22:45:13,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091624788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:13,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:13,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:45:13,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299499430] [2022-07-20 22:45:13,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:13,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:13,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:13,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:13,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:13,867 INFO L87 Difference]: Start difference. First operand 1294 states and 1535 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2022-07-20 22:45:14,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:14,233 INFO L93 Difference]: Finished difference Result 3008 states and 3546 transitions. [2022-07-20 22:45:14,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:14,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 157 [2022-07-20 22:45:14,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:14,239 INFO L225 Difference]: With dead ends: 3008 [2022-07-20 22:45:14,239 INFO L226 Difference]: Without dead ends: 1716 [2022-07-20 22:45:14,241 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:14,248 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 115 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:14,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 258 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:45:14,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2022-07-20 22:45:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1714. [2022-07-20 22:45:14,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.1529480443666082) internal successors, (1975), 1713 states have internal predecessors, (1975), 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) [2022-07-20 22:45:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 1975 transitions. [2022-07-20 22:45:14,284 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 1975 transitions. Word has length 157 [2022-07-20 22:45:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:14,284 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 1975 transitions. [2022-07-20 22:45:14,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2022-07-20 22:45:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 1975 transitions. [2022-07-20 22:45:14,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-20 22:45:14,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:14,288 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 22:45:14,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 22:45:14,289 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:14,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:14,289 INFO L85 PathProgramCache]: Analyzing trace with hash 69591526, now seen corresponding path program 1 times [2022-07-20 22:45:14,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:14,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372503630] [2022-07-20 22:45:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:14,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 22:45:14,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:14,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372503630] [2022-07-20 22:45:14,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372503630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:14,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:14,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:45:14,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222552570] [2022-07-20 22:45:14,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:14,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:14,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:14,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:14,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:14,358 INFO L87 Difference]: Start difference. First operand 1714 states and 1975 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2022-07-20 22:45:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:14,740 INFO L93 Difference]: Finished difference Result 3428 states and 3951 transitions. [2022-07-20 22:45:14,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:14,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 162 [2022-07-20 22:45:14,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:14,747 INFO L225 Difference]: With dead ends: 3428 [2022-07-20 22:45:14,748 INFO L226 Difference]: Without dead ends: 1716 [2022-07-20 22:45:14,751 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:14,753 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 160 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:14,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 59 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:45:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2022-07-20 22:45:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1714. [2022-07-20 22:45:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1713 states have (on average 1.1354349095154699) internal successors, (1945), 1713 states have internal predecessors, (1945), 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) [2022-07-20 22:45:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 1945 transitions. [2022-07-20 22:45:14,788 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 1945 transitions. Word has length 162 [2022-07-20 22:45:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:14,788 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 1945 transitions. [2022-07-20 22:45:14,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2022-07-20 22:45:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 1945 transitions. [2022-07-20 22:45:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-20 22:45:14,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:14,793 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-07-20 22:45:14,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 22:45:14,796 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:14,797 INFO L85 PathProgramCache]: Analyzing trace with hash 767341648, now seen corresponding path program 1 times [2022-07-20 22:45:14,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:14,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857892532] [2022-07-20 22:45:14,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:14,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-20 22:45:14,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:14,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857892532] [2022-07-20 22:45:14,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857892532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:14,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:14,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:45:14,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301501753] [2022-07-20 22:45:14,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:14,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:14,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:14,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:14,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:14,860 INFO L87 Difference]: Start difference. First operand 1714 states and 1945 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) [2022-07-20 22:45:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:15,057 INFO L93 Difference]: Finished difference Result 2991 states and 3421 transitions. [2022-07-20 22:45:15,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:15,058 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 176 [2022-07-20 22:45:15,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:15,062 INFO L225 Difference]: With dead ends: 2991 [2022-07-20 22:45:15,062 INFO L226 Difference]: Without dead ends: 1137 [2022-07-20 22:45:15,064 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:15,065 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 188 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:15,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 20 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 22:45:15,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-07-20 22:45:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2022-07-20 22:45:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1136 states have (on average 1.1161971830985915) internal successors, (1268), 1136 states have internal predecessors, (1268), 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) [2022-07-20 22:45:15,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1268 transitions. [2022-07-20 22:45:15,084 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1268 transitions. Word has length 176 [2022-07-20 22:45:15,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:15,084 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1268 transitions. [2022-07-20 22:45:15,084 INFO L496 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) [2022-07-20 22:45:15,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1268 transitions. [2022-07-20 22:45:15,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-20 22:45:15,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:15,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 22:45:15,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 22:45:15,088 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1921855434, now seen corresponding path program 1 times [2022-07-20 22:45:15,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:15,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226929893] [2022-07-20 22:45:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:15,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:45:15,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:15,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226929893] [2022-07-20 22:45:15,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226929893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:15,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:15,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:45:15,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570729940] [2022-07-20 22:45:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:15,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:15,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:15,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:15,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:15,153 INFO L87 Difference]: Start difference. First operand 1137 states and 1268 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2022-07-20 22:45:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:15,494 INFO L93 Difference]: Finished difference Result 2554 states and 2896 transitions. [2022-07-20 22:45:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:15,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 178 [2022-07-20 22:45:15,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:15,499 INFO L225 Difference]: With dead ends: 2554 [2022-07-20 22:45:15,499 INFO L226 Difference]: Without dead ends: 1559 [2022-07-20 22:45:15,501 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:15,503 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 129 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:15,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 189 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:45:15,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2022-07-20 22:45:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1558. [2022-07-20 22:45:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 1.1201027617212589) internal successors, (1744), 1557 states have internal predecessors, (1744), 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) [2022-07-20 22:45:15,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 1744 transitions. [2022-07-20 22:45:15,532 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 1744 transitions. Word has length 178 [2022-07-20 22:45:15,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:15,532 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 1744 transitions. [2022-07-20 22:45:15,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2022-07-20 22:45:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 1744 transitions. [2022-07-20 22:45:15,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-07-20 22:45:15,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:15,537 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:45:15,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 22:45:15,537 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:15,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:15,541 INFO L85 PathProgramCache]: Analyzing trace with hash 537567396, now seen corresponding path program 1 times [2022-07-20 22:45:15,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:15,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586285441] [2022-07-20 22:45:15,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:15,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:15,642 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 22:45:15,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:15,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586285441] [2022-07-20 22:45:15,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586285441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:15,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:15,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:45:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771343977] [2022-07-20 22:45:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:15,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:15,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:15,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:15,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:15,645 INFO L87 Difference]: Start difference. First operand 1558 states and 1744 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2022-07-20 22:45:15,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:15,976 INFO L93 Difference]: Finished difference Result 3814 states and 4298 transitions. [2022-07-20 22:45:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 193 [2022-07-20 22:45:15,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:15,981 INFO L225 Difference]: With dead ends: 3814 [2022-07-20 22:45:15,981 INFO L226 Difference]: Without dead ends: 993 [2022-07-20 22:45:15,984 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:15,985 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 95 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:15,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 232 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:45:15,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2022-07-20 22:45:15,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2022-07-20 22:45:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.0574596774193548) internal successors, (1049), 992 states have internal predecessors, (1049), 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) [2022-07-20 22:45:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1049 transitions. [2022-07-20 22:45:16,002 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1049 transitions. Word has length 193 [2022-07-20 22:45:16,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:16,002 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1049 transitions. [2022-07-20 22:45:16,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2022-07-20 22:45:16,003 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1049 transitions. [2022-07-20 22:45:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-20 22:45:16,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:45:16,007 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:45:16,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 22:45:16,007 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:45:16,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:45:16,008 INFO L85 PathProgramCache]: Analyzing trace with hash -479588960, now seen corresponding path program 1 times [2022-07-20 22:45:16,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:45:16,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554856760] [2022-07-20 22:45:16,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:45:16,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:45:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:45:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-20 22:45:16,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:45:16,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554856760] [2022-07-20 22:45:16,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554856760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:45:16,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:45:16,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:45:16,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995306809] [2022-07-20 22:45:16,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:45:16,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:45:16,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:45:16,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:45:16,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:45:16,101 INFO L87 Difference]: Start difference. First operand 993 states and 1049 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-07-20 22:45:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:45:16,394 INFO L93 Difference]: Finished difference Result 2123 states and 2253 transitions. [2022-07-20 22:45:16,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:45:16,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 253 [2022-07-20 22:45:16,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:45:16,395 INFO L225 Difference]: With dead ends: 2123 [2022-07-20 22:45:16,395 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 22:45:16,396 INFO L412 NwaCegarLoop]: 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 [2022-07-20 22:45:16,397 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 129 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:45:16,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 40 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:45:16,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 22:45:16,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 22:45:16,397 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) [2022-07-20 22:45:16,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 22:45:16,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 253 [2022-07-20 22:45:16,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:45:16,398 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 22:45:16,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-07-20 22:45:16,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 22:45:16,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 22:45:16,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 22:45:16,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 22:45:16,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-20 22:45:16,608 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,608 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,608 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,608 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-07-20 22:45:16,608 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-07-20 22:45:16,608 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-07-20 22:45:16,609 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2022-07-20 22:45:16,609 INFO L899 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2022-07-20 22:45:16,609 INFO L899 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2022-07-20 22:45:16,609 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-07-20 22:45:16,609 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-07-20 22:45:16,609 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,609 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,610 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,610 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-07-20 22:45:16,610 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2022-07-20 22:45:16,610 INFO L899 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2022-07-20 22:45:16,610 INFO L899 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2022-07-20 22:45:16,610 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-07-20 22:45:16,610 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,611 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,611 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,611 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-07-20 22:45:16,611 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-07-20 22:45:16,611 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-07-20 22:45:16,611 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2022-07-20 22:45:16,611 INFO L899 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,612 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,613 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-07-20 22:45:16,613 INFO L899 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2022-07-20 22:45:16,613 INFO L899 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2022-07-20 22:45:16,613 INFO L899 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2022-07-20 22:45:16,613 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-07-20 22:45:16,613 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-07-20 22:45:16,613 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-07-20 22:45:16,614 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,614 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,614 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,614 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-07-20 22:45:16,614 INFO L899 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2022-07-20 22:45:16,614 INFO L899 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2022-07-20 22:45:16,614 INFO L899 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2022-07-20 22:45:16,615 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2022-07-20 22:45:16,615 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2022-07-20 22:45:16,615 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-07-20 22:45:16,615 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,615 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,615 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,615 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-07-20 22:45:16,616 INFO L899 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2022-07-20 22:45:16,616 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-07-20 22:45:16,616 INFO L899 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2022-07-20 22:45:16,616 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-07-20 22:45:16,616 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,616 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,616 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,617 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-07-20 22:45:16,617 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-07-20 22:45:16,617 INFO L899 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2022-07-20 22:45:16,617 INFO L899 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2022-07-20 22:45:16,617 INFO L899 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2022-07-20 22:45:16,617 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-07-20 22:45:16,617 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2022-07-20 22:45:16,618 INFO L899 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2022-07-20 22:45:16,619 INFO L899 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2022-07-20 22:45:16,619 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-07-20 22:45:16,619 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-07-20 22:45:16,619 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-07-20 22:45:16,619 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-07-20 22:45:16,619 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,619 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,620 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,620 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2022-07-20 22:45:16,620 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2022-07-20 22:45:16,620 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2022-07-20 22:45:16,620 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2022-07-20 22:45:16,620 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2022-07-20 22:45:16,620 INFO L899 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2022-07-20 22:45:16,621 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-07-20 22:45:16,621 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-07-20 22:45:16,621 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-07-20 22:45:16,621 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,621 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,621 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,621 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-07-20 22:45:16,622 INFO L899 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2022-07-20 22:45:16,622 INFO L899 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2022-07-20 22:45:16,622 INFO L899 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2022-07-20 22:45:16,622 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-07-20 22:45:16,622 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-07-20 22:45:16,622 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-20 22:45:16,622 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 530) no Hoare annotation was computed. [2022-07-20 22:45:16,623 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,623 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,623 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,623 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-07-20 22:45:16,623 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-07-20 22:45:16,623 INFO L899 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2022-07-20 22:45:16,623 INFO L899 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2022-07-20 22:45:16,624 INFO L899 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2022-07-20 22:45:16,624 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-07-20 22:45:16,624 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-07-20 22:45:16,624 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-07-20 22:45:16,624 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,624 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,624 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,625 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-07-20 22:45:16,625 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2022-07-20 22:45:16,625 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2022-07-20 22:45:16,625 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-07-20 22:45:16,625 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-07-20 22:45:16,625 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,625 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-07-20 22:45:16,626 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2022-07-20 22:45:16,627 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2022-07-20 22:45:16,627 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-07-20 22:45:16,627 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-07-20 22:45:16,627 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2022-07-20 22:45:16,627 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,627 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,627 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2022-07-20 22:45:16,628 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-07-20 22:45:16,629 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse0 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and (<= 9 ~a28~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ~a28~0 7)) (and .cse0 .cse1 (= ~a19~0 1)) (and .cse1 .cse2 (= ~a25~0 0)))) [2022-07-20 22:45:16,629 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,629 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,629 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-07-20 22:45:16,629 INFO L899 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2022-07-20 22:45:16,629 INFO L899 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2022-07-20 22:45:16,630 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-07-20 22:45:16,630 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2022-07-20 22:45:16,630 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2022-07-20 22:45:16,630 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-07-20 22:45:16,630 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,630 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,630 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2022-07-20 22:45:16,631 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-20 22:45:16,632 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-07-20 22:45:16,633 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-07-20 22:45:16,633 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (= ~a25~0 1)) (.cse1 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (and (<= 9 ~a28~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (<= ~a28~0 7)) (and .cse0 .cse1 (= ~a19~0 1)) (and .cse1 .cse2 (= ~a25~0 0)))) [2022-07-20 22:45:16,633 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,633 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,633 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-07-20 22:45:16,633 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-07-20 22:45:16,633 INFO L899 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2022-07-20 22:45:16,633 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-07-20 22:45:16,634 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-07-20 22:45:16,634 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,634 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,634 INFO L899 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2022-07-20 22:45:16,634 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2022-07-20 22:45:16,634 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-07-20 22:45:16,634 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,635 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-07-20 22:45:16,636 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-07-20 22:45:16,637 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2022-07-20 22:45:16,638 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-07-20 22:45:16,639 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-07-20 22:45:16,642 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:45:16,644 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 22:45:16,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:45:16 BoogieIcfgContainer [2022-07-20 22:45:16,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 22:45:16,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 22:45:16,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 22:45:16,659 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 22:45:16,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:45:10" (3/4) ... [2022-07-20 22:45:16,661 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-20 22:45:16,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-20 22:45:16,677 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-20 22:45:16,678 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-20 22:45:16,678 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-20 22:45:16,745 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 22:45:16,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 22:45:16,746 INFO L158 Benchmark]: Toolchain (without parser) took 8163.13ms. Allocated memory was 54.5MB in the beginning and 144.7MB in the end (delta: 90.2MB). Free memory was 31.0MB in the beginning and 69.2MB in the end (delta: -38.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2022-07-20 22:45:16,746 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 35.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:45:16,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.58ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 30.8MB in the beginning and 38.8MB in the end (delta: -8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-20 22:45:16,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.91ms. Allocated memory is still 71.3MB. Free memory was 38.8MB in the beginning and 50.2MB in the end (delta: -11.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-20 22:45:16,747 INFO L158 Benchmark]: Boogie Preprocessor took 50.35ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 46.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-20 22:45:16,751 INFO L158 Benchmark]: RCFGBuilder took 935.61ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 46.1MB in the beginning and 69.5MB in the end (delta: -23.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-07-20 22:45:16,752 INFO L158 Benchmark]: TraceAbstraction took 6437.70ms. Allocated memory was 96.5MB in the beginning and 144.7MB in the end (delta: 48.2MB). Free memory was 69.0MB in the beginning and 78.7MB in the end (delta: -9.7MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2022-07-20 22:45:16,752 INFO L158 Benchmark]: Witness Printer took 87.15ms. Allocated memory is still 144.7MB. Free memory was 78.7MB in the beginning and 69.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 22:45:16,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 35.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.58ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 30.8MB in the beginning and 38.8MB in the end (delta: -8.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.91ms. Allocated memory is still 71.3MB. Free memory was 38.8MB in the beginning and 50.2MB in the end (delta: -11.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.35ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 46.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 935.61ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 46.1MB in the beginning and 69.5MB in the end (delta: -23.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6437.70ms. Allocated memory was 96.5MB in the beginning and 144.7MB in the end (delta: 48.2MB). Free memory was 69.0MB in the beginning and 78.7MB in the end (delta: -9.7MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Witness Printer took 87.15ms. Allocated memory is still 144.7MB. Free memory was 78.7MB in the beginning and 69.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. 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: 530]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1521 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1521 mSDsluCounter, 1660 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 662 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3743 IncrementalHoareTripleChecker+Invalid, 4405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 662 mSolverCounterUnsat, 1498 mSDtfsCounter, 3743 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1714occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 20 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 45 NumberOfFragments, 89 HoareAnnotationTreeSize, 3 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 500 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1811 NumberOfCodeBlocks, 1811 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1800 ConstructedInterpolants, 0 QuantifiedInterpolants, 2506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 755/755 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: 616]: Loop Invariant Derived loop invariant: (((((9 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10) || ((a25 == 1 && a17 <= 8) && a28 <= 7)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || ((a17 <= 8 && a28 <= 10) && a25 == 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((9 <= a28 && a25 == 1) && a17 <= 8) && a28 <= 10) || ((a25 == 1 && a17 <= 8) && a28 <= 7)) || ((a25 == 1 && a17 <= 8) && a19 == 1)) || ((a17 <= 8 && a28 <= 10) && a25 == 0) RESULT: Ultimate proved your program to be correct! [2022-07-20 22:45:16,798 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