./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_label02.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 203014188672df6ecb5502efd1e8042fd4aedfd2 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 20:42:39,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 20:42:39,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 20:42:39,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 20:42:39,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 20:42:39,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 20:42:39,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 20:42:39,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 20:42:39,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 20:42:39,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 20:42:39,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 20:42:39,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 20:42:39,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 20:42:39,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 20:42:39,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 20:42:39,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 20:42:39,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 20:42:39,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 20:42:39,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 20:42:39,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 20:42:39,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 20:42:39,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 20:42:39,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 20:42:39,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 20:42:39,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 20:42:39,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 20:42:39,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 20:42:39,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 20:42:39,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 20:42:39,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 20:42:39,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 20:42:39,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 20:42:39,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 20:42:39,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 20:42:39,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 20:42:39,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 20:42:39,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 20:42:39,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 20:42:39,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 20:42:39,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 20:42:39,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 20:42:39,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 20:42:39,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 20:42:39,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 20:42:39,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 20:42:39,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 20:42:39,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 20:42:39,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 20:42:39,172 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 20:42:39,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 20:42:39,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 20:42:39,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 20:42:39,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 20:42:39,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 20:42:39,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 20:42:39,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 20:42:39,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 20:42:39,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 20:42:39,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 20:42:39,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 20:42:39,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 20:42:39,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 20:42:39,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 20:42:39,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 20:42:39,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:42:39,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 20:42:39,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 20:42:39,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 20:42:39,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 20:42:39,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 20:42:39,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 20:42:39,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 20:42:39,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 203014188672df6ecb5502efd1e8042fd4aedfd2 [2021-08-25 20:42:39,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 20:42:39,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 20:42:39,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 20:42:39,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 20:42:39,495 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 20:42:39,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label02.c [2021-08-25 20:42:39,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b092331/c5b14afffcab416aa629b9e3db1f5829/FLAG9669bd840 [2021-08-25 20:42:40,123 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 20:42:40,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label02.c [2021-08-25 20:42:40,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b092331/c5b14afffcab416aa629b9e3db1f5829/FLAG9669bd840 [2021-08-25 20:42:40,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b092331/c5b14afffcab416aa629b9e3db1f5829 [2021-08-25 20:42:40,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 20:42:40,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 20:42:40,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 20:42:40,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 20:42:40,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 20:42:40,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:42:40" (1/1) ... [2021-08-25 20:42:40,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6773fd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:40, skipping insertion in model container [2021-08-25 20:42:40,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:42:40" (1/1) ... [2021-08-25 20:42:40,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 20:42:40,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 20:42:40,833 WARN L228 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_label02.c[15989,16002] [2021-08-25 20:42:40,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:42:40,876 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 20:42:41,020 WARN L228 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_label02.c[15989,16002] [2021-08-25 20:42:41,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 20:42:41,065 INFO L208 MainTranslator]: Completed translation [2021-08-25 20:42:41,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41 WrapperNode [2021-08-25 20:42:41,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 20:42:41,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 20:42:41,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 20:42:41,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 20:42:41,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 20:42:41,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 20:42:41,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 20:42:41,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 20:42:41,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 20:42:41,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 20:42:41,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 20:42:41,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 20:42:41,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (1/1) ... [2021-08-25 20:42:41,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 20:42:41,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:42:41,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-25 20:42:41,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-25 20:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 20:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 20:42:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 20:42:41,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 20:42:42,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 20:42:42,484 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 20:42:42,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:42:42 BoogieIcfgContainer [2021-08-25 20:42:42,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 20:42:42,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 20:42:42,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 20:42:42,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 20:42:42,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:42:40" (1/3) ... [2021-08-25 20:42:42,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac6875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:42:42, skipping insertion in model container [2021-08-25 20:42:42,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:42:41" (2/3) ... [2021-08-25 20:42:42,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac6875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:42:42, skipping insertion in model container [2021-08-25 20:42:42,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:42:42" (3/3) ... [2021-08-25 20:42:42,494 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label02.c [2021-08-25 20:42:42,498 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 20:42:42,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 20:42:42,537 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 20:42:42,542 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 20:42:42,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 20:42:42,560 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) [2021-08-25 20:42:42,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-08-25 20:42:42,569 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:42,569 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:42:42,570 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:42,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1717349669, now seen corresponding path program 1 times [2021-08-25 20:42:42,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:42,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521641064] [2021-08-25 20:42:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:42,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:42:42,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:42,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521641064] [2021-08-25 20:42:42,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521641064] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:42,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:42,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:42:42,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889820750] [2021-08-25 20:42:42,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:42,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:42,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:42,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:43,003 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 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:43,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:43,883 INFO L93 Difference]: Finished difference Result 630 states and 1070 transitions. [2021-08-25 20:42:43,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:43,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 93 [2021-08-25 20:42:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:43,899 INFO L225 Difference]: With dead ends: 630 [2021-08-25 20:42:43,900 INFO L226 Difference]: Without dead ends: 318 [2021-08-25 20:42:43,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:43,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-08-25 20:42:43,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-08-25 20:42:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.473186119873817) internal successors, (467), 317 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2021-08-25 20:42:43,947 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 93 [2021-08-25 20:42:43,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:43,948 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2021-08-25 20:42:43,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:43,948 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2021-08-25 20:42:43,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-08-25 20:42:43,952 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:43,952 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-25 20:42:43,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 20:42:43,953 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:43,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:43,954 INFO L82 PathProgramCache]: Analyzing trace with hash -317427888, now seen corresponding path program 1 times [2021-08-25 20:42:43,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:43,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101520067] [2021-08-25 20:42:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:43,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:42:44,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:44,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101520067] [2021-08-25 20:42:44,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101520067] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:44,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:44,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:42:44,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914338539] [2021-08-25 20:42:44,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 20:42:44,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:44,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 20:42:44,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:42:44,117 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:44,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:44,990 INFO L93 Difference]: Finished difference Result 999 states and 1508 transitions. [2021-08-25 20:42:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 20:42:44,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2021-08-25 20:42:44,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:44,998 INFO L225 Difference]: With dead ends: 999 [2021-08-25 20:42:44,999 INFO L226 Difference]: Without dead ends: 600 [2021-08-25 20:42:45,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 20:42:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-08-25 20:42:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2021-08-25 20:42:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.357262103505843) internal successors, (813), 599 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 813 transitions. [2021-08-25 20:42:45,026 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 813 transitions. Word has length 97 [2021-08-25 20:42:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:45,026 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 813 transitions. [2021-08-25 20:42:45,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 813 transitions. [2021-08-25 20:42:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-08-25 20:42:45,031 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:45,031 INFO L512 BasicCegarLoop]: 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] [2021-08-25 20:42:45,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 20:42:45,032 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:45,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:45,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1573604474, now seen corresponding path program 1 times [2021-08-25 20:42:45,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:45,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093672671] [2021-08-25 20:42:45,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:45,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:42:45,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:45,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093672671] [2021-08-25 20:42:45,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093672671] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:45,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:45,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:42:45,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030797043] [2021-08-25 20:42:45,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:45,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:45,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:45,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:45,083 INFO L87 Difference]: Start difference. First operand 600 states and 813 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:45,567 INFO L93 Difference]: Finished difference Result 1781 states and 2418 transitions. [2021-08-25 20:42:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2021-08-25 20:42:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:45,573 INFO L225 Difference]: With dead ends: 1781 [2021-08-25 20:42:45,573 INFO L226 Difference]: Without dead ends: 1183 [2021-08-25 20:42:45,574 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:45,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-08-25 20:42:45,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1173. [2021-08-25 20:42:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 1.3114334470989761) internal successors, (1537), 1172 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:45,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1537 transitions. [2021-08-25 20:42:45,606 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1537 transitions. Word has length 111 [2021-08-25 20:42:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:45,607 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 1537 transitions. [2021-08-25 20:42:45,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:45,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1537 transitions. [2021-08-25 20:42:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-08-25 20:42:45,612 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:45,612 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-25 20:42:45,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 20:42:45,613 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:45,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:45,614 INFO L82 PathProgramCache]: Analyzing trace with hash -77950967, now seen corresponding path program 1 times [2021-08-25 20:42:45,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:45,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357360371] [2021-08-25 20:42:45,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:45,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:45,654 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:42:45,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:45,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357360371] [2021-08-25 20:42:45,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357360371] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:45,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:45,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 20:42:45,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53653871] [2021-08-25 20:42:45,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:45,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:45,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:45,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:45,657 INFO L87 Difference]: Start difference. First operand 1173 states and 1537 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:46,181 INFO L93 Difference]: Finished difference Result 3329 states and 4387 transitions. [2021-08-25 20:42:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:46,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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 117 [2021-08-25 20:42:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:46,189 INFO L225 Difference]: With dead ends: 3329 [2021-08-25 20:42:46,189 INFO L226 Difference]: Without dead ends: 2158 [2021-08-25 20:42:46,192 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:46,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-08-25 20:42:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2155. [2021-08-25 20:42:46,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2154 states have (on average 1.1996285979572887) internal successors, (2584), 2154 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:46,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2584 transitions. [2021-08-25 20:42:46,238 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2584 transitions. Word has length 117 [2021-08-25 20:42:46,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:46,239 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2584 transitions. [2021-08-25 20:42:46,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2584 transitions. [2021-08-25 20:42:46,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-08-25 20:42:46,242 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:46,242 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-08-25 20:42:46,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 20:42:46,243 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:46,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:46,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1454931417, now seen corresponding path program 1 times [2021-08-25 20:42:46,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:46,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869833571] [2021-08-25 20:42:46,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:46,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 20:42:46,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:46,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869833571] [2021-08-25 20:42:46,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869833571] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 20:42:46,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878394108] [2021-08-25 20:42:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:46,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:42:46,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 20:42:46,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 20:42:46,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 20:42:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:46,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 20:42:46,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 20:42:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-25 20:42:47,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878394108] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:47,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 20:42:47,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 20:42:47,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825124356] [2021-08-25 20:42:47,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:47,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:47,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:47,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:42:47,152 INFO L87 Difference]: Start difference. First operand 2155 states and 2584 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:47,649 INFO L93 Difference]: Finished difference Result 5309 states and 6449 transitions. [2021-08-25 20:42:47,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:47,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 120 [2021-08-25 20:42:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:47,661 INFO L225 Difference]: With dead ends: 5309 [2021-08-25 20:42:47,662 INFO L226 Difference]: Without dead ends: 3156 [2021-08-25 20:42:47,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 20:42:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3156 states. [2021-08-25 20:42:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3156 to 2876. [2021-08-25 20:42:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2875 states have (on average 1.1815652173913043) internal successors, (3397), 2875 states have internal predecessors, (3397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 3397 transitions. [2021-08-25 20:42:47,713 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 3397 transitions. Word has length 120 [2021-08-25 20:42:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:47,715 INFO L470 AbstractCegarLoop]: Abstraction has 2876 states and 3397 transitions. [2021-08-25 20:42:47,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 3397 transitions. [2021-08-25 20:42:47,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-08-25 20:42:47,723 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:47,724 INFO L512 BasicCegarLoop]: 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, 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] [2021-08-25 20:42:47,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 20:42:47,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 20:42:47,937 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:47,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:47,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1204169373, now seen corresponding path program 1 times [2021-08-25 20:42:47,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:47,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212157139] [2021-08-25 20:42:47,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:47,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-25 20:42:47,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:47,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212157139] [2021-08-25 20:42:47,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212157139] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:47,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:47,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:42:47,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842101574] [2021-08-25 20:42:47,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:48,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:48,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:48,005 INFO L87 Difference]: Start difference. First operand 2876 states and 3397 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:48,493 INFO L93 Difference]: Finished difference Result 6735 states and 8084 transitions. [2021-08-25 20:42:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:48,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2021-08-25 20:42:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:48,507 INFO L225 Difference]: With dead ends: 6735 [2021-08-25 20:42:48,507 INFO L226 Difference]: Without dead ends: 3861 [2021-08-25 20:42:48,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2021-08-25 20:42:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3714. [2021-08-25 20:42:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 3713 states have (on average 1.2006463775922436) internal successors, (4458), 3713 states have internal predecessors, (4458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:48,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 4458 transitions. [2021-08-25 20:42:48,578 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 4458 transitions. Word has length 146 [2021-08-25 20:42:48,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:48,578 INFO L470 AbstractCegarLoop]: Abstraction has 3714 states and 4458 transitions. [2021-08-25 20:42:48,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:48,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 4458 transitions. [2021-08-25 20:42:48,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-08-25 20:42:48,593 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:48,593 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2021-08-25 20:42:48,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 20:42:48,594 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:48,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1012722605, now seen corresponding path program 1 times [2021-08-25 20:42:48,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:48,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544780927] [2021-08-25 20:42:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:48,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-25 20:42:48,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:48,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544780927] [2021-08-25 20:42:48,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544780927] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:48,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:48,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:42:48,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823585330] [2021-08-25 20:42:48,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:48,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:48,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:48,636 INFO L87 Difference]: Start difference. First operand 3714 states and 4458 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:49,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:49,082 INFO L93 Difference]: Finished difference Result 7573 states and 9006 transitions. [2021-08-25 20:42:49,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:49,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 150 [2021-08-25 20:42:49,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:49,098 INFO L225 Difference]: With dead ends: 7573 [2021-08-25 20:42:49,098 INFO L226 Difference]: Without dead ends: 3581 [2021-08-25 20:42:49,103 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2021-08-25 20:42:49,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 3283. [2021-08-25 20:42:49,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 1.154174283973187) internal successors, (3788), 3282 states have internal predecessors, (3788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:49,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 3788 transitions. [2021-08-25 20:42:49,172 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 3788 transitions. Word has length 150 [2021-08-25 20:42:49,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:49,173 INFO L470 AbstractCegarLoop]: Abstraction has 3283 states and 3788 transitions. [2021-08-25 20:42:49,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 3788 transitions. [2021-08-25 20:42:49,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-08-25 20:42:49,179 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:49,180 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:42:49,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 20:42:49,180 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:49,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:49,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1515050692, now seen corresponding path program 1 times [2021-08-25 20:42:49,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:49,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277114460] [2021-08-25 20:42:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:49,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-08-25 20:42:49,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:49,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277114460] [2021-08-25 20:42:49,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277114460] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:49,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:49,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:42:49,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383895095] [2021-08-25 20:42:49,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:49,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:49,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:49,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:49,251 INFO L87 Difference]: Start difference. First operand 3283 states and 3788 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:49,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:49,703 INFO L93 Difference]: Finished difference Result 6260 states and 7221 transitions. [2021-08-25 20:42:49,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:49,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 159 [2021-08-25 20:42:49,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:49,711 INFO L225 Difference]: With dead ends: 6260 [2021-08-25 20:42:49,712 INFO L226 Difference]: Without dead ends: 2279 [2021-08-25 20:42:49,716 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:49,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2021-08-25 20:42:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2139. [2021-08-25 20:42:49,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.1000935453695042) internal successors, (2352), 2138 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2352 transitions. [2021-08-25 20:42:49,753 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2352 transitions. Word has length 159 [2021-08-25 20:42:49,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:49,753 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 2352 transitions. [2021-08-25 20:42:49,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:49,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2352 transitions. [2021-08-25 20:42:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-08-25 20:42:49,758 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:49,758 INFO L512 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:42:49,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 20:42:49,759 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:49,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:49,759 INFO L82 PathProgramCache]: Analyzing trace with hash -156969243, now seen corresponding path program 1 times [2021-08-25 20:42:49,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:49,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209778301] [2021-08-25 20:42:49,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:49,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-08-25 20:42:49,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:49,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209778301] [2021-08-25 20:42:49,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209778301] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:49,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:49,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:42:49,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712658933] [2021-08-25 20:42:49,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:49,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:49,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:49,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:49,807 INFO L87 Difference]: Start difference. First operand 2139 states and 2352 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:50,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:50,227 INFO L93 Difference]: Finished difference Result 4560 states and 5013 transitions. [2021-08-25 20:42:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:50,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 200 [2021-08-25 20:42:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:50,234 INFO L225 Difference]: With dead ends: 4560 [2021-08-25 20:42:50,234 INFO L226 Difference]: Without dead ends: 2281 [2021-08-25 20:42:50,236 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2021-08-25 20:42:50,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2277. [2021-08-25 20:42:50,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.0795254833040422) internal successors, (2457), 2276 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:50,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 2457 transitions. [2021-08-25 20:42:50,269 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 2457 transitions. Word has length 200 [2021-08-25 20:42:50,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:50,269 INFO L470 AbstractCegarLoop]: Abstraction has 2277 states and 2457 transitions. [2021-08-25 20:42:50,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 2457 transitions. [2021-08-25 20:42:50,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-08-25 20:42:50,275 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 20:42:50,275 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 20:42:50,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 20:42:50,275 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 20:42:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 20:42:50,276 INFO L82 PathProgramCache]: Analyzing trace with hash -558163709, now seen corresponding path program 1 times [2021-08-25 20:42:50,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 20:42:50,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010740862] [2021-08-25 20:42:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 20:42:50,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 20:42:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 20:42:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-08-25 20:42:50,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 20:42:50,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010740862] [2021-08-25 20:42:50,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010740862] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 20:42:50,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 20:42:50,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 20:42:50,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866519203] [2021-08-25 20:42:50,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 20:42:50,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 20:42:50,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 20:42:50,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:50,326 INFO L87 Difference]: Start difference. First operand 2277 states and 2457 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:50,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 20:42:50,729 INFO L93 Difference]: Finished difference Result 5112 states and 5560 transitions. [2021-08-25 20:42:50,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 20:42:50,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 221 [2021-08-25 20:42:50,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 20:42:50,730 INFO L225 Difference]: With dead ends: 5112 [2021-08-25 20:42:50,730 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 20:42:50,734 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 20:42:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 20:42:50,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 20:42:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 20:42:50,735 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 221 [2021-08-25 20:42:50,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 20:42:50,735 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 20:42:50,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 20:42:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 20:42:50,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 20:42:50,738 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 20:42:50,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 20:42:50,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 20:42:50,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:42:50,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:42:50,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 20:42:51,190 INFO L857 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,191 INFO L857 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,191 INFO L857 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,191 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-08-25 20:42:51,191 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-08-25 20:42:51,191 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-08-25 20:42:51,191 INFO L857 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-08-25 20:42:51,192 INFO L857 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-08-25 20:42:51,192 INFO L857 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-08-25 20:42:51,192 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-08-25 20:42:51,192 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-08-25 20:42:51,192 INFO L857 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,192 INFO L857 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,192 INFO L857 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,193 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-08-25 20:42:51,193 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-08-25 20:42:51,193 INFO L857 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-08-25 20:42:51,193 INFO L857 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-08-25 20:42:51,193 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-08-25 20:42:51,193 INFO L857 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,193 INFO L857 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,194 INFO L857 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,194 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-08-25 20:42:51,194 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-08-25 20:42:51,194 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-08-25 20:42:51,194 INFO L857 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-08-25 20:42:51,194 INFO L857 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-08-25 20:42:51,194 INFO L857 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-08-25 20:42:51,195 INFO L857 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-08-25 20:42:51,195 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-08-25 20:42:51,195 INFO L857 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-08-25 20:42:51,195 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-08-25 20:42:51,195 INFO L857 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,195 INFO L857 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,195 INFO L857 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-08-25 20:42:51,196 INFO L857 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,197 INFO L857 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,197 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,197 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-08-25 20:42:51,197 INFO L857 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-08-25 20:42:51,197 INFO L857 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-08-25 20:42:51,197 INFO L857 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-08-25 20:42:51,197 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-08-25 20:42:51,198 INFO L857 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-08-25 20:42:51,198 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-08-25 20:42:51,198 INFO L857 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,198 INFO L857 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,198 INFO L857 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,198 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-08-25 20:42:51,198 INFO L857 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-08-25 20:42:51,199 INFO L857 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-08-25 20:42:51,199 INFO L857 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-08-25 20:42:51,199 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-08-25 20:42:51,199 INFO L857 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,199 INFO L857 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,199 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,199 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-08-25 20:42:51,200 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-08-25 20:42:51,200 INFO L857 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-08-25 20:42:51,200 INFO L857 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-08-25 20:42:51,200 INFO L857 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-08-25 20:42:51,200 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-08-25 20:42:51,200 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-08-25 20:42:51,200 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-08-25 20:42:51,201 INFO L857 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,201 INFO L857 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,201 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,201 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-08-25 20:42:51,201 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 20:42:51,201 INFO L857 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-08-25 20:42:51,201 INFO L857 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-08-25 20:42:51,202 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-08-25 20:42:51,202 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-08-25 20:42:51,202 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-08-25 20:42:51,202 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-08-25 20:42:51,202 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-08-25 20:42:51,202 INFO L857 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,202 INFO L857 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,203 INFO L857 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,203 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-08-25 20:42:51,203 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-08-25 20:42:51,203 INFO L857 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-08-25 20:42:51,203 INFO L857 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-08-25 20:42:51,203 INFO L857 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-08-25 20:42:51,203 INFO L857 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-08-25 20:42:51,204 INFO L857 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-08-25 20:42:51,205 INFO L857 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-08-25 20:42:51,205 INFO L857 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-08-25 20:42:51,205 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-08-25 20:42:51,205 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-08-25 20:42:51,205 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 20:42:51,205 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-08-25 20:42:51,206 INFO L857 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-08-25 20:42:51,207 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-08-25 20:42:51,207 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-08-25 20:42:51,207 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-08-25 20:42:51,207 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,207 INFO L857 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,207 INFO L857 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,207 INFO L857 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-08-25 20:42:51,208 INFO L857 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-08-25 20:42:51,208 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-08-25 20:42:51,208 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-08-25 20:42:51,208 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-08-25 20:42:51,208 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,208 INFO L857 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-08-25 20:42:51,209 INFO L857 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-08-25 20:42:51,210 INFO L857 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-08-25 20:42:51,210 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-08-25 20:42:51,210 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-08-25 20:42:51,210 INFO L857 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-08-25 20:42:51,210 INFO L857 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,210 INFO L857 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,210 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-08-25 20:42:51,211 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-08-25 20:42:51,212 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse10 (= ~a11~0 0)) (.cse2 (<= ~a25~0 0)) (.cse8 (<= ~a19~0 0)) (.cse0 (<= 9 ~a28~0)) (.cse1 (= ~a11~0 1)) (.cse9 (<= ~a28~0 10)) (.cse5 (= ~a17~0 8)) (.cse3 (= ~a25~0 1)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a19~0 1)) (.cse4 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse4) (and .cse5 .cse1 .cse6 .cse7 .cse2) (and .cse1 .cse4 .cse8) (and .cse1 .cse4 .cse2) (and .cse5 .cse3 .cse1 .cse6 .cse9 .cse7) (and .cse10 .cse9 .cse2) (and .cse10 .cse4 .cse8) (and .cse3 .cse1 .cse9 .cse8) (and .cse3 .cse10) (and .cse1 .cse2 .cse8) (and .cse10 .cse2 .cse8) (and .cse0 .cse3 .cse1 .cse9) (and .cse5 .cse3 .cse6 .cse7 .cse4))) [2021-08-25 20:42:51,212 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,212 INFO L857 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,212 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-08-25 20:42:51,213 INFO L857 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-08-25 20:42:51,213 INFO L857 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-08-25 20:42:51,213 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-08-25 20:42:51,213 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-08-25 20:42:51,213 INFO L857 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-08-25 20:42:51,213 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-08-25 20:42:51,213 INFO L857 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,213 INFO L857 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,214 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-08-25 20:42:51,214 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-08-25 20:42:51,214 INFO L857 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-08-25 20:42:51,214 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-08-25 20:42:51,214 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-08-25 20:42:51,214 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-08-25 20:42:51,214 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-08-25 20:42:51,215 INFO L857 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-08-25 20:42:51,215 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-08-25 20:42:51,215 INFO L857 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,215 INFO L857 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,215 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-08-25 20:42:51,215 INFO L857 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-08-25 20:42:51,215 INFO L857 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-08-25 20:42:51,216 INFO L857 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-08-25 20:42:51,216 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 20:42:51,216 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-08-25 20:42:51,216 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-08-25 20:42:51,216 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse10 (= ~a11~0 0)) (.cse2 (<= ~a25~0 0)) (.cse8 (<= ~a19~0 0)) (.cse0 (<= 9 ~a28~0)) (.cse1 (= ~a11~0 1)) (.cse9 (<= ~a28~0 10)) (.cse5 (= ~a17~0 8)) (.cse3 (= ~a25~0 1)) (.cse6 (= ~a21~0 1)) (.cse7 (= ~a19~0 1)) (.cse4 (<= ~a28~0 7))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse4) (and .cse5 .cse1 .cse6 .cse7 .cse2) (and .cse1 .cse4 .cse8) (and .cse1 .cse4 .cse2) (and .cse5 .cse3 .cse1 .cse6 .cse9 .cse7) (and .cse10 .cse9 .cse2) (and .cse10 .cse4 .cse8) (and .cse3 .cse1 .cse9 .cse8) (and .cse3 .cse10) (and .cse1 .cse2 .cse8) (and .cse10 .cse2 .cse8) (and .cse0 .cse3 .cse1 .cse9) (and .cse5 .cse3 .cse6 .cse7 .cse4))) [2021-08-25 20:42:51,216 INFO L857 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,217 INFO L857 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-08-25 20:42:51,218 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-08-25 20:42:51,219 INFO L857 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-08-25 20:42:51,220 INFO L857 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-08-25 20:42:51,220 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-08-25 20:42:51,220 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-08-25 20:42:51,220 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-08-25 20:42:51,220 INFO L857 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,220 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,220 INFO L857 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,221 INFO L857 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-08-25 20:42:51,221 INFO L857 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-08-25 20:42:51,221 INFO L857 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-08-25 20:42:51,221 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-08-25 20:42:51,221 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-08-25 20:42:51,221 INFO L857 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,221 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,222 INFO L857 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-08-25 20:42:51,222 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-08-25 20:42:51,222 INFO L857 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-08-25 20:42:51,222 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-08-25 20:42:51,222 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-08-25 20:42:51,222 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-08-25 20:42:51,222 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-08-25 20:42:51,226 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 20:42:51,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 08:42:51 BoogieIcfgContainer [2021-08-25 20:42:51,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 20:42:51,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 20:42:51,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 20:42:51,245 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 20:42:51,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:42:42" (3/4) ... [2021-08-25 20:42:51,247 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 20:42:51,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 20:42:51,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 20:42:51,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:42:51,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 20:42:51,356 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 20:42:51,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 20:42:51,358 INFO L168 Benchmark]: Toolchain (without parser) took 10786.06 ms. Allocated memory was 69.2 MB in the beginning and 243.3 MB in the end (delta: 174.1 MB). Free memory was 50.3 MB in the beginning and 162.5 MB in the end (delta: -112.2 MB). Peak memory consumption was 61.5 MB. Max. memory is 16.1 GB. [2021-08-25 20:42:51,358 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 20:42:51,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.45 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 43.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:42:51,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 38.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:42:51,360 INFO L168 Benchmark]: Boogie Preprocessor took 47.66 ms. Allocated memory is still 69.2 MB. Free memory was 38.3 MB in the beginning and 34.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 20:42:51,360 INFO L168 Benchmark]: RCFGBuilder took 1300.15 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 33.8 MB in the beginning and 49.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-08-25 20:42:51,360 INFO L168 Benchmark]: TraceAbstraction took 8755.67 ms. Allocated memory was 90.2 MB in the beginning and 243.3 MB in the end (delta: 153.1 MB). Free memory was 49.9 MB in the beginning and 176.3 MB in the end (delta: -126.4 MB). Peak memory consumption was 108.0 MB. Max. memory is 16.1 GB. [2021-08-25 20:42:51,360 INFO L168 Benchmark]: Witness Printer took 112.67 ms. Allocated memory is still 243.3 MB. Free memory was 176.3 MB in the beginning and 162.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 20:42:51,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 495.45 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 43.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.93 ms. Allocated memory is still 69.2 MB. Free memory was 43.7 MB in the beginning and 38.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.66 ms. Allocated memory is still 69.2 MB. Free memory was 38.3 MB in the beginning and 34.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1300.15 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 33.8 MB in the beginning and 49.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8755.67 ms. Allocated memory was 90.2 MB in the beginning and 243.3 MB in the end (delta: 153.1 MB). Free memory was 49.9 MB in the beginning and 176.3 MB in the end (delta: -126.4 MB). Peak memory consumption was 108.0 MB. Max. memory is 16.1 GB. * Witness Printer took 112.67 ms. Allocated memory is still 243.3 MB. Free memory was 176.3 MB in the beginning and 162.5 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 461]: 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: 8691.3ms, OverallIterations: 10, TraceHistogramMax: 5, EmptinessCheckTime: 65.6ms, AutomataDifference: 5627.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 451.3ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1540 SDtfs, 1336 SDslu, 204 SDs, 0 SdLazy, 3994 SolverSat, 753 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3761.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 66.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3714occurred in iteration=6, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 390.6ms AutomataMinimizationTime, 10 MinimizatonAttempts, 882 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 63 NumberOfFragments, 331 HoareAnnotationTreeSize, 3 FomulaSimplifications, 672 FormulaSimplificationTreeSizeReduction, 34.9ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 190 FormulaSimplificationTreeSizeReductionInter, 409.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 81.0ms SsaConstructionTime, 268.7ms SatisfiabilityAnalysisTime, 1282.9ms InterpolantComputationTime, 1534 NumberOfCodeBlocks, 1534 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1523 ConstructedInterpolants, 0 QuantifiedInterpolants, 5587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 263 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 755/771 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 && a11 == 1) && a25 <= 0) || ((a25 == 1 && a11 == 1) && a28 <= 7)) || ((((a17 == 8 && a11 == 1) && a21 == 1) && a19 == 1) && a25 <= 0)) || ((a11 == 1 && a28 <= 7) && a19 <= 0)) || ((a11 == 1 && a28 <= 7) && a25 <= 0)) || (((((a17 == 8 && a25 == 1) && a11 == 1) && a21 == 1) && a28 <= 10) && a19 == 1)) || ((a11 == 0 && a28 <= 10) && a25 <= 0)) || ((a11 == 0 && a28 <= 7) && a19 <= 0)) || (((a25 == 1 && a11 == 1) && a28 <= 10) && a19 <= 0)) || (a25 == 1 && a11 == 0)) || ((a11 == 1 && a25 <= 0) && a19 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || (((9 <= a28 && a25 == 1) && a11 == 1) && a28 <= 10)) || ((((a17 == 8 && a25 == 1) && a21 == 1) && a19 == 1) && a28 <= 7) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((((9 <= a28 && a11 == 1) && a25 <= 0) || ((a25 == 1 && a11 == 1) && a28 <= 7)) || ((((a17 == 8 && a11 == 1) && a21 == 1) && a19 == 1) && a25 <= 0)) || ((a11 == 1 && a28 <= 7) && a19 <= 0)) || ((a11 == 1 && a28 <= 7) && a25 <= 0)) || (((((a17 == 8 && a25 == 1) && a11 == 1) && a21 == 1) && a28 <= 10) && a19 == 1)) || ((a11 == 0 && a28 <= 10) && a25 <= 0)) || ((a11 == 0 && a28 <= 7) && a19 <= 0)) || (((a25 == 1 && a11 == 1) && a28 <= 10) && a19 <= 0)) || (a25 == 1 && a11 == 0)) || ((a11 == 1 && a25 <= 0) && a19 <= 0)) || ((a11 == 0 && a25 <= 0) && a19 <= 0)) || (((9 <= a28 && a25 == 1) && a11 == 1) && a28 <= 10)) || ((((a17 == 8 && a25 == 1) && a21 == 1) && a19 == 1) && a28 <= 7) RESULT: Ultimate proved your program to be correct! [2021-08-25 20:42:51,420 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...