./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label38.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW --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 a670cdf39cff768f377fda4aa36462d7d9bf374db1f5d06db7ce4e528593b74a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:58:05,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:58:05,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:58:05,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:58:05,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:58:05,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:58:05,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:58:05,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:58:05,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:58:05,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:58:05,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:58:05,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:58:05,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:58:05,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:58:05,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:58:05,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:58:05,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:58:05,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:58:05,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:58:05,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:58:05,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:58:05,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:58:05,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:58:05,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:58:05,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:58:05,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:58:05,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:58:05,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:58:05,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:58:05,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:58:05,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:58:05,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:58:05,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:58:05,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:58:05,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:58:05,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:58:05,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:58:05,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:58:05,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:58:05,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:58:05,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:58:05,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:58:05,241 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:58:05,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:58:05,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:58:05,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:58:05,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:58:05,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:58:05,249 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:58:05,249 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:58:05,250 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:58:05,250 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:58:05,251 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:58:05,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:58:05,251 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:58:05,251 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:58:05,252 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:58:05,252 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:58:05,252 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:58:05,252 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:58:05,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:58:05,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:58:05,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:58:05,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:58:05,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:58:05,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:58:05,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:58:05,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:58:05,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:58:05,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:58:05,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:58:05,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:58:05,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:58:05,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:58:05,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:58:05,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:58:05,256 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:58:05,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:58:05,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:58:05,256 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:58:05,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:58:05,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:58:05,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:58:05,257 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a670cdf39cff768f377fda4aa36462d7d9bf374db1f5d06db7ce4e528593b74a [2022-11-23 14:58:05,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:58:05,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:58:05,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:58:05,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:58:05,551 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:58:05,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/eca-rers2012/Problem02_label38.c [2022-11-23 14:58:08,715 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:58:09,070 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:58:09,070 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/sv-benchmarks/c/eca-rers2012/Problem02_label38.c [2022-11-23 14:58:09,089 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/data/91c0a15f5/4abeb1b66dee4ffd910ff05dd0ff00a5/FLAG2420d4255 [2022-11-23 14:58:09,105 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/data/91c0a15f5/4abeb1b66dee4ffd910ff05dd0ff00a5 [2022-11-23 14:58:09,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:58:09,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:58:09,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:58:09,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:58:09,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:58:09,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746e82c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09, skipping insertion in model container [2022-11-23 14:58:09,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:58:09,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:58:09,551 WARN L237 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_bff2100e-d937-44fb-aeed-429502aa5d36/sv-benchmarks/c/eca-rers2012/Problem02_label38.c[20309,20322] [2022-11-23 14:58:09,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:58:09,625 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:58:09,736 WARN L237 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_bff2100e-d937-44fb-aeed-429502aa5d36/sv-benchmarks/c/eca-rers2012/Problem02_label38.c[20309,20322] [2022-11-23 14:58:09,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:58:09,762 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:58:09,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09 WrapperNode [2022-11-23 14:58:09,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:58:09,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:58:09,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:58:09,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:58:09,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,842 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-11-23 14:58:09,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:58:09,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:58:09,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:58:09,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:58:09,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:58:09,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:58:09,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:58:09,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:58:09,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (1/1) ... [2022-11-23 14:58:09,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:58:09,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:58:09,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:58:09,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:58:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:58:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:58:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:58:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:58:10,148 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:58:10,150 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:58:11,438 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:58:11,743 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:58:11,743 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:58:11,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:11 BoogieIcfgContainer [2022-11-23 14:58:11,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:58:11,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:58:11,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:58:11,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:58:11,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:58:09" (1/3) ... [2022-11-23 14:58:11,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c545d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:11, skipping insertion in model container [2022-11-23 14:58:11,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:09" (2/3) ... [2022-11-23 14:58:11,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c545d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:11, skipping insertion in model container [2022-11-23 14:58:11,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:11" (3/3) ... [2022-11-23 14:58:11,762 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label38.c [2022-11-23 14:58:11,784 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:58:11,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:58:11,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:58:11,866 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@bb3f1e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:58:11,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:58:11,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:11,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-23 14:58:11,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:11,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:11,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:11,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:11,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1814584343, now seen corresponding path program 1 times [2022-11-23 14:58:11,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:11,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8747764] [2022-11-23 14:58:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:11,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:12,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:58:12,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:12,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8747764] [2022-11-23 14:58:12,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8747764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:12,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:12,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:58:12,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803663324] [2022-11-23 14:58:12,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:12,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:12,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:12,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:12,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:12,482 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 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 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:13,028 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2022-11-23 14:58:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:13,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2022-11-23 14:58:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:13,043 INFO L225 Difference]: With dead ends: 251 [2022-11-23 14:58:13,043 INFO L226 Difference]: Without dead ends: 163 [2022-11-23 14:58:13,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:13,050 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:13,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 11 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:58:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-23 14:58:13,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-11-23 14:58:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.9320987654320987) internal successors, (313), 162 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 313 transitions. [2022-11-23 14:58:13,152 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 313 transitions. Word has length 80 [2022-11-23 14:58:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:13,155 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 313 transitions. [2022-11-23 14:58:13,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 313 transitions. [2022-11-23 14:58:13,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-23 14:58:13,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:13,164 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:13,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:58:13,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:13,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:13,166 INFO L85 PathProgramCache]: Analyzing trace with hash -329013527, now seen corresponding path program 1 times [2022-11-23 14:58:13,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:13,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922472844] [2022-11-23 14:58:13,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:13,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:58:13,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:13,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922472844] [2022-11-23 14:58:13,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922472844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:13,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:13,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:58:13,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226601559] [2022-11-23 14:58:13,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:13,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:13,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:13,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:13,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:13,398 INFO L87 Difference]: Start difference. First operand 163 states and 313 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:13,844 INFO L93 Difference]: Finished difference Result 487 states and 937 transitions. [2022-11-23 14:58:13,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:13,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-11-23 14:58:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:13,847 INFO L225 Difference]: With dead ends: 487 [2022-11-23 14:58:13,847 INFO L226 Difference]: Without dead ends: 325 [2022-11-23 14:58:13,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:13,850 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 115 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:13,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 20 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:58:13,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-11-23 14:58:13,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2022-11-23 14:58:13,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.84472049689441) internal successors, (594), 322 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:13,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 594 transitions. [2022-11-23 14:58:13,871 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 594 transitions. Word has length 91 [2022-11-23 14:58:13,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:13,871 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 594 transitions. [2022-11-23 14:58:13,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:13,872 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 594 transitions. [2022-11-23 14:58:13,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-23 14:58:13,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:13,875 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:13,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:58:13,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:13,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:13,877 INFO L85 PathProgramCache]: Analyzing trace with hash -87616428, now seen corresponding path program 1 times [2022-11-23 14:58:13,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:13,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988225989] [2022-11-23 14:58:13,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:13,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:58:14,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:14,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988225989] [2022-11-23 14:58:14,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988225989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:14,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:14,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:58:14,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201053032] [2022-11-23 14:58:14,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:14,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:14,316 INFO L87 Difference]: Start difference. First operand 323 states and 594 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:14,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:14,704 INFO L93 Difference]: Finished difference Result 885 states and 1638 transitions. [2022-11-23 14:58:14,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:14,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 95 [2022-11-23 14:58:14,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:14,708 INFO L225 Difference]: With dead ends: 885 [2022-11-23 14:58:14,708 INFO L226 Difference]: Without dead ends: 563 [2022-11-23 14:58:14,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:14,720 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:14,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 66 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:58:14,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-23 14:58:14,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 483. [2022-11-23 14:58:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.616182572614108) internal successors, (779), 482 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 779 transitions. [2022-11-23 14:58:14,759 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 779 transitions. Word has length 95 [2022-11-23 14:58:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:14,759 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 779 transitions. [2022-11-23 14:58:14,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 779 transitions. [2022-11-23 14:58:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-23 14:58:14,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:14,770 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:14,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:58:14,771 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:14,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1540154833, now seen corresponding path program 1 times [2022-11-23 14:58:14,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:14,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954264668] [2022-11-23 14:58:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:14,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:58:14,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:14,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954264668] [2022-11-23 14:58:14,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954264668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:14,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:14,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:58:14,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758552774] [2022-11-23 14:58:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:14,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:14,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:14,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:14,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:14,975 INFO L87 Difference]: Start difference. First operand 483 states and 779 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:15,405 INFO L93 Difference]: Finished difference Result 1205 states and 2008 transitions. [2022-11-23 14:58:15,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:15,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 100 [2022-11-23 14:58:15,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:15,410 INFO L225 Difference]: With dead ends: 1205 [2022-11-23 14:58:15,410 INFO L226 Difference]: Without dead ends: 723 [2022-11-23 14:58:15,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:15,421 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 78 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:15,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 138 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:58:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-11-23 14:58:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2022-11-23 14:58:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.4750692520775623) internal successors, (1065), 722 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1065 transitions. [2022-11-23 14:58:15,447 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1065 transitions. Word has length 100 [2022-11-23 14:58:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:15,449 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 1065 transitions. [2022-11-23 14:58:15,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1065 transitions. [2022-11-23 14:58:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-23 14:58:15,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:15,454 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:15,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:58:15,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:15,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:15,456 INFO L85 PathProgramCache]: Analyzing trace with hash -163969627, now seen corresponding path program 1 times [2022-11-23 14:58:15,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:15,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535167504] [2022-11-23 14:58:15,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:15,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:58:15,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:15,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535167504] [2022-11-23 14:58:15,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535167504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:15,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:15,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:58:15,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210961764] [2022-11-23 14:58:15,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:15,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:15,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:15,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:15,578 INFO L87 Difference]: Start difference. First operand 723 states and 1065 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:16,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:16,018 INFO L93 Difference]: Finished difference Result 1925 states and 2912 transitions. [2022-11-23 14:58:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:16,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-11-23 14:58:16,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:16,023 INFO L225 Difference]: With dead ends: 1925 [2022-11-23 14:58:16,024 INFO L226 Difference]: Without dead ends: 1203 [2022-11-23 14:58:16,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:16,025 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:16,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 30 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:58:16,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-11-23 14:58:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 963. [2022-11-23 14:58:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.4397089397089398) internal successors, (1385), 962 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1385 transitions. [2022-11-23 14:58:16,049 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1385 transitions. Word has length 101 [2022-11-23 14:58:16,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:16,050 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1385 transitions. [2022-11-23 14:58:16,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:16,050 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1385 transitions. [2022-11-23 14:58:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-23 14:58:16,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:16,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:58:16,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:58:16,053 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:58:16,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:16,054 INFO L85 PathProgramCache]: Analyzing trace with hash -985381725, now seen corresponding path program 1 times [2022-11-23 14:58:16,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:16,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421352822] [2022-11-23 14:58:16,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:16,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:58:16,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:16,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421352822] [2022-11-23 14:58:16,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421352822] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:58:16,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750853754] [2022-11-23 14:58:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:16,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:58:16,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:58:16,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:58:16,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:58:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:16,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:58:16,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:58:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 14:58:16,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:58:16,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750853754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:16,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:58:16,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-23 14:58:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591195999] [2022-11-23 14:58:16,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:16,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:16,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:16,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:16,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:58:16,868 INFO L87 Difference]: Start difference. First operand 963 states and 1385 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:17,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:17,277 INFO L93 Difference]: Finished difference Result 2243 states and 3193 transitions. [2022-11-23 14:58:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:17,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 107 [2022-11-23 14:58:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:17,278 INFO L225 Difference]: With dead ends: 2243 [2022-11-23 14:58:17,278 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:58:17,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:58:17,281 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:17,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:58:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:58:17,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:58:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:58:17,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2022-11-23 14:58:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:17,283 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:58:17,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:58:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:58:17,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:58:17,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:58:17,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:58:17,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 14:58:17,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:58:17,546 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-11-23 14:58:17,548 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-11-23 14:58:17,548 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-11-23 14:58:17,548 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-11-23 14:58:17,549 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-11-23 14:58:17,549 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-11-23 14:58:17,549 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-11-23 14:58:17,549 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2022-11-23 14:58:17,549 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-11-23 14:58:17,549 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-11-23 14:58:17,550 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-11-23 14:58:17,550 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-11-23 14:58:17,550 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-11-23 14:58:17,550 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2022-11-23 14:58:17,550 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-11-23 14:58:17,550 INFO L899 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2022-11-23 14:58:17,551 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-11-23 14:58:17,551 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-11-23 14:58:17,551 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-11-23 14:58:17,552 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-11-23 14:58:17,552 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-11-23 14:58:17,552 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-11-23 14:58:17,552 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-11-23 14:58:17,552 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-11-23 14:58:17,552 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-11-23 14:58:17,553 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-11-23 14:58:17,553 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-11-23 14:58:17,553 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-11-23 14:58:17,553 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-11-23 14:58:17,553 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:58:17,553 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-11-23 14:58:17,554 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-11-23 14:58:17,554 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-11-23 14:58:17,554 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-11-23 14:58:17,554 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-11-23 14:58:17,554 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-11-23 14:58:17,555 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-11-23 14:58:17,555 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-11-23 14:58:17,555 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-11-23 14:58:17,555 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 575) no Hoare annotation was computed. [2022-11-23 14:58:17,555 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-11-23 14:58:17,555 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-11-23 14:58:17,556 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-11-23 14:58:17,556 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-11-23 14:58:17,556 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-11-23 14:58:17,556 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-11-23 14:58:17,557 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-11-23 14:58:17,557 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-11-23 14:58:17,557 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-11-23 14:58:17,557 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-11-23 14:58:17,557 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-11-23 14:58:17,558 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-11-23 14:58:17,558 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-11-23 14:58:17,558 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-11-23 14:58:17,558 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-11-23 14:58:17,559 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-11-23 14:58:17,561 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (or (and (<= 8 ~a17~0) (= ~a11~0 0) (not (= ~a25~0 1))) (<= ~a28~0 10) (= ~a19~0 1)) [2022-11-23 14:58:17,562 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-11-23 14:58:17,564 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-11-23 14:58:17,565 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-11-23 14:58:17,565 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-11-23 14:58:17,565 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-11-23 14:58:17,565 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-11-23 14:58:17,566 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-11-23 14:58:17,567 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-11-23 14:58:17,567 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:58:17,568 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-11-23 14:58:17,573 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-11-23 14:58:17,574 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (or (and (<= 8 ~a17~0) (= ~a11~0 0) (not (= ~a25~0 1))) (<= ~a28~0 10) (= ~a19~0 1)) [2022-11-23 14:58:17,575 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-11-23 14:58:17,575 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-11-23 14:58:17,575 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-11-23 14:58:17,575 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-11-23 14:58:17,576 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-11-23 14:58:17,576 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-11-23 14:58:17,576 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-11-23 14:58:17,576 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-11-23 14:58:17,576 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-11-23 14:58:17,576 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-11-23 14:58:17,577 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-11-23 14:58:17,577 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-11-23 14:58:17,577 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-11-23 14:58:17,577 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-11-23 14:58:17,577 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-11-23 14:58:17,577 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-11-23 14:58:17,581 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-23 14:58:17,583 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:58:17,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:58:17 BoogieIcfgContainer [2022-11-23 14:58:17,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:58:17,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:58:17,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:58:17,608 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:58:17,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:11" (3/4) ... [2022-11-23 14:58:17,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:58:17,640 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 115 nodes and edges [2022-11-23 14:58:17,642 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-23 14:58:17,643 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 14:58:17,644 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:58:17,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:58:17,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:58:17,771 INFO L158 Benchmark]: Toolchain (without parser) took 8662.20ms. Allocated memory was 146.8MB in the beginning and 255.9MB in the end (delta: 109.1MB). Free memory was 99.9MB in the beginning and 87.8MB in the end (delta: 12.1MB). Peak memory consumption was 121.7MB. Max. memory is 16.1GB. [2022-11-23 14:58:17,772 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:58:17,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.54ms. Allocated memory is still 146.8MB. Free memory was 99.9MB in the beginning and 73.5MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 14:58:17,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.41ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 67.9MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 14:58:17,773 INFO L158 Benchmark]: Boogie Preprocessor took 60.00ms. Allocated memory is still 146.8MB. Free memory was 67.9MB in the beginning and 63.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:58:17,774 INFO L158 Benchmark]: RCFGBuilder took 1843.48ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 63.7MB in the beginning and 148.5MB in the end (delta: -84.8MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2022-11-23 14:58:17,775 INFO L158 Benchmark]: TraceAbstraction took 5854.65ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 147.4MB in the beginning and 98.2MB in the end (delta: 49.2MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. [2022-11-23 14:58:17,775 INFO L158 Benchmark]: Witness Printer took 163.63ms. Allocated memory is still 255.9MB. Free memory was 98.2MB in the beginning and 87.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:58:17,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 146.8MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.54ms. Allocated memory is still 146.8MB. Free memory was 99.9MB in the beginning and 73.5MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.41ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 67.9MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.00ms. Allocated memory is still 146.8MB. Free memory was 67.9MB in the beginning and 63.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1843.48ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 63.7MB in the beginning and 148.5MB in the end (delta: -84.8MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5854.65ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 147.4MB in the beginning and 98.2MB in the end (delta: 49.2MB). Peak memory consumption was 92.2MB. Max. memory is 16.1GB. * Witness Printer took 163.63ms. Allocated memory is still 255.9MB. Free memory was 98.2MB in the beginning and 87.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 575]: 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, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 454 mSDsluCounter, 294 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 412 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1490 IncrementalHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 412 mSolverCounterUnsat, 271 mSDtfsCounter, 1490 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred in iteration=5, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 322 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 37 HoareAnnotationTreeSize, 3 FomulaSimplifications, 470 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 681 NumberOfCodeBlocks, 681 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 674 ConstructedInterpolants, 0 QuantifiedInterpolants, 2716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 138/154 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((8 <= a17 && a11 == 0) && !(a25 == 1)) || a28 <= 10) || a19 == 1 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((8 <= a17 && a11 == 0) && !(a25 == 1)) || a28 <= 10) || a19 == 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:58:17,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff2100e-d937-44fb-aeed-429502aa5d36/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE