./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V --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 d3602c5801c05a09989d37521ec0a56c80d33e64222732bb3b7051e65443f9ad --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:58:04,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:58:04,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:58:04,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:58:04,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:58:04,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:58:04,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:58:04,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:58:04,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:58:04,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:58:04,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:58:04,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:58:04,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:58:04,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:58:04,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:58:04,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:58:04,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:58:04,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:58:04,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:58:04,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:58:04,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:58:04,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:58:04,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:58:04,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:58:04,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:58:04,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:58:04,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:58:04,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:58:04,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:58:04,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:58:04,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:58:04,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:58:04,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:58:04,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:58:04,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:58:04,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:58:04,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:58:04,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:58:04,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:58:04,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:58:04,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:58:04,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 01:58:04,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:58:04,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:58:04,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:58:04,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:58:04,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:58:04,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:58:04,275 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:58:04,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:58:04,276 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:58:04,276 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:58:04,276 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:58:04,277 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:58:04,277 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:58:04,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:58:04,277 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:58:04,278 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:58:04,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:58:04,278 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:58:04,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:58:04,279 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:58:04,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:58:04,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:58:04,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:58:04,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:58:04,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:58:04,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:58:04,281 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:58:04,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:58:04,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:58:04,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:58:04,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:58:04,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:58:04,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:58:04,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:58:04,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:58:04,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:58:04,283 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:58:04,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:58:04,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:58:04,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:58:04,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:58:04,284 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3602c5801c05a09989d37521ec0a56c80d33e64222732bb3b7051e65443f9ad [2021-11-23 01:58:04,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:58:04,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:58:04,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:58:04,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:58:04,633 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:58:04,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/eca-rers2012/Problem02_label17.c [2021-11-23 01:58:04,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/data/5c22f8820/20975ee3285f4546b99feb994563c6cb/FLAG04acc0fc2 [2021-11-23 01:58:05,592 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:58:05,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/sv-benchmarks/c/eca-rers2012/Problem02_label17.c [2021-11-23 01:58:05,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/data/5c22f8820/20975ee3285f4546b99feb994563c6cb/FLAG04acc0fc2 [2021-11-23 01:58:05,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/data/5c22f8820/20975ee3285f4546b99feb994563c6cb [2021-11-23 01:58:05,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:58:05,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:58:05,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:58:05,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:58:05,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:58:05,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:05" (1/1) ... [2021-11-23 01:58:05,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68435c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:05, skipping insertion in model container [2021-11-23 01:58:05,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:05" (1/1) ... [2021-11-23 01:58:05,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:58:05,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:58:06,399 WARN L230 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_82d49c21-084d-4355-92b0-0c4dd3301207/sv-benchmarks/c/eca-rers2012/Problem02_label17.c[18943,18956] [2021-11-23 01:58:06,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:58:06,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:58:06,609 WARN L230 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_82d49c21-084d-4355-92b0-0c4dd3301207/sv-benchmarks/c/eca-rers2012/Problem02_label17.c[18943,18956] [2021-11-23 01:58:06,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:58:06,641 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:58:06,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06 WrapperNode [2021-11-23 01:58:06,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:58:06,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:58:06,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:58:06,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:58:06,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,766 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-11-23 01:58:06,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:58:06,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:58:06,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:58:06,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:58:06,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:58:06,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:58:06,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:58:06,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:58:06,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (1/1) ... [2021-11-23 01:58:06,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:58:06,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:58:06,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:58:06,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:58:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:58:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:58:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:58:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:58:07,091 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:58:07,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:58:08,311 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:58:08,592 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:58:08,593 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:58:08,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:08 BoogieIcfgContainer [2021-11-23 01:58:08,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:58:08,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:58:08,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:58:08,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:58:08,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:58:05" (1/3) ... [2021-11-23 01:58:08,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3fb980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:08, skipping insertion in model container [2021-11-23 01:58:08,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:06" (2/3) ... [2021-11-23 01:58:08,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3fb980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:08, skipping insertion in model container [2021-11-23 01:58:08,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:08" (3/3) ... [2021-11-23 01:58:08,608 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label17.c [2021-11-23 01:58:08,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:58:08,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:58:08,677 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:58:08,686 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:58:08,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:58:08,720 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) [2021-11-23 01:58:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 01:58:08,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:08,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:08,764 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:08,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1243330038, now seen corresponding path program 1 times [2021-11-23 01:58:08,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:08,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574049761] [2021-11-23 01:58:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:08,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:09,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:09,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574049761] [2021-11-23 01:58:09,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574049761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:09,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:09,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:58:09,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652606682] [2021-11-23 01:58:09,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:09,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:09,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:09,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:09,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:09,377 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) [2021-11-23 01:58:09,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:09,996 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2021-11-23 01:58:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:10,000 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 [2021-11-23 01:58:10,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:10,024 INFO L225 Difference]: With dead ends: 251 [2021-11-23 01:58:10,024 INFO L226 Difference]: Without dead ends: 163 [2021-11-23 01:58:10,029 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:58:10,035 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 6 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 [2021-11-23 01:58:10,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 11 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 01:58:10,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-23 01:58:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-11-23 01:58:10,129 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) [2021-11-23 01:58:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 313 transitions. [2021-11-23 01:58:10,154 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 313 transitions. Word has length 80 [2021-11-23 01:58:10,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:10,156 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 313 transitions. [2021-11-23 01:58:10,156 INFO L471 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) [2021-11-23 01:58:10,156 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 313 transitions. [2021-11-23 01:58:10,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 01:58:10,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:10,162 INFO L514 BasicCegarLoop]: 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] [2021-11-23 01:58:10,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:58:10,163 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1299307606, now seen corresponding path program 1 times [2021-11-23 01:58:10,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:10,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926248534] [2021-11-23 01:58:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:10,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:10,252 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:10,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:10,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926248534] [2021-11-23 01:58:10,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926248534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:10,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:10,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:58:10,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580931120] [2021-11-23 01:58:10,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:10,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:10,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:10,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:10,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:10,261 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) [2021-11-23 01:58:10,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:10,765 INFO L93 Difference]: Finished difference Result 485 states and 936 transitions. [2021-11-23 01:58:10,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:10,767 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 [2021-11-23 01:58:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:10,771 INFO L225 Difference]: With dead ends: 485 [2021-11-23 01:58:10,771 INFO L226 Difference]: Without dead ends: 323 [2021-11-23 01:58:10,773 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:58:10,775 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:10,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 21 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 01:58:10,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-23 01:58:10,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 243. [2021-11-23 01:58:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.871900826446281) internal successors, (453), 242 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:10,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 453 transitions. [2021-11-23 01:58:10,802 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 453 transitions. Word has length 91 [2021-11-23 01:58:10,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:10,802 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 453 transitions. [2021-11-23 01:58:10,803 INFO L471 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) [2021-11-23 01:58:10,803 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 453 transitions. [2021-11-23 01:58:10,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-23 01:58:10,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:10,808 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:10,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:58:10,809 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:10,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:10,811 INFO L85 PathProgramCache]: Analyzing trace with hash 726156309, now seen corresponding path program 1 times [2021-11-23 01:58:10,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:10,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601653475] [2021-11-23 01:58:10,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:10,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:10,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:10,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601653475] [2021-11-23 01:58:10,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601653475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:10,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:10,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:58:10,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187076455] [2021-11-23 01:58:10,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:10,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:10,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:10,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:10,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:10,924 INFO L87 Difference]: Start difference. First operand 243 states and 453 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:11,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:11,361 INFO L93 Difference]: Finished difference Result 725 states and 1356 transitions. [2021-11-23 01:58:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:11,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 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 98 [2021-11-23 01:58:11,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:11,366 INFO L225 Difference]: With dead ends: 725 [2021-11-23 01:58:11,366 INFO L226 Difference]: Without dead ends: 483 [2021-11-23 01:58:11,368 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:58:11,370 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 79 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:11,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 64 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 01:58:11,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-11-23 01:58:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 403. [2021-11-23 01:58:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.7860696517412935) internal successors, (718), 402 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 718 transitions. [2021-11-23 01:58:11,427 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 718 transitions. Word has length 98 [2021-11-23 01:58:11,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:11,428 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 718 transitions. [2021-11-23 01:58:11,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 718 transitions. [2021-11-23 01:58:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 01:58:11,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:11,448 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:11,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:58:11,448 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:11,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:11,450 INFO L85 PathProgramCache]: Analyzing trace with hash 952662047, now seen corresponding path program 1 times [2021-11-23 01:58:11,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:11,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878117619] [2021-11-23 01:58:11,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:11,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:11,580 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:58:11,581 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:11,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878117619] [2021-11-23 01:58:11,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878117619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:11,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:11,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:58:11,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96073494] [2021-11-23 01:58:11,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:11,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:11,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:11,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:11,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:11,602 INFO L87 Difference]: Start difference. First operand 403 states and 718 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:12,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:12,086 INFO L93 Difference]: Finished difference Result 1205 states and 2151 transitions. [2021-11-23 01:58:12,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:12,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 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 102 [2021-11-23 01:58:12,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:12,095 INFO L225 Difference]: With dead ends: 1205 [2021-11-23 01:58:12,095 INFO L226 Difference]: Without dead ends: 803 [2021-11-23 01:58:12,098 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:58:12,101 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 97 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 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 [2021-11-23 01:58:12,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 30 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 01:58:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2021-11-23 01:58:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 723. [2021-11-23 01:58:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.6454293628808865) internal successors, (1188), 722 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1188 transitions. [2021-11-23 01:58:12,148 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1188 transitions. Word has length 102 [2021-11-23 01:58:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:12,148 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 1188 transitions. [2021-11-23 01:58:12,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1188 transitions. [2021-11-23 01:58:12,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 01:58:12,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:12,157 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 01:58:12,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:58:12,158 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:12,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:12,159 INFO L85 PathProgramCache]: Analyzing trace with hash 569996797, now seen corresponding path program 1 times [2021-11-23 01:58:12,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:12,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601681190] [2021-11-23 01:58:12,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:12,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-23 01:58:12,242 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:12,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601681190] [2021-11-23 01:58:12,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601681190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:12,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:12,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:58:12,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485899434] [2021-11-23 01:58:12,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:12,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:12,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:12,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:12,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:12,259 INFO L87 Difference]: Start difference. First operand 723 states and 1188 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:12,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:12,708 INFO L93 Difference]: Finished difference Result 1605 states and 2610 transitions. [2021-11-23 01:58:12,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:12,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 128 [2021-11-23 01:58:12,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:12,715 INFO L225 Difference]: With dead ends: 1605 [2021-11-23 01:58:12,715 INFO L226 Difference]: Without dead ends: 883 [2021-11-23 01:58:12,717 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:58:12,719 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:12,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 70 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 01:58:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-11-23 01:58:12,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2021-11-23 01:58:12,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.5453514739229024) internal successors, (1363), 882 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:12,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1363 transitions. [2021-11-23 01:58:12,771 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1363 transitions. Word has length 128 [2021-11-23 01:58:12,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:12,773 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1363 transitions. [2021-11-23 01:58:12,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:12,774 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1363 transitions. [2021-11-23 01:58:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-23 01:58:12,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:12,784 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 01:58:12,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:58:12,784 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1720253502, now seen corresponding path program 1 times [2021-11-23 01:58:12,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:12,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813637322] [2021-11-23 01:58:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:12,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-23 01:58:12,921 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813637322] [2021-11-23 01:58:12,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813637322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:12,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:12,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:58:12,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598195282] [2021-11-23 01:58:12,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:12,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:12,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:12,925 INFO L87 Difference]: Start difference. First operand 883 states and 1363 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:13,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:13,403 INFO L93 Difference]: Finished difference Result 2245 states and 3460 transitions. [2021-11-23 01:58:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:13,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 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 133 [2021-11-23 01:58:13,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:13,412 INFO L225 Difference]: With dead ends: 2245 [2021-11-23 01:58:13,413 INFO L226 Difference]: Without dead ends: 1363 [2021-11-23 01:58:13,415 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:58:13,416 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 77 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:13,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 139 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 01:58:13,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2021-11-23 01:58:13,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1363. [2021-11-23 01:58:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1362 states have (on average 1.4045521292217327) internal successors, (1913), 1362 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:13,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1913 transitions. [2021-11-23 01:58:13,467 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1913 transitions. Word has length 133 [2021-11-23 01:58:13,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:13,468 INFO L470 AbstractCegarLoop]: Abstraction has 1363 states and 1913 transitions. [2021-11-23 01:58:13,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1913 transitions. [2021-11-23 01:58:13,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-23 01:58:13,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:13,474 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 01:58:13,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 01:58:13,474 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:13,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1360783708, now seen corresponding path program 1 times [2021-11-23 01:58:13,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:13,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583557041] [2021-11-23 01:58:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:13,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 01:58:13,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:13,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583557041] [2021-11-23 01:58:13,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583557041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:13,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:58:13,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:58:13,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142382920] [2021-11-23 01:58:13,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:13,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:58:13,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:13,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:58:13,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:58:13,562 INFO L87 Difference]: Start difference. First operand 1363 states and 1913 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:14,005 INFO L93 Difference]: Finished difference Result 3203 states and 4429 transitions. [2021-11-23 01:58:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:58:14,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 135 [2021-11-23 01:58:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:14,006 INFO L225 Difference]: With dead ends: 3203 [2021-11-23 01:58:14,006 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 01:58:14,010 INFO L932 BasicCegarLoop]: 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 [2021-11-23 01:58:14,012 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 71 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:14,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 29 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 01:58:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 01:58:14,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 01:58:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 01:58:14,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2021-11-23 01:58:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:14,015 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 01:58:14,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:58:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 01:58:14,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:58:14,019 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 01:58:14,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 01:58:14,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 01:58:14,105 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-11-23 01:58:14,108 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-11-23 01:58:14,108 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-11-23 01:58:14,108 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-11-23 01:58:14,108 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-11-23 01:58:14,110 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-11-23 01:58:14,110 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-11-23 01:58:14,110 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-11-23 01:58:14,110 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-11-23 01:58:14,110 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-11-23 01:58:14,111 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-11-23 01:58:14,111 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-11-23 01:58:14,111 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-11-23 01:58:14,111 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-11-23 01:58:14,112 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-11-23 01:58:14,112 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-11-23 01:58:14,112 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-11-23 01:58:14,113 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-11-23 01:58:14,113 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-11-23 01:58:14,113 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-11-23 01:58:14,113 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-11-23 01:58:14,114 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-11-23 01:58:14,114 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-11-23 01:58:14,114 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-11-23 01:58:14,114 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-11-23 01:58:14,114 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-11-23 01:58:14,115 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 01:58:14,116 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-11-23 01:58:14,120 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-11-23 01:58:14,120 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-11-23 01:58:14,120 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-11-23 01:58:14,121 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-11-23 01:58:14,121 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-11-23 01:58:14,121 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-11-23 01:58:14,121 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-11-23 01:58:14,121 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-11-23 01:58:14,122 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 539) no Hoare annotation was computed. [2021-11-23 01:58:14,130 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-11-23 01:58:14,130 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-11-23 01:58:14,130 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-11-23 01:58:14,130 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-11-23 01:58:14,131 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-11-23 01:58:14,131 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-11-23 01:58:14,131 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-11-23 01:58:14,131 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 01:58:14,132 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-11-23 01:58:14,132 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-11-23 01:58:14,132 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-11-23 01:58:14,132 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-11-23 01:58:14,132 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-11-23 01:58:14,132 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 01:58:14,133 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-11-23 01:58:14,133 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-11-23 01:58:14,134 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-11-23 01:58:14,134 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-11-23 01:58:14,134 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-11-23 01:58:14,136 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (or (and (= ~a11~0 0) (= ~a25~0 0)) (<= ~a28~0 10) (= ~a19~0 1)) [2021-11-23 01:58:14,137 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-11-23 01:58:14,137 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-11-23 01:58:14,138 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-11-23 01:58:14,138 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-11-23 01:58:14,138 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-11-23 01:58:14,138 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-11-23 01:58:14,139 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-11-23 01:58:14,139 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-11-23 01:58:14,139 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 01:58:14,140 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-11-23 01:58:14,140 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-11-23 01:58:14,140 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (or (and (= ~a11~0 0) (= ~a25~0 0)) (<= ~a28~0 10) (= ~a19~0 1)) [2021-11-23 01:58:14,140 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-11-23 01:58:14,141 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-11-23 01:58:14,141 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-11-23 01:58:14,141 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-11-23 01:58:14,141 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-11-23 01:58:14,141 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-11-23 01:58:14,142 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-11-23 01:58:14,142 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-11-23 01:58:14,142 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-11-23 01:58:14,142 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-11-23 01:58:14,143 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-11-23 01:58:14,143 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-11-23 01:58:14,144 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-11-23 01:58:14,144 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-11-23 01:58:14,144 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-11-23 01:58:14,144 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-11-23 01:58:14,149 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:58:14,152 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 01:58:14,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:58:14 BoogieIcfgContainer [2021-11-23 01:58:14,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 01:58:14,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:58:14,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:58:14,183 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:58:14,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:08" (3/4) ... [2021-11-23 01:58:14,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:58:14,230 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2021-11-23 01:58:14,232 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-11-23 01:58:14,234 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 01:58:14,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:58:14,449 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 01:58:14,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:58:14,450 INFO L158 Benchmark]: Toolchain (without parser) took 8644.29ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 91.6MB in the beginning and 142.3MB in the end (delta: -50.6MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2021-11-23 01:58:14,450 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:58:14,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 818.03ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 87.3MB in the end (delta: 4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:58:14,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.92ms. Allocated memory is still 125.8MB. Free memory was 87.3MB in the beginning and 81.6MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 01:58:14,451 INFO L158 Benchmark]: Boogie Preprocessor took 117.07ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 78.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:58:14,451 INFO L158 Benchmark]: RCFGBuilder took 1711.93ms. Allocated memory is still 125.8MB. Free memory was 77.4MB in the beginning and 55.8MB in the end (delta: 21.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2021-11-23 01:58:14,451 INFO L158 Benchmark]: TraceAbstraction took 5579.26ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 55.8MB in the beginning and 62.4MB in the end (delta: -6.6MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2021-11-23 01:58:14,452 INFO L158 Benchmark]: Witness Printer took 266.24ms. Allocated memory is still 178.3MB. Free memory was 62.4MB in the beginning and 142.3MB in the end (delta: -79.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:58:14,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 818.03ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 87.3MB in the end (delta: 4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.92ms. Allocated memory is still 125.8MB. Free memory was 87.3MB in the beginning and 81.6MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.07ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 78.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1711.93ms. Allocated memory is still 125.8MB. Free memory was 77.4MB in the beginning and 55.8MB in the end (delta: 21.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5579.26ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 55.8MB in the beginning and 62.4MB in the end (delta: -6.6MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Witness Printer took 266.24ms. Allocated memory is still 178.3MB. Free memory was 62.4MB in the beginning and 142.3MB in the end (delta: -79.9MB). Peak memory consumption was 12.6MB. 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: 539]: 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: 5.5s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 573 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 573 mSDsluCounter, 364 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 430 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1739 IncrementalHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 430 mSolverCounterUnsat, 326 mSDtfsCounter, 1739 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1363occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 240 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 51 NumberOfFragments, 29 HoareAnnotationTreeSize, 3 FomulaSimplifications, 844 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 767 NumberOfCodeBlocks, 767 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 760 ConstructedInterpolants, 0 QuantifiedInterpolants, 1106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 294/294 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: ((a11 == 0 && a25 == 0) || a28 <= 10) || a19 == 1 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((a11 == 0 && a25 == 0) || a28 <= 10) || a19 == 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 01:58:14,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82d49c21-084d-4355-92b0-0c4dd3301207/bin/utaipan-EQgc7hIp5V/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