./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94596b36b24d04639813cccc1625ed66ec56e5fc ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94596b36b24d04639813cccc1625ed66ec56e5fc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:45:15,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:45:15,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:45:15,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:45:15,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:45:15,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:45:15,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:45:15,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:45:15,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:45:15,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:45:15,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:45:15,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:45:15,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:45:15,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:45:15,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:45:15,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:45:15,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:45:15,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:45:15,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:45:15,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:45:15,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:45:15,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:45:15,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:45:15,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:45:15,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:45:15,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:45:15,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:45:15,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:45:15,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:45:15,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:45:15,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:45:15,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:45:15,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:45:15,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:45:15,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:45:15,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:45:15,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:45:15,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:45:15,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:45:15,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:45:15,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:45:15,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:45:15,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:45:15,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:45:15,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:45:15,342 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:45:15,343 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:45:15,343 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:45:15,343 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:45:15,344 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:45:15,344 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:45:15,344 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:45:15,345 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:45:15,345 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:45:15,345 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:45:15,345 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:45:15,346 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:45:15,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:45:15,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:45:15,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:45:15,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:45:15,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:45:15,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:45:15,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:45:15,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:45:15,349 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:45:15,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:45:15,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:45:15,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:45:15,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:45:15,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:45:15,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:45:15,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:45:15,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:45:15,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:45:15,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:45:15,352 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:45:15,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:45:15,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:45:15,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:45:15,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:45:15,354 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94596b36b24d04639813cccc1625ed66ec56e5fc [2021-10-16 02:45:15,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:45:15,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:45:15,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:45:15,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:45:15,694 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:45:15,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-16 02:45:15,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/fe4dd2c3f/77d4aeb6677a429db9d531fc3c3900b8/FLAGf1a70ae8f [2021-10-16 02:45:16,444 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:45:16,445 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-16 02:45:16,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/fe4dd2c3f/77d4aeb6677a429db9d531fc3c3900b8/FLAGf1a70ae8f [2021-10-16 02:45:16,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/fe4dd2c3f/77d4aeb6677a429db9d531fc3c3900b8 [2021-10-16 02:45:16,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:45:16,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:45:16,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:45:16,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:45:16,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:45:16,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:45:16" (1/1) ... [2021-10-16 02:45:16,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f60831c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:16, skipping insertion in model container [2021-10-16 02:45:16,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:45:16" (1/1) ... [2021-10-16 02:45:16,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:45:16,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:45:17,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-16 02:45:17,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:45:17,433 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:45:17,458 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-16 02:45:17,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:45:17,604 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:45:17,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17 WrapperNode [2021-10-16 02:45:17,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:45:17,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:45:17,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:45:17,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:45:17,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:45:17,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:45:17,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:45:17,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:45:17,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:45:17,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:45:17,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:45:17,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:45:17,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (1/1) ... [2021-10-16 02:45:17,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:45:17,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:45:17,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:45:17,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:45:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:45:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:45:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:45:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:45:33,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:45:33,287 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:45:33,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:45:33 BoogieIcfgContainer [2021-10-16 02:45:33,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:45:33,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:45:33,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:45:33,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:45:33,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:45:16" (1/3) ... [2021-10-16 02:45:33,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37382245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:45:33, skipping insertion in model container [2021-10-16 02:45:33,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:45:17" (2/3) ... [2021-10-16 02:45:33,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37382245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:45:33, skipping insertion in model container [2021-10-16 02:45:33,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:45:33" (3/3) ... [2021-10-16 02:45:33,304 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label23.c [2021-10-16 02:45:33,311 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:45:33,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:45:33,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:45:33,400 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 [2021-10-16 02:45:33,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:45:33,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) [2021-10-16 02:45:33,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:45:33,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:45:33,429 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:45:33,431 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:45:33,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:45:33,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1065480459, now seen corresponding path program 1 times [2021-10-16 02:45:33,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:45:33,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686913411] [2021-10-16 02:45:33,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:45:33,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:45:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:45:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:45:33,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:45:33,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686913411] [2021-10-16 02:45:33,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686913411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:45:33,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:45:33,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:45:33,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492750039] [2021-10-16 02:45:33,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:45:33,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:45:33,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:45:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:45:33,725 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:45:33,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:45:33,832 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-16 02:45:33,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:45:33,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:45:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:45:33,845 INFO L225 Difference]: With dead ends: 23 [2021-10-16 02:45:33,846 INFO L226 Difference]: Without dead ends: 11 [2021-10-16 02:45:33,850 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:45:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-16 02:45:33,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-16 02:45:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2021-10-16 02:45:33,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-16 02:45:33,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-16 02:45:33,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:45:33,889 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-16 02:45:33,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:45:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-16 02:45:33,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:45:33,890 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:45:33,891 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-16 02:45:33,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:45:33,892 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:45:33,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:45:33,897 INFO L82 PathProgramCache]: Analyzing trace with hash 703653921, now seen corresponding path program 1 times [2021-10-16 02:45:33,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:45:33,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715679690] [2021-10-16 02:45:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:45:33,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:45:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:45:34,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:45:34,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:45:34,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715679690] [2021-10-16 02:45:34,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715679690] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:45:34,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091049011] [2021-10-16 02:45:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:45:34,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:45:34,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:45:34,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:45:34,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:45:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:45:34,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:45:34,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:45:44,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:45:44,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:01,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-16 02:46:01,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [356574195] [2021-10-16 02:46:01,546 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:46:01,547 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:46:01,552 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:46:01,557 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:46:01,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:46:01,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:01,590 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:46:01,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:01,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:46:01,596 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:46:01,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:01,598 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:46:01,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 02:46:01,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:01,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:01,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:01,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 02:46:01,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:01,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:46:01,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:01,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:46:01,666 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:46:01,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:46:01,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:01,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:01,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 02:46:01,734 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:46:01,735 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-16 02:46:01,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:01,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:46:01,950 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 02:46:01,955 INFO L168 Benchmark]: Toolchain (without parser) took 45318.39 ms. Allocated memory was 86.0 MB in the beginning and 2.7 GB in the end (delta: 2.7 GB). Free memory was 47.8 MB in the beginning and 1.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2021-10-16 02:46:01,955 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 65.9 MB in the beginning and 65.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:01,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 968.24 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 47.6 MB in the beginning and 65.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:01,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 174.10 ms. Allocated memory is still 111.1 MB. Free memory was 65.4 MB in the beginning and 55.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:01,958 INFO L168 Benchmark]: Boogie Preprocessor took 136.40 ms. Allocated memory is still 111.1 MB. Free memory was 55.6 MB in the beginning and 49.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:01,959 INFO L168 Benchmark]: RCFGBuilder took 15371.93 ms. Allocated memory was 111.1 MB in the beginning and 641.7 MB in the end (delta: 530.6 MB). Free memory was 49.8 MB in the beginning and 438.4 MB in the end (delta: -388.6 MB). Peak memory consumption was 223.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:01,959 INFO L168 Benchmark]: TraceAbstraction took 28660.06 ms. Allocated memory was 641.7 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 438.4 MB in the beginning and 1.2 GB in the end (delta: -801.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. [2021-10-16 02:46:01,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory was 65.9 MB in the beginning and 65.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 968.24 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 47.6 MB in the beginning and 65.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 174.10 ms. Allocated memory is still 111.1 MB. Free memory was 65.4 MB in the beginning and 55.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 136.40 ms. Allocated memory is still 111.1 MB. Free memory was 55.6 MB in the beginning and 49.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15371.93 ms. Allocated memory was 111.1 MB in the beginning and 641.7 MB in the end (delta: 530.6 MB). Free memory was 49.8 MB in the beginning and 438.4 MB in the end (delta: -388.6 MB). Peak memory consumption was 223.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28660.06 ms. Allocated memory was 641.7 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 438.4 MB in the beginning and 1.2 GB in the end (delta: -801.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:46:02,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:46:04,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:46:04,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:46:04,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:46:04,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:46:04,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:46:04,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:46:04,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:46:04,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:46:04,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:46:04,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:46:04,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:46:04,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:46:04,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:46:04,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:46:04,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:46:04,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:46:04,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:46:04,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:46:04,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:46:04,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:46:04,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:46:04,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:46:04,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:46:04,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:46:04,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:46:04,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:46:04,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:46:04,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:46:04,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:46:04,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:46:04,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:46:04,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:46:04,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:46:04,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:46:04,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:46:04,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:46:04,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:46:04,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:46:05,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:46:05,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:46:05,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:46:05,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:46:05,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:46:05,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:46:05,035 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:46:05,035 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:46:05,036 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:46:05,036 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:46:05,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:46:05,036 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:46:05,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:46:05,038 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:46:05,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:46:05,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:46:05,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:46:05,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:46:05,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:46:05,039 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:46:05,040 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:46:05,040 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:46:05,040 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:46:05,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:46:05,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:46:05,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:46:05,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:46:05,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:46:05,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:46:05,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:05,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:46:05,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:46:05,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:46:05,043 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:46:05,044 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:46:05,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:46:05,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:46:05,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:46:05,045 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94596b36b24d04639813cccc1625ed66ec56e5fc [2021-10-16 02:46:05,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:46:05,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:46:05,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:46:05,532 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:46:05,533 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:46:05,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-16 02:46:05,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/457391bc2/e060370e4b58456e877d3e37e7cfd0e6/FLAGc2fee01bd [2021-10-16 02:46:06,333 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:46:06,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-16 02:46:06,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/457391bc2/e060370e4b58456e877d3e37e7cfd0e6/FLAGc2fee01bd [2021-10-16 02:46:06,569 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/data/457391bc2/e060370e4b58456e877d3e37e7cfd0e6 [2021-10-16 02:46:06,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:46:06,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:46:06,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:06,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:46:06,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:46:06,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:06" (1/1) ... [2021-10-16 02:46:06,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50129477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:06, skipping insertion in model container [2021-10-16 02:46:06,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:06" (1/1) ... [2021-10-16 02:46:06,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:46:06,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:46:07,022 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-16 02:46:07,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:07,386 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:46:07,408 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-16 02:46:07,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:07,629 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:46:07,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07 WrapperNode [2021-10-16 02:46:07,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:07,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:07,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:46:07,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:46:07,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:07,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:46:07,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:46:07,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:46:07,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:46:07,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:46:07,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:46:07,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:46:07,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (1/1) ... [2021-10-16 02:46:07,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:07,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:07,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:46:07,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:46:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:46:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:46:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:46:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:46:11,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:46:11,820 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:46:11,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:11 BoogieIcfgContainer [2021-10-16 02:46:11,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:46:11,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:46:11,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:46:11,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:46:11,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:46:06" (1/3) ... [2021-10-16 02:46:11,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ae8282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:11, skipping insertion in model container [2021-10-16 02:46:11,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:07" (2/3) ... [2021-10-16 02:46:11,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ae8282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:11, skipping insertion in model container [2021-10-16 02:46:11,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:11" (3/3) ... [2021-10-16 02:46:11,833 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label23.c [2021-10-16 02:46:11,839 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:46:11,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:46:11,898 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:46:11,905 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 [2021-10-16 02:46:11,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:46:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2021-10-16 02:46:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 02:46:11,936 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:11,937 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:11,938 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:11,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:11,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1317301102, now seen corresponding path program 1 times [2021-10-16 02:46:11,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:11,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768515289] [2021-10-16 02:46:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:11,965 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:11,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:11,969 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:12,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:46:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:12,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:46:12,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:12,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:12,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:12,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768515289] [2021-10-16 02:46:12,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768515289] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:12,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:12,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:46:12,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165198985] [2021-10-16 02:46:12,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:46:12,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:46:12,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:12,600 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-10-16 02:46:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:19,360 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-10-16 02:46:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:46:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 32 [2021-10-16 02:46:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:19,387 INFO L225 Difference]: With dead ends: 850 [2021-10-16 02:46:19,389 INFO L226 Difference]: Without dead ends: 538 [2021-10-16 02:46:19,398 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:19,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-16 02:46:19,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-10-16 02:46:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5381750465549349) internal successors, (826), 537 states have internal predecessors, (826), 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) [2021-10-16 02:46:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 826 transitions. [2021-10-16 02:46:19,519 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 826 transitions. Word has length 32 [2021-10-16 02:46:19,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:19,520 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 826 transitions. [2021-10-16 02:46:19,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-10-16 02:46:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 826 transitions. [2021-10-16 02:46:19,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-10-16 02:46:19,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:19,535 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:19,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:46:19,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:19,745 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:19,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:19,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1787449229, now seen corresponding path program 1 times [2021-10-16 02:46:19,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:19,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791876168] [2021-10-16 02:46:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:19,749 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:19,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:19,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:19,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:46:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:19,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:46:19,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:20,669 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-16 02:46:20,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:21,267 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-16 02:46:21,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:21,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791876168] [2021-10-16 02:46:21,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791876168] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:21,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:21,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:46:21,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594226182] [2021-10-16 02:46:21,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:46:21,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:21,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:46:21,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:21,273 INFO L87 Difference]: Start difference. First operand 538 states and 826 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2021-10-16 02:46:27,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:27,012 INFO L93 Difference]: Finished difference Result 1964 states and 3003 transitions. [2021-10-16 02:46:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:46:27,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 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 167 [2021-10-16 02:46:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:27,023 INFO L225 Difference]: With dead ends: 1964 [2021-10-16 02:46:27,023 INFO L226 Difference]: Without dead ends: 1428 [2021-10-16 02:46:27,026 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:27,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2021-10-16 02:46:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2021-10-16 02:46:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.4218640504555011) internal successors, (2029), 1427 states have internal predecessors, (2029), 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) [2021-10-16 02:46:27,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2029 transitions. [2021-10-16 02:46:27,083 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2029 transitions. Word has length 167 [2021-10-16 02:46:27,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:27,084 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 2029 transitions. [2021-10-16 02:46:27,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2021-10-16 02:46:27,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2029 transitions. [2021-10-16 02:46:27,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-10-16 02:46:27,090 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:27,090 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:27,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:27,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:27,302 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:27,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:27,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1918875903, now seen corresponding path program 1 times [2021-10-16 02:46:27,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:27,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419655071] [2021-10-16 02:46:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:27,306 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:27,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:27,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:27,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:46:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:27,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:46:27,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-16 02:46:28,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-16 02:46:28,684 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:28,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419655071] [2021-10-16 02:46:28,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419655071] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:28,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:28,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:46:28,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287641373] [2021-10-16 02:46:28,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:46:28,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:28,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:46:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:28,688 INFO L87 Difference]: Start difference. First operand 1428 states and 2029 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-10-16 02:46:41,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:41,083 INFO L93 Difference]: Finished difference Result 4456 states and 6356 transitions. [2021-10-16 02:46:41,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:46:41,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 170 [2021-10-16 02:46:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:41,106 INFO L225 Difference]: With dead ends: 4456 [2021-10-16 02:46:41,106 INFO L226 Difference]: Without dead ends: 3030 [2021-10-16 02:46:41,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:41,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-16 02:46:41,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-10-16 02:46:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.3202377022119511) internal successors, (3999), 3029 states have internal predecessors, (3999), 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) [2021-10-16 02:46:41,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3999 transitions. [2021-10-16 02:46:41,226 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3999 transitions. Word has length 170 [2021-10-16 02:46:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:41,229 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3999 transitions. [2021-10-16 02:46:41,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-10-16 02:46:41,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3999 transitions. [2021-10-16 02:46:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-10-16 02:46:41,235 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:41,236 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:41,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:41,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:41,455 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:41,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:41,456 INFO L82 PathProgramCache]: Analyzing trace with hash 872689753, now seen corresponding path program 1 times [2021-10-16 02:46:41,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:41,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005493600] [2021-10-16 02:46:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:41,459 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:41,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:41,462 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:41,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:46:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:41,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:46:41,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:46:43,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:46:45,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:45,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005493600] [2021-10-16 02:46:45,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005493600] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:45,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:45,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-16 02:46:45,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328196011] [2021-10-16 02:46:45,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:46:45,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:45,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:46:45,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:46:45,708 INFO L87 Difference]: Start difference. First operand 3030 states and 3999 transitions. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 5 states have internal predecessors, (301), 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) [2021-10-16 02:46:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:53,229 INFO L93 Difference]: Finished difference Result 6116 states and 8102 transitions. [2021-10-16 02:46:53,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:46:53,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 5 states have internal predecessors, (301), 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 191 [2021-10-16 02:46:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:53,249 INFO L225 Difference]: With dead ends: 6116 [2021-10-16 02:46:53,250 INFO L226 Difference]: Without dead ends: 3208 [2021-10-16 02:46:53,254 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 63.1ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:46:53,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-16 02:46:53,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-10-16 02:46:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.1301297790249036) internal successors, (3222), 2851 states have internal predecessors, (3222), 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) [2021-10-16 02:46:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3222 transitions. [2021-10-16 02:46:53,356 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3222 transitions. Word has length 191 [2021-10-16 02:46:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:53,357 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3222 transitions. [2021-10-16 02:46:53,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 5 states have internal predecessors, (301), 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) [2021-10-16 02:46:53,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3222 transitions. [2021-10-16 02:46:53,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-10-16 02:46:53,368 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:53,368 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:53,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:53,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:53,583 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:53,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1551335768, now seen corresponding path program 1 times [2021-10-16 02:46:53,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:53,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899423522] [2021-10-16 02:46:53,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:53,589 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:53,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:53,592 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:53,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:46:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:54,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:46:54,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-10-16 02:46:56,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 335 proven. 105 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-10-16 02:46:59,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:59,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899423522] [2021-10-16 02:46:59,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899423522] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:46:59,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:46:59,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-16 02:46:59,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557400264] [2021-10-16 02:46:59,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:46:59,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:59,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:46:59,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:46:59,860 INFO L87 Difference]: Start difference. First operand 2852 states and 3222 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 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) [2021-10-16 02:47:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:01,672 INFO L93 Difference]: Finished difference Result 5702 states and 6444 transitions. [2021-10-16 02:47:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:47:01,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 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 406 [2021-10-16 02:47:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:01,692 INFO L225 Difference]: With dead ends: 5702 [2021-10-16 02:47:01,692 INFO L226 Difference]: Without dead ends: 3030 [2021-10-16 02:47:01,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 42.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-16 02:47:01,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-10-16 02:47:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.1231429514691318) internal successors, (3402), 3029 states have internal predecessors, (3402), 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) [2021-10-16 02:47:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3402 transitions. [2021-10-16 02:47:01,820 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3402 transitions. Word has length 406 [2021-10-16 02:47:01,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:01,821 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3402 transitions. [2021-10-16 02:47:01,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 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) [2021-10-16 02:47:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3402 transitions. [2021-10-16 02:47:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-10-16 02:47:01,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:01,837 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:01,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:02,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:02,054 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:47:02,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:02,055 INFO L82 PathProgramCache]: Analyzing trace with hash -719715171, now seen corresponding path program 1 times [2021-10-16 02:47:02,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:02,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478045514] [2021-10-16 02:47:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:02,058 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:02,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:02,059 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:02,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:47:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:03,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:47:03,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 415 proven. 347 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-10-16 02:47:06,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:10,802 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 762 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-10-16 02:47:10,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:10,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478045514] [2021-10-16 02:47:10,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478045514] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:47:10,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:47:10,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-16 02:47:10,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906568542] [2021-10-16 02:47:10,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:47:10,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:10,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:47:10,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:47:10,810 INFO L87 Difference]: Start difference. First operand 3030 states and 3402 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-10-16 02:47:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:15,567 INFO L93 Difference]: Finished difference Result 6236 states and 7047 transitions. [2021-10-16 02:47:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:47:15,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 501 [2021-10-16 02:47:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:15,585 INFO L225 Difference]: With dead ends: 6236 [2021-10-16 02:47:15,585 INFO L226 Difference]: Without dead ends: 3564 [2021-10-16 02:47:15,602 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1000 GetRequests, 997 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.1ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:47:15,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-16 02:47:15,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2021-10-16 02:47:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.103397341211226) internal successors, (3735), 3385 states have internal predecessors, (3735), 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) [2021-10-16 02:47:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3735 transitions. [2021-10-16 02:47:15,709 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3735 transitions. Word has length 501 [2021-10-16 02:47:15,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:15,711 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3735 transitions. [2021-10-16 02:47:15,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-10-16 02:47:15,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3735 transitions. [2021-10-16 02:47:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2021-10-16 02:47:15,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:15,744 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:15,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:15,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:15,964 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:47:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:15,965 INFO L82 PathProgramCache]: Analyzing trace with hash -335115246, now seen corresponding path program 1 times [2021-10-16 02:47:15,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:15,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771171356] [2021-10-16 02:47:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:15,968 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:15,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:15,969 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:15,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:47:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:17,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 02:47:17,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 955 proven. 707 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-10-16 02:47:29,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1482 proven. 180 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-10-16 02:47:51,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:51,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771171356] [2021-10-16 02:47:51,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771171356] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:47:51,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1709764567] [2021-10-16 02:47:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:51,063 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:47:51,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:47:51,065 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:47:51,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-16 02:47:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:55,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:47:55,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1211 proven. 241 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2021-10-16 02:47:58,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1211 proven. 241 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2021-10-16 02:48:01,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1709764567] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:01,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966347029] [2021-10-16 02:48:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:01,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:48:01,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:48:01,674 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:48:01,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 02:48:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:05,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:48:05,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1190 proven. 93 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-10-16 02:48:09,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1190 proven. 93 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-10-16 02:48:13,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966347029] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:13,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:48:13,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 6, 6, 4, 4] total 25 [2021-10-16 02:48:13,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351603321] [2021-10-16 02:48:13,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-16 02:48:13,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:48:13,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-16 02:48:13,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2021-10-16 02:48:13,746 INFO L87 Difference]: Start difference. First operand 3386 states and 3735 transitions. Second operand has 25 states, 25 states have (on average 58.88) internal successors, (1472), 25 states have internal predecessors, (1472), 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) [2021-10-16 02:48:25,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:48:25,937 INFO L93 Difference]: Finished difference Result 7496 states and 8223 transitions. [2021-10-16 02:48:25,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-16 02:48:25,938 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 58.88) internal successors, (1472), 25 states have internal predecessors, (1472), 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 740 [2021-10-16 02:48:25,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:48:25,958 INFO L225 Difference]: With dead ends: 7496 [2021-10-16 02:48:25,958 INFO L226 Difference]: Without dead ends: 4272 [2021-10-16 02:48:25,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4468 GetRequests, 4422 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2353.1ms TimeCoverageRelationStatistics Valid=514, Invalid=1742, Unknown=0, NotChecked=0, Total=2256 [2021-10-16 02:48:25,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2021-10-16 02:48:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 3363. [2021-10-16 02:48:26,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 3362 states have (on average 1.0755502676977988) internal successors, (3616), 3362 states have internal predecessors, (3616), 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) [2021-10-16 02:48:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 3616 transitions. [2021-10-16 02:48:26,037 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 3616 transitions. Word has length 740 [2021-10-16 02:48:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:48:26,038 INFO L470 AbstractCegarLoop]: Abstraction has 3363 states and 3616 transitions. [2021-10-16 02:48:26,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 58.88) internal successors, (1472), 25 states have internal predecessors, (1472), 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) [2021-10-16 02:48:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 3616 transitions. [2021-10-16 02:48:26,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2021-10-16 02:48:26,048 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:48:26,048 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:48:26,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:26,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:26,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:26,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:48:26,662 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:48:26,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:48:26,663 INFO L82 PathProgramCache]: Analyzing trace with hash 953445596, now seen corresponding path program 1 times [2021-10-16 02:48:26,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:48:26,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172792630] [2021-10-16 02:48:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:26,665 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:48:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:48:26,667 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:48:26,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 02:48:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:30,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:48:30,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 842 proven. 898 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-10-16 02:48:33,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:37,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 1320 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2021-10-16 02:48:37,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:48:37,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172792630] [2021-10-16 02:48:37,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172792630] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:48:37,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:48:37,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-16 02:48:37,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513663241] [2021-10-16 02:48:37,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:48:37,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:48:37,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:48:37,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:48:37,628 INFO L87 Difference]: Start difference. First operand 3363 states and 3616 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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) [2021-10-16 02:48:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:48:41,231 INFO L93 Difference]: Finished difference Result 7258 states and 7857 transitions. [2021-10-16 02:48:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:48:41,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 808 [2021-10-16 02:48:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:48:41,251 INFO L225 Difference]: With dead ends: 7258 [2021-10-16 02:48:41,252 INFO L226 Difference]: Without dead ends: 4075 [2021-10-16 02:48:41,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1610 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:48:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2021-10-16 02:48:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 3541. [2021-10-16 02:48:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3540 states have (on average 1.0754237288135593) internal successors, (3807), 3540 states have internal predecessors, (3807), 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) [2021-10-16 02:48:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 3807 transitions. [2021-10-16 02:48:41,331 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 3807 transitions. Word has length 808 [2021-10-16 02:48:41,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:48:41,332 INFO L470 AbstractCegarLoop]: Abstraction has 3541 states and 3807 transitions. [2021-10-16 02:48:41,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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) [2021-10-16 02:48:41,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 3807 transitions. [2021-10-16 02:48:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2021-10-16 02:48:41,341 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:48:41,342 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:48:41,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:41,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:48:41,567 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:48:41,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:48:41,567 INFO L82 PathProgramCache]: Analyzing trace with hash 488498908, now seen corresponding path program 1 times [2021-10-16 02:48:41,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:48:41,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364636292] [2021-10-16 02:48:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:41,571 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:48:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:48:41,573 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:48:41,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:48:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:46,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:48:46,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 1110 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2021-10-16 02:48:48,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 1110 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2021-10-16 02:48:50,099 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:48:50,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364636292] [2021-10-16 02:48:50,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364636292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:48:50,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:48:50,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:48:50,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795056761] [2021-10-16 02:48:50,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:48:50,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:48:50,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:48:50,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:48:50,102 INFO L87 Difference]: Start difference. First operand 3541 states and 3807 transitions. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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) [2021-10-16 02:48:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:48:53,171 INFO L93 Difference]: Finished difference Result 7258 states and 7836 transitions. [2021-10-16 02:48:53,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:48:53,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 817 [2021-10-16 02:48:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:48:53,189 INFO L225 Difference]: With dead ends: 7258 [2021-10-16 02:48:53,189 INFO L226 Difference]: Without dead ends: 3897 [2021-10-16 02:48:53,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1632 GetRequests, 1630 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:48:53,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2021-10-16 02:48:53,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3719. [2021-10-16 02:48:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3719 states, 3718 states have (on average 1.0712748789671867) internal successors, (3983), 3718 states have internal predecessors, (3983), 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) [2021-10-16 02:48:53,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3719 states to 3719 states and 3983 transitions. [2021-10-16 02:48:53,270 INFO L78 Accepts]: Start accepts. Automaton has 3719 states and 3983 transitions. Word has length 817 [2021-10-16 02:48:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:48:53,271 INFO L470 AbstractCegarLoop]: Abstraction has 3719 states and 3983 transitions. [2021-10-16 02:48:53,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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) [2021-10-16 02:48:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3719 states and 3983 transitions. [2021-10-16 02:48:53,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2021-10-16 02:48:53,280 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:48:53,281 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:48:53,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:53,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:48:53,498 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:48:53,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:48:53,498 INFO L82 PathProgramCache]: Analyzing trace with hash 960870671, now seen corresponding path program 1 times [2021-10-16 02:48:53,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:48:53,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30257910] [2021-10-16 02:48:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:53,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:48:53,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:48:53,502 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:48:53,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:48:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:58,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:48:58,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 525 proven. 1594 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2021-10-16 02:49:01,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 1416 proven. 130 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-10-16 02:49:15,247 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:49:15,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30257910] [2021-10-16 02:49:15,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30257910] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:49:15,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1390365363] [2021-10-16 02:49:15,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:15,248 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:49:15,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:49:15,249 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:49:15,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-16 02:49:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:22,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:49:22,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:25,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 698 proven. 30 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-16 02:49:25,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 704 proven. 24 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-16 02:49:28,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1390365363] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:49:28,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436877895] [2021-10-16 02:49:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:28,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:49:28,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:49:28,401 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:49:28,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-16 02:49:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:35,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:49:35,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-16 02:49:39,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-16 02:49:43,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436877895] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:49:43,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-16 02:49:43,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6, 5, 7, 7] total 23 [2021-10-16 02:49:43,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621578915] [2021-10-16 02:49:43,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 02:49:43,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:49:43,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 02:49:43,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2021-10-16 02:49:43,662 INFO L87 Difference]: Start difference. First operand 3719 states and 3983 transitions. Second operand has 7 states, 7 states have (on average 40.285714285714285) internal successors, (282), 6 states have internal predecessors, (282), 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) [2021-10-16 02:49:46,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:46,305 INFO L93 Difference]: Finished difference Result 5373 states and 5812 transitions. [2021-10-16 02:49:46,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:49:46,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 40.285714285714285) internal successors, (282), 6 states have internal predecessors, (282), 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 826 [2021-10-16 02:49:46,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:46,324 INFO L225 Difference]: With dead ends: 5373 [2021-10-16 02:49:46,324 INFO L226 Difference]: Without dead ends: 3719 [2021-10-16 02:49:46,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4950 GetRequests, 4927 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2894.6ms TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2021-10-16 02:49:46,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2021-10-16 02:49:46,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3719. [2021-10-16 02:49:46,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3719 states, 3718 states have (on average 1.064550833781603) internal successors, (3958), 3718 states have internal predecessors, (3958), 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) [2021-10-16 02:49:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3719 states to 3719 states and 3958 transitions. [2021-10-16 02:49:46,395 INFO L78 Accepts]: Start accepts. Automaton has 3719 states and 3958 transitions. Word has length 826 [2021-10-16 02:49:46,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:46,397 INFO L470 AbstractCegarLoop]: Abstraction has 3719 states and 3958 transitions. [2021-10-16 02:49:46,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.285714285714285) internal successors, (282), 6 states have internal predecessors, (282), 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) [2021-10-16 02:49:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3719 states and 3958 transitions. [2021-10-16 02:49:46,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2021-10-16 02:49:46,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:46,426 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:49:46,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:46,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:46,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:47,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:49:47,042 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:49:47,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:47,043 INFO L82 PathProgramCache]: Analyzing trace with hash -2117747245, now seen corresponding path program 1 times [2021-10-16 02:49:47,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:49:47,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487519821] [2021-10-16 02:49:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:47,047 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:49:47,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:49:47,048 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:49:47,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 02:49:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:53,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:49:53,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:56,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 239 proven. 2066 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2021-10-16 02:49:56,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:50:02,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 1662 proven. 70 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-16 02:50:02,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:50:02,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487519821] [2021-10-16 02:50:02,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487519821] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:50:02,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1200805866] [2021-10-16 02:50:02,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:50:02,045 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:50:02,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:50:02,046 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:50:02,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-16 02:50:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:50:11,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:50:11,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:50:13,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 2437 trivial. 0 not checked. [2021-10-16 02:50:13,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:50:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 2437 trivial. 0 not checked. [2021-10-16 02:50:14,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1200805866] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:50:14,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:50:14,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6, 5] total 12 [2021-10-16 02:50:14,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714094204] [2021-10-16 02:50:14,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:50:14,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:50:14,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:50:14,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-16 02:50:14,869 INFO L87 Difference]: Start difference. First operand 3719 states and 3958 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2021-10-16 02:50:18,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:50:18,327 INFO L93 Difference]: Finished difference Result 8324 states and 8911 transitions. [2021-10-16 02:50:18,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:50:18,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 923 [2021-10-16 02:50:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:50:18,330 INFO L225 Difference]: With dead ends: 8324 [2021-10-16 02:50:18,330 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:50:18,336 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3688 GetRequests, 3678 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 362.6ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-16 02:50:18,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:50:18,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:50:18,336 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) [2021-10-16 02:50:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:50:18,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 923 [2021-10-16 02:50:18,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:50:18,337 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:50:18,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2021-10-16 02:50:18,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:50:18,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:50:18,340 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:50:18,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-16 02:50:18,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-10-16 02:50:18,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:50:18,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:50:18,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:50:19,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:50:19,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:50:20,931 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-16 02:50:20,931 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-16 02:50:20,932 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,933 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,934 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-16 02:50:20,934 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-16 02:50:20,934 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-16 02:50:20,934 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-16 02:50:20,934 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-16 02:50:20,935 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-16 02:50:20,935 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-16 02:50:20,935 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-16 02:50:20,935 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-16 02:50:20,935 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,935 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,935 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,936 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-16 02:50:20,936 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-16 02:50:20,936 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-16 02:50:20,936 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-16 02:50:20,936 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-16 02:50:20,936 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-16 02:50:20,937 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-16 02:50:20,937 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,938 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,938 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,939 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-16 02:50:20,939 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-16 02:50:20,939 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-16 02:50:20,939 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-16 02:50:20,940 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-16 02:50:20,940 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-16 02:50:20,940 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-16 02:50:20,940 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-16 02:50:20,941 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,941 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,941 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,943 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-16 02:50:20,943 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-16 02:50:20,943 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-16 02:50:20,943 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-16 02:50:20,943 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-16 02:50:20,944 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-16 02:50:20,944 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-16 02:50:20,944 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-16 02:50:20,944 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,945 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,945 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,945 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-16 02:50:20,957 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-16 02:50:20,957 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-16 02:50:20,958 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-16 02:50:20,958 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-16 02:50:20,958 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-16 02:50:20,958 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-16 02:50:20,958 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-16 02:50:20,958 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-16 02:50:20,958 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:50:20,959 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,960 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,960 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,960 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-16 02:50:20,960 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-16 02:50:20,960 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-16 02:50:20,960 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-16 02:50:20,960 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-16 02:50:20,961 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-16 02:50:20,961 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-16 02:50:20,961 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-16 02:50:20,961 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-16 02:50:20,961 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,962 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,962 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,962 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-16 02:50:20,962 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-16 02:50:20,962 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-16 02:50:20,962 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-16 02:50:20,963 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-16 02:50:20,964 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-16 02:50:20,964 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:50:20,964 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-16 02:50:20,964 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2021-10-16 02:50:20,964 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-16 02:50:20,966 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-16 02:50:20,966 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-16 02:50:20,966 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-16 02:50:20,967 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,967 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,967 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,967 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-16 02:50:20,967 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-16 02:50:20,967 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-16 02:50:20,967 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,968 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-16 02:50:20,969 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,970 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,971 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,972 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,972 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-16 02:50:20,972 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-16 02:50:20,972 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-16 02:50:20,972 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-16 02:50:20,972 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-16 02:50:20,972 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-16 02:50:20,973 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-16 02:50:20,973 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-16 02:50:20,973 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,973 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,973 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-16 02:50:20,973 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-16 02:50:20,974 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-16 02:50:20,974 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-16 02:50:20,974 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-16 02:50:20,974 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-16 02:50:20,974 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-16 02:50:20,974 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-16 02:50:20,975 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,975 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,975 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-16 02:50:20,975 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:50:20,975 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-16 02:50:20,976 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-16 02:50:20,976 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-16 02:50:20,976 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-16 02:50:20,976 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-16 02:50:20,976 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,976 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,977 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse5 (= (_ bv1 32) ~a24~0)) (.cse6 (= (_ bv8 32) ~a15~0)) (.cse2 (= (_ bv6 32) ~a21~0)) (.cse7 (not (= ~a15~0 (_ bv9 32))))) (let ((.cse4 (not (= (_ bv10 32) ~a21~0))) (.cse0 (or (not .cse2) .cse7)) (.cse1 (not (= (_ bv6 32) ~a15~0))) (.cse8 (or (not .cse5) (not .cse6))) (.cse3 (not (bvslt (_ bv11 32) ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (not (bvslt (_ bv80 32) ~a12~0)) .cse5 .cse6) (and .cse4 (or .cse7 (not (bvsle ~a12~0 (_ bv4294967253 32)))) .cse5 .cse8) (and .cse0 .cse1 .cse5 .cse8) (and (not (= ~a21~0 (_ bv9 32))) (or (not (bvsge (_ bv80 32) ~a12~0)) .cse3) (not (= (_ bv7 32) ~a21~0)) .cse5 .cse6) (and (bvslt (_ bv4294967253 32) ~a12~0) .cse5 .cse3)))) [2021-10-16 02:50:20,978 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-16 02:50:20,978 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-16 02:50:20,978 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-16 02:50:20,978 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-16 02:50:20,978 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-16 02:50:20,979 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-16 02:50:20,979 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-16 02:50:20,979 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-16 02:50:20,979 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,979 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,980 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-16 02:50:20,980 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-16 02:50:20,980 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-16 02:50:20,980 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-16 02:50:20,980 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-16 02:50:20,980 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-16 02:50:20,981 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-16 02:50:20,981 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-16 02:50:20,981 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,981 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,981 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:50:20,982 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-16 02:50:20,982 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-16 02:50:20,982 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-16 02:50:20,982 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-16 02:50:20,984 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-16 02:50:20,985 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-16 02:50:20,985 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,985 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,985 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-16 02:50:20,985 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,986 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-16 02:50:20,987 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse5 (= (_ bv1 32) ~a24~0)) (.cse6 (= (_ bv8 32) ~a15~0)) (.cse2 (= (_ bv6 32) ~a21~0)) (.cse7 (not (= ~a15~0 (_ bv9 32))))) (let ((.cse4 (not (= (_ bv10 32) ~a21~0))) (.cse0 (or (not .cse2) .cse7)) (.cse1 (not (= (_ bv6 32) ~a15~0))) (.cse8 (or (not .cse5) (not .cse6))) (.cse3 (not (bvslt (_ bv11 32) ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (not (bvslt (_ bv80 32) ~a12~0)) .cse5 .cse6) (and .cse4 (or .cse7 (not (bvsle ~a12~0 (_ bv4294967253 32)))) .cse5 .cse8) (and .cse0 .cse1 .cse5 .cse8) (and (not (= ~a21~0 (_ bv9 32))) (or (not (bvsge (_ bv80 32) ~a12~0)) .cse3) (not (= (_ bv7 32) ~a21~0)) .cse5 .cse6) (and (bvslt (_ bv4294967253 32) ~a12~0) .cse5 .cse3)))) [2021-10-16 02:50:20,988 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-16 02:50:20,988 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-16 02:50:20,988 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-16 02:50:20,988 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-16 02:50:20,988 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-16 02:50:20,988 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-16 02:50:20,989 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-16 02:50:20,989 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-16 02:50:20,989 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-16 02:50:20,989 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,989 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,990 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-16 02:50:20,990 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-16 02:50:20,990 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-16 02:50:20,990 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-16 02:50:20,990 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-16 02:50:20,998 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:50:21,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:50:21 BoogieIcfgContainer [2021-10-16 02:50:21,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:50:21,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:50:21,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:50:21,039 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:50:21,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:11" (3/4) ... [2021-10-16 02:50:21,043 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:50:21,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:50:21,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:50:21,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:50:21,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:50:21,285 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:50:21,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:50:21,288 INFO L168 Benchmark]: Toolchain (without parser) took 254709.94 ms. Allocated memory was 65.0 MB in the beginning and 597.7 MB in the end (delta: 532.7 MB). Free memory was 41.7 MB in the beginning and 154.0 MB in the end (delta: -112.3 MB). Peak memory consumption was 421.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:50:21,288 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 65.0 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:50:21,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1048.17 ms. Allocated memory is still 65.0 MB. Free memory was 41.6 MB in the beginning and 36.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:50:21,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.46 ms. Allocated memory is still 65.0 MB. Free memory was 36.1 MB in the beginning and 29.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:50:21,290 INFO L168 Benchmark]: Boogie Preprocessor took 140.23 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 29.5 MB in the beginning and 61.6 MB in the end (delta: -32.1 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:50:21,290 INFO L168 Benchmark]: RCFGBuilder took 3937.59 ms. Allocated memory is still 86.0 MB. Free memory was 61.6 MB in the beginning and 46.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:50:21,291 INFO L168 Benchmark]: TraceAbstraction took 249212.24 ms. Allocated memory was 86.0 MB in the beginning and 597.7 MB in the end (delta: 511.7 MB). Free memory was 45.7 MB in the beginning and 172.8 MB in the end (delta: -127.1 MB). Peak memory consumption was 466.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:50:21,291 INFO L168 Benchmark]: Witness Printer took 247.55 ms. Allocated memory is still 597.7 MB. Free memory was 172.8 MB in the beginning and 154.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:50:21,294 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 65.0 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1048.17 ms. Allocated memory is still 65.0 MB. Free memory was 41.6 MB in the beginning and 36.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.46 ms. Allocated memory is still 65.0 MB. Free memory was 36.1 MB in the beginning and 29.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 140.23 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 29.5 MB in the beginning and 61.6 MB in the end (delta: -32.1 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3937.59 ms. Allocated memory is still 86.0 MB. Free memory was 61.6 MB in the beginning and 46.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 249212.24 ms. Allocated memory was 86.0 MB in the beginning and 597.7 MB in the end (delta: 511.7 MB). Free memory was 45.7 MB in the beginning and 172.8 MB in the end (delta: -127.1 MB). Peak memory consumption was 466.3 MB. Max. memory is 16.1 GB. * Witness Printer took 247.55 ms. Allocated memory is still 597.7 MB. Free memory was 172.8 MB in the beginning and 154.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 110]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 249099.6ms, OverallIterations: 11, TraceHistogramMax: 9, EmptinessCheckTime: 144.9ms, AutomataDifference: 64243.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2166.2ms, InitialAbstractionConstructionTime: 16.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 397 SDtfs, 4021 SDslu, 230 SDs, 0 SdLazy, 17051 SolverSat, 1675 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53737.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19274 GetRequests, 19172 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 5837.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3719occurred in iteration=9, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 908.1ms AutomataMinimizationTime, 11 MinimizatonAttempts, 2155 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 66 NumberOfFragments, 249 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4160 FormulaSimplificationTreeSizeReduction, 556.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6454 FormulaSimplificationTreeSizeReductionInter, 1601.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 554.4ms SsaConstructionTime, 3939.1ms SatisfiabilityAnalysisTime, 121377.5ms InterpolantComputationTime, 9636 NumberOfCodeBlocks, 9636 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 19240 ConstructedInterpolants, 0 QuantifiedInterpolants, 87540 SizeOfPredicates, 46 NumberOfNonLiveVariables, 11004 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 32 InterpolantComputations, 17 PerfectInterpolantSequences, 43099/49918 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 6bv32 == a21) && !~bvslt32(11bv32, a12)) || (((!(10bv32 == a21) && !~bvslt32(80bv32, a12)) && 1bv32 == a24) && 8bv32 == a15)) || (((!(10bv32 == a21) && (!(a15 == 9bv32) || !~bvsle32(a12, 4294967253bv32))) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(a21 == 9bv32) && (!~bvsge32(80bv32, a12) || !~bvslt32(11bv32, a12))) && !(7bv32 == a21)) && 1bv32 == a24) && 8bv32 == a15)) || ((~bvslt32(4294967253bv32, a12) && 1bv32 == a24) && !~bvslt32(11bv32, a12)) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 6bv32 == a21) && !~bvslt32(11bv32, a12)) || (((!(10bv32 == a21) && !~bvslt32(80bv32, a12)) && 1bv32 == a24) && 8bv32 == a15)) || (((!(10bv32 == a21) && (!(a15 == 9bv32) || !~bvsle32(a12, 4294967253bv32))) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(a21 == 9bv32) && (!~bvsge32(80bv32, a12) || !~bvslt32(11bv32, a12))) && !(7bv32 == a21)) && 1bv32 == a24) && 8bv32 == a15)) || ((~bvslt32(4294967253bv32, a12) && 1bv32 == a24) && !~bvslt32(11bv32, a12)) RESULT: Ultimate proved your program to be correct! [2021-10-16 02:50:21,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fc0cb1e-d606-4da3-9aa9-33e88945093b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...