./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/nla-digbench-scaling/dijkstra-u_unwindbound2.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 fdd63639d000bb02cdf5f126c366f5a853e2c8e4 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 12:09:33,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 12:09:33,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 12:09:33,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 12:09:33,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 12:09:33,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 12:09:33,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 12:09:33,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 12:09:33,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 12:09:33,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 12:09:33,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 12:09:33,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 12:09:33,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 12:09:33,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 12:09:33,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 12:09:33,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 12:09:33,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 12:09:33,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 12:09:33,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 12:09:33,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 12:09:33,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 12:09:33,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 12:09:33,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 12:09:33,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 12:09:33,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 12:09:33,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 12:09:33,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 12:09:33,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 12:09:33,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 12:09:33,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 12:09:33,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 12:09:33,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 12:09:33,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 12:09:33,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 12:09:33,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 12:09:33,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 12:09:33,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 12:09:33,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 12:09:33,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 12:09:33,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 12:09:33,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 12:09:33,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 12:09:33,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 12:09:33,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 12:09:33,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 12:09:33,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 12:09:33,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 12:09:33,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 12:09:33,361 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 12:09:33,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 12:09:33,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 12:09:33,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 12:09:33,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 12:09:33,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 12:09:33,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 12:09:33,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 12:09:33,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 12:09:33,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 12:09:33,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 12:09:33,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 12:09:33,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 12:09:33,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 12:09:33,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 12:09:33,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 12:09:33,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 12:09:33,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 12:09:33,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 12:09:33,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 12:09:33,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 12:09:33,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 12:09:33,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 12:09:33,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 12:09:33,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdd63639d000bb02cdf5f126c366f5a853e2c8e4 [2021-08-29 12:09:33,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 12:09:33,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 12:09:33,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 12:09:33,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 12:09:33,674 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 12:09:33,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2021-08-29 12:09:33,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213d3fa40/c41d1920dcc64cb8913625744079e823/FLAGff2fc1d05 [2021-08-29 12:09:34,211 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 12:09:34,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2021-08-29 12:09:34,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213d3fa40/c41d1920dcc64cb8913625744079e823/FLAGff2fc1d05 [2021-08-29 12:09:34,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213d3fa40/c41d1920dcc64cb8913625744079e823 [2021-08-29 12:09:34,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 12:09:34,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 12:09:34,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 12:09:34,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 12:09:34,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 12:09:34,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5add39e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34, skipping insertion in model container [2021-08-29 12:09:34,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 12:09:34,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 12:09:34,400 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/nla-digbench-scaling/dijkstra-u_unwindbound2.c[533,546] [2021-08-29 12:09:34,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 12:09:34,455 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 12:09:34,472 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/nla-digbench-scaling/dijkstra-u_unwindbound2.c[533,546] [2021-08-29 12:09:34,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 12:09:34,528 INFO L208 MainTranslator]: Completed translation [2021-08-29 12:09:34,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34 WrapperNode [2021-08-29 12:09:34,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 12:09:34,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 12:09:34,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 12:09:34,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 12:09:34,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 12:09:34,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 12:09:34,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 12:09:34,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 12:09:34,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 12:09:34,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 12:09:34,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 12:09:34,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 12:09:34,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (1/1) ... [2021-08-29 12:09:34,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 12:09:34,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:09:34,654 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) [2021-08-29 12:09:34,679 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 [2021-08-29 12:09:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 12:09:34,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 12:09:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 12:09:34,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 12:09:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2021-08-29 12:09:34,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 12:09:34,911 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-29 12:09:34,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 12:09:34 BoogieIcfgContainer [2021-08-29 12:09:34,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 12:09:34,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 12:09:34,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 12:09:34,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 12:09:34,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 12:09:34" (1/3) ... [2021-08-29 12:09:34,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aeeb6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 12:09:34, skipping insertion in model container [2021-08-29 12:09:34,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 12:09:34" (2/3) ... [2021-08-29 12:09:34,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aeeb6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 12:09:34, skipping insertion in model container [2021-08-29 12:09:34,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 12:09:34" (3/3) ... [2021-08-29 12:09:34,919 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound2.c [2021-08-29 12:09:34,924 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 12:09:34,924 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-08-29 12:09:34,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 12:09:34,984 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 [2021-08-29 12:09:34,984 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-08-29 12:09:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 40 states have (on average 1.65) internal successors, (66), 49 states have internal predecessors, (66), 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) [2021-08-29 12:09:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 12:09:35,013 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:35,014 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:35,015 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:35,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:35,022 INFO L82 PathProgramCache]: Analyzing trace with hash -578123657, now seen corresponding path program 1 times [2021-08-29 12:09:35,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:35,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738713688] [2021-08-29 12:09:35,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:35,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:35,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:35,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738713688] [2021-08-29 12:09:35,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738713688] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:35,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:35,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 12:09:35,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812704013] [2021-08-29 12:09:35,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 12:09:35,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 12:09:35,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 12:09:35,237 INFO L87 Difference]: Start difference. First operand has 50 states, 40 states have (on average 1.65) internal successors, (66), 49 states have internal predecessors, (66), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 12:09:37,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:37,454 INFO L93 Difference]: Finished difference Result 97 states and 128 transitions. [2021-08-29 12:09:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 12:09:37,460 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-29 12:09:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:37,467 INFO L225 Difference]: With dead ends: 97 [2021-08-29 12:09:37,467 INFO L226 Difference]: Without dead ends: 46 [2021-08-29 12:09:37,469 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 12:09:37,476 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2172.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2194.55ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:37,477 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 54 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 2194.55ms Time] [2021-08-29 12:09:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-29 12:09:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-08-29 12:09:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 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) [2021-08-29 12:09:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-08-29 12:09:37,506 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 9 [2021-08-29 12:09:37,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:37,507 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-08-29 12:09:37,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 12:09:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-08-29 12:09:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 12:09:37,508 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:37,508 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:37,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 12:09:37,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:37,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1987056657, now seen corresponding path program 1 times [2021-08-29 12:09:37,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:37,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923756102] [2021-08-29 12:09:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:37,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:37,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:37,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923756102] [2021-08-29 12:09:37,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923756102] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:37,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:37,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 12:09:37,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719234548] [2021-08-29 12:09:37,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 12:09:37,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 12:09:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:09:37,562 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-29 12:09:39,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:41,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:41,918 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-08-29 12:09:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 12:09:41,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-08-29 12:09:41,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:41,920 INFO L225 Difference]: With dead ends: 87 [2021-08-29 12:09:41,920 INFO L226 Difference]: Without dead ends: 48 [2021-08-29 12:09:41,920 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.07ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:09:41,921 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4315.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4340.14ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:41,922 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 142 Unknown, 0 Unchecked, 1.97ms Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 2 Unknown, 0 Unchecked, 4340.14ms Time] [2021-08-29 12:09:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-08-29 12:09:41,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-08-29 12:09:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 47 states have internal predecessors, (52), 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) [2021-08-29 12:09:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-08-29 12:09:41,929 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 10 [2021-08-29 12:09:41,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:41,929 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-08-29 12:09:41,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-29 12:09:41,930 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-08-29 12:09:41,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 12:09:41,930 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:41,931 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:41,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 12:09:41,931 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:41,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1420419469, now seen corresponding path program 1 times [2021-08-29 12:09:41,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:41,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400225624] [2021-08-29 12:09:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:41,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:42,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:42,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400225624] [2021-08-29 12:09:42,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400225624] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:42,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:42,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 12:09:42,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642950855] [2021-08-29 12:09:42,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 12:09:42,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:42,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 12:09:42,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:09:42,129 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-29 12:09:44,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:46,509 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:48,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:48,383 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2021-08-29 12:09:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 12:09:48,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2021-08-29 12:09:48,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:48,386 INFO L225 Difference]: With dead ends: 117 [2021-08-29 12:09:48,386 INFO L226 Difference]: Without dead ends: 78 [2021-08-29 12:09:48,387 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.03ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 12:09:48,388 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6113.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.70ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6192.88ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:48,388 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 218 Unknown, 0 Unchecked, 4.70ms Time], IncrementalHoareTripleChecker [24 Valid, 192 Invalid, 2 Unknown, 0 Unchecked, 6192.88ms Time] [2021-08-29 12:09:48,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-08-29 12:09:48,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 63. [2021-08-29 12:09:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 62 states have internal predecessors, (74), 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) [2021-08-29 12:09:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2021-08-29 12:09:48,406 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 11 [2021-08-29 12:09:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:48,406 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2021-08-29 12:09:48,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-08-29 12:09:48,407 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2021-08-29 12:09:48,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 12:09:48,408 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:48,408 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:48,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 12:09:48,409 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:48,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:48,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1083313625, now seen corresponding path program 1 times [2021-08-29 12:09:48,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:48,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383767914] [2021-08-29 12:09:48,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:48,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:48,433 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 12:09:48,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715845676] [2021-08-29 12:09:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:48,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:48,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:09:48,442 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) [2021-08-29 12:09:48,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 12:09:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:48,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 12:09:48,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:09:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:48,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 12:09:48,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:48,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383767914] [2021-08-29 12:09:48,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-29 12:09:48,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715845676] [2021-08-29 12:09:48,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715845676] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:48,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:48,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 12:09:48,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76767390] [2021-08-29 12:09:48,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 12:09:48,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:48,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 12:09:48,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:09:48,576 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 12:09:50,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:50,725 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-08-29 12:09:50,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 12:09:50,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 12:09:50,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:50,726 INFO L225 Difference]: With dead ends: 76 [2021-08-29 12:09:50,726 INFO L226 Difference]: Without dead ends: 64 [2021-08-29 12:09:50,727 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.44ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:09:50,728 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2114.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2136.99ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:50,728 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 193 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 2136.99ms Time] [2021-08-29 12:09:50,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-29 12:09:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2021-08-29 12:09:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 62 states have internal predecessors, (73), 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) [2021-08-29 12:09:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2021-08-29 12:09:50,735 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 12 [2021-08-29 12:09:50,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:50,736 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2021-08-29 12:09:50,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 12:09:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2021-08-29 12:09:50,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 12:09:50,736 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:50,736 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:50,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-29 12:09:50,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:50,961 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:50,962 INFO L82 PathProgramCache]: Analyzing trace with hash 776646742, now seen corresponding path program 1 times [2021-08-29 12:09:50,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:50,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250546259] [2021-08-29 12:09:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:50,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:50,979 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 12:09:50,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278721174] [2021-08-29 12:09:50,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:50,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:50,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:09:50,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 12:09:50,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-29 12:09:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:51,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 12:09:51,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:09:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:51,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 12:09:51,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:51,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250546259] [2021-08-29 12:09:51,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-29 12:09:51,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278721174] [2021-08-29 12:09:51,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278721174] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:09:51,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:09:51,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 12:09:51,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768753662] [2021-08-29 12:09:51,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 12:09:51,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:51,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 12:09:51,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:09:51,130 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-29 12:09:54,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:56,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:09:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:09:56,290 INFO L93 Difference]: Finished difference Result 108 states and 122 transitions. [2021-08-29 12:09:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 12:09:56,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-08-29 12:09:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:09:56,292 INFO L225 Difference]: With dead ends: 108 [2021-08-29 12:09:56,292 INFO L226 Difference]: Without dead ends: 92 [2021-08-29 12:09:56,292 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.12ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:09:56,293 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5111.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5140.83ms IncrementalHoareTripleChecker+Time [2021-08-29 12:09:56,293 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 171 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [17 Valid, 152 Invalid, 2 Unknown, 0 Unchecked, 5140.83ms Time] [2021-08-29 12:09:56,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-08-29 12:09:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2021-08-29 12:09:56,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 79 states have internal predecessors, (91), 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) [2021-08-29 12:09:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2021-08-29 12:09:56,305 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 13 [2021-08-29 12:09:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:09:56,305 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-08-29 12:09:56,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-29 12:09:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2021-08-29 12:09:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 12:09:56,306 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:09:56,306 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:09:56,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-29 12:09:56,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:56,519 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:09:56,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:09:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2047013432, now seen corresponding path program 1 times [2021-08-29 12:09:56,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:09:56,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325069088] [2021-08-29 12:09:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:56,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:09:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:56,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:09:56,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325069088] [2021-08-29 12:09:56,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325069088] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 12:09:56,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284554636] [2021-08-29 12:09:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:09:56,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:09:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:09:56,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 12:09:56,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-29 12:09:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:09:56,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 12:09:56,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:09:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:56,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 12:09:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:09:56,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284554636] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 12:09:56,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 12:09:56,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 6 [2021-08-29 12:09:56,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629335082] [2021-08-29 12:09:56,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 12:09:56,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:09:56,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 12:09:56,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-29 12:09:56,696 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-08-29 12:09:58,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:10:00,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-08-29 12:10:02,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:10:02,821 INFO L93 Difference]: Finished difference Result 138 states and 157 transitions. [2021-08-29 12:10:02,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 12:10:02,822 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 13 [2021-08-29 12:10:02,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:10:02,823 INFO L225 Difference]: With dead ends: 138 [2021-08-29 12:10:02,824 INFO L226 Difference]: Without dead ends: 82 [2021-08-29 12:10:02,824 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 19.91ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-29 12:10:02,825 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6070.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6110.39ms IncrementalHoareTripleChecker+Time [2021-08-29 12:10:02,825 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 241 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 2 Unknown, 0 Unchecked, 6110.39ms Time] [2021-08-29 12:10:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-08-29 12:10:02,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-08-29 12:10:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 73 states have (on average 1.273972602739726) internal successors, (93), 81 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) [2021-08-29 12:10:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2021-08-29 12:10:02,835 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 13 [2021-08-29 12:10:02,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:10:02,836 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2021-08-29 12:10:02,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-08-29 12:10:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2021-08-29 12:10:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 12:10:02,836 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:10:02,837 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:10:02,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-08-29 12:10:03,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:10:03,049 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:10:03,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:10:03,050 INFO L82 PathProgramCache]: Analyzing trace with hash -918298294, now seen corresponding path program 1 times [2021-08-29 12:10:03,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:10:03,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659325030] [2021-08-29 12:10:03,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:10:03,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:10:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:10:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:10:03,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:10:03,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659325030] [2021-08-29 12:10:03,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659325030] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 12:10:03,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3493872] [2021-08-29 12:10:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:10:03,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:10:03,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:10:03,145 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 12:10:03,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-29 12:10:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:10:03,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 12:10:03,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:10:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:10:03,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 12:10:03,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3493872] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:10:03,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 12:10:03,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2021-08-29 12:10:03,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575877321] [2021-08-29 12:10:03,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 12:10:03,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:10:03,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 12:10:03,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-29 12:10:03,236 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-08-29 12:10:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:10:04,422 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2021-08-29 12:10:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 12:10:04,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2021-08-29 12:10:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:10:04,423 INFO L225 Difference]: With dead ends: 90 [2021-08-29 12:10:04,423 INFO L226 Difference]: Without dead ends: 34 [2021-08-29 12:10:04,423 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.62ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-08-29 12:10:04,424 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1154.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1173.46ms IncrementalHoareTripleChecker+Time [2021-08-29 12:10:04,424 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 84 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 1173.46ms Time] [2021-08-29 12:10:04,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-08-29 12:10:04,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-08-29 12:10:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 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) [2021-08-29 12:10:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-08-29 12:10:04,428 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 14 [2021-08-29 12:10:04,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:10:04,429 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-08-29 12:10:04,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-08-29 12:10:04,429 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-08-29 12:10:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 12:10:04,435 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:10:04,435 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:10:04,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-29 12:10:04,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:10:04,645 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:10:04,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:10:04,646 INFO L82 PathProgramCache]: Analyzing trace with hash -966633767, now seen corresponding path program 1 times [2021-08-29 12:10:04,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:10:04,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801428148] [2021-08-29 12:10:04,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:10:04,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:10:04,657 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 12:10:04,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541037] [2021-08-29 12:10:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:10:04,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:10:04,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:10:04,661 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 12:10:04,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-29 12:10:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:10:04,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-29 12:10:04,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:10:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 12:10:04,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 12:10:04,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:10:04,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801428148] [2021-08-29 12:10:04,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-29 12:10:04,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541037] [2021-08-29 12:10:04,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541037] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:10:04,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:10:04,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 12:10:04,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788935730] [2021-08-29 12:10:04,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 12:10:04,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:10:04,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 12:10:04,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:10:04,833 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-08-29 12:10:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:10:05,012 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2021-08-29 12:10:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 12:10:05,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-08-29 12:10:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:10:05,013 INFO L225 Difference]: With dead ends: 38 [2021-08-29 12:10:05,013 INFO L226 Difference]: Without dead ends: 18 [2021-08-29 12:10:05,014 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.06ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:10:05,015 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168.94ms IncrementalHoareTripleChecker+Time [2021-08-29 12:10:05,015 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 69 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 168.94ms Time] [2021-08-29 12:10:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-08-29 12:10:05,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-08-29 12:10:05,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-08-29 12:10:05,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-08-29 12:10:05,017 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2021-08-29 12:10:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:10:05,017 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-08-29 12:10:05,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2021-08-29 12:10:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-08-29 12:10:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-29 12:10:05,018 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 12:10:05,018 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 12:10:05,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-29 12:10:05,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:10:05,219 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-08-29 12:10:05,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 12:10:05,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1597540912, now seen corresponding path program 1 times [2021-08-29 12:10:05,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 12:10:05,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9191573] [2021-08-29 12:10:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:10:05,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 12:10:05,227 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-08-29 12:10:05,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988480515] [2021-08-29 12:10:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 12:10:05,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:10:05,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 12:10:05,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 12:10:05,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-29 12:10:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 12:10:05,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 12:10:05,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 12:10:05,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 12:10:05,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 12:10:05,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 12:10:05,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9191573] [2021-08-29 12:10:05,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-08-29 12:10:05,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988480515] [2021-08-29 12:10:05,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988480515] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 12:10:05,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 12:10:05,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 12:10:05,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633973522] [2021-08-29 12:10:05,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 12:10:05,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 12:10:05,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 12:10:05,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 12:10:05,387 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-29 12:10:05,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 12:10:05,414 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-08-29 12:10:05,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 12:10:05,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 15 [2021-08-29 12:10:05,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 12:10:05,415 INFO L225 Difference]: With dead ends: 18 [2021-08-29 12:10:05,415 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 12:10:05,415 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.39ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 12:10:05,416 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.98ms IncrementalHoareTripleChecker+Time [2021-08-29 12:10:05,416 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.10ms Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 19.98ms Time] [2021-08-29 12:10:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 12:10:05,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 12:10:05,422 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) [2021-08-29 12:10:05,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 12:10:05,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-08-29 12:10:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 12:10:05,422 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 12:10:05,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-08-29 12:10:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 12:10:05,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 12:10:05,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2021-08-29 12:10:05,427 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2021-08-29 12:10:05,427 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2021-08-29 12:10:05,427 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2021-08-29 12:10:05,427 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2021-08-29 12:10:05,427 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2021-08-29 12:10:05,427 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2021-08-29 12:10:05,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2021-08-29 12:10:05,431 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2021-08-29 12:10:05,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-08-29 12:10:05,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 12:10:05,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 12:10:05,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 12:10:05,911 INFO L861 garLoopResultBuilder]: At program point L60(lines 20 61) the Hoare annotation is: true [2021-08-29 12:10:05,911 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,911 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-08-29 12:10:05,911 INFO L858 garLoopResultBuilder]: For program point L52-2(lines 20 61) no Hoare annotation was computed. [2021-08-29 12:10:05,911 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L854 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (and (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0) (<= (+ ULTIMATE.start_main_~r~0 (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) 1 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296))) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,912 INFO L858 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L854 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 0) (<= (+ ULTIMATE.start_main_~r~0 (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) 1 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296))) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,912 INFO L858 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L854 garLoopResultBuilder]: At program point L12-8(lines 11 17) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 0) (<= (+ ULTIMATE.start_main_~r~0 (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) 1 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296))) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,912 INFO L858 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L854 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 0) (<= (+ ULTIMATE.start_main_~r~0 (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) 1 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296))) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,912 INFO L858 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,912 INFO L854 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 0) (<= (+ ULTIMATE.start_main_~r~0 (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) 1 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296))) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L854 garLoopResultBuilder]: At program point L12-17(lines 46 47) the Hoare annotation is: (and (<= 2 ~counter~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 0) (<= (+ ULTIMATE.start_main_~r~0 (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) 1 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296))) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L854 garLoopResultBuilder]: At program point L12-20(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~p~0 0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L854 garLoopResultBuilder]: At program point L12-23(lines 11 17) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L861 garLoopResultBuilder]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,913 INFO L858 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 56) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L854 garLoopResultBuilder]: At program point L30-3(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~p~0 0)) (.cse1 (= ULTIMATE.start_main_~h~0 0)) (.cse2 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0))) (or (and .cse0 (<= 1 ~counter~0) .cse1 .cse2) (and .cse0 (= ~counter~0 0) (= ULTIMATE.start_main_~q~0 1) .cse1 .cse2))) [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 12:10:05,914 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,915 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,915 INFO L858 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-08-29 12:10:05,915 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 12:10:05,915 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,915 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-08-29 12:10:05,915 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-29 12:10:05,919 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 12:10:05,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 12:10:05 BoogieIcfgContainer [2021-08-29 12:10:05,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 12:10:05,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 12:10:05,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 12:10:05,937 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 12:10:05,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 12:09:34" (3/4) ... [2021-08-29 12:10:05,939 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 12:10:05,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-08-29 12:10:05,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 12:10:05,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 12:10:05,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 12:10:06,036 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 12:10:06,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 12:10:06,037 INFO L158 Benchmark]: Toolchain (without parser) took 31796.12ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 41.3MB in the beginning and 48.4MB in the end (delta: -7.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2021-08-29 12:10:06,037 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.2MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 12:10:06,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.15ms. Allocated memory is still 56.6MB. Free memory was 41.2MB in the beginning and 40.0MB in the end (delta: 1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 12:10:06,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.30ms. Allocated memory is still 56.6MB. Free memory was 39.8MB in the beginning and 37.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 12:10:06,038 INFO L158 Benchmark]: Boogie Preprocessor took 31.13ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 36.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 12:10:06,038 INFO L158 Benchmark]: RCFGBuilder took 294.76ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 39.1MB in the end (delta: -2.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-08-29 12:10:06,039 INFO L158 Benchmark]: TraceAbstraction took 31021.95ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 38.6MB in the beginning and 26.6MB in the end (delta: 12.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2021-08-29 12:10:06,039 INFO L158 Benchmark]: Witness Printer took 100.05ms. Allocated memory is still 69.2MB. Free memory was 26.6MB in the beginning and 48.4MB in the end (delta: -21.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 12:10:06,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.2MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.15ms. Allocated memory is still 56.6MB. Free memory was 41.2MB in the beginning and 40.0MB in the end (delta: 1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.30ms. Allocated memory is still 56.6MB. Free memory was 39.8MB in the beginning and 37.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.13ms. Allocated memory is still 56.6MB. Free memory was 37.9MB in the beginning and 36.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.76ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 39.1MB in the end (delta: -2.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 31021.95ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 38.6MB in the beginning and 26.6MB in the end (delta: 12.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Witness Printer took 100.05ms. Allocated memory is still 69.2MB. Free memory was 26.6MB in the beginning and 48.4MB in the end (delta: -21.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: 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, 50 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 30945.54ms, OverallIterations: 9, TraceHistogramMax: 2, EmptinessCheckTime: 26.00ms, AutomataDifference: 27746.03ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 275.04ms, InitialAbstractionConstructionTime: 12.29ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 27478.17ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 27231.19ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 595 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1134 IncrementalHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 0 mSDtfsCounter, 1134 mSolverCounterSat, 12.07ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 154.66ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=6, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 73.16ms AutomataMinimizationTime, 9 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 24 NumberOfFragments, 318 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 61.76ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 172 FormulaSimplificationTreeSizeReductionInter, 205.69ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 41.09ms SsaConstructionTime, 235.98ms SatisfiabilityAnalysisTime, 866.53ms InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 590 SizeOfPredicates, 20 NumberOfNonLiveVariables, 422 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 7/15 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 9 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((2 <= counter && p == 0) && r + 4294967296 * ((q + p * 2) / 4294967296) + 1 + 4294967296 * (q / 4294967296) <= q + 4294967296 * (r / 4294967296)) && q == 1) && h == 0) && !(0 == cond)) && n == r - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((2 <= counter && 1 <= cond) && p == 0) && r + 4294967296 * ((q + p * 2) / 4294967296) + 1 + 4294967296 * (q / 4294967296) <= q + 4294967296 * (r / 4294967296)) && q == 1) && h == 0) && n == r - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (1 <= cond && p == 0) && n == r - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((2 <= counter && 1 <= cond) && p == 0) && r + 4294967296 * ((q + p * 2) / 4294967296) + 1 + 4294967296 * (q / 4294967296) <= q + 4294967296 * (r / 4294967296)) && q == 1) && h == 0) && n == r - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (p == 0 && !(0 == cond)) && n == r - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((2 <= counter && 1 <= cond) && p == 0) && r + 4294967296 * ((q + p * 2) / 4294967296) + 1 + 4294967296 * (q / 4294967296) <= q + 4294967296 * (r / 4294967296)) && q == 1) && h == 0) && n == r - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((2 <= counter && 1 <= cond) && p == 0) && r + 4294967296 * ((q + p * 2) / 4294967296) + 1 + 4294967296 * (q / 4294967296) <= q + 4294967296 * (r / 4294967296)) && q == 1) && h == 0) && n == r - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((p == 0 && 1 <= counter) && h == 0) && n == r) || ((((p == 0 && counter == 0) && q == 1) && h == 0) && n == r) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((2 <= counter && 1 <= cond) && p == 0) && r + 4294967296 * ((q + p * 2) / 4294967296) + 1 + 4294967296 * (q / 4294967296) <= q + 4294967296 * (r / 4294967296)) && q == 1) && h == 0) && n == r RESULT: Ultimate proved your program to be correct! [2021-08-29 12:10:06,067 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...