./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8 --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 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:51:51,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:51:51,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:51:51,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:51:51,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:51:51,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:51:51,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:51:51,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:51:51,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:51:51,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:51:51,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:51:51,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:51:51,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:51:51,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:51:51,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:51:51,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:51:51,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:51:51,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:51:51,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:51:51,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:51:51,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:51:51,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:51:51,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:51:51,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:51:51,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:51:51,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:51:51,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:51:51,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:51:51,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:51:51,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:51:51,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:51:51,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:51:51,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:51:51,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:51:51,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:51:51,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:51:51,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:51:51,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:51:51,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:51:51,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:51:51,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:51:51,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:51:51,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:51:51,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:51:51,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:51:51,268 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:51:51,268 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:51:51,268 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:51:51,268 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:51:51,268 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:51:51,269 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:51:51,269 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:51:51,276 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:51:51,276 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:51:51,276 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:51:51,277 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:51:51,277 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:51:51,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:51:51,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:51:51,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:51:51,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:51:51,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:51:51,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:51:51,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:51:51,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:51:51,279 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:51:51,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:51:51,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:51:51,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:51:51,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:51:51,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:51:51,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:51:51,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:51,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:51:51,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:51:51,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:51:51,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:51:51,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:51:51,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:51:51,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:51:51,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:51:51,285 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_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b [2021-11-07 01:51:51,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:51:51,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:51:51,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:51:51,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:51:51,583 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:51:51,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-11-07 01:51:51,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/90323ac72/b2db63e54bf44e76b2c7cd020d426e2a/FLAG9a7a66ab7 [2021-11-07 01:51:52,254 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:51:52,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-11-07 01:51:52,266 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/90323ac72/b2db63e54bf44e76b2c7cd020d426e2a/FLAG9a7a66ab7 [2021-11-07 01:51:52,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/90323ac72/b2db63e54bf44e76b2c7cd020d426e2a [2021-11-07 01:51:52,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:51:52,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:51:52,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:52,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:51:52,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:51:52,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:52" (1/1) ... [2021-11-07 01:51:52,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63db60ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:52, skipping insertion in model container [2021-11-07 01:51:52,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:52" (1/1) ... [2021-11-07 01:51:52,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:51:52,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:52,806 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2021-11-07 01:51:52,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:52,830 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:51:52,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29976d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:52, skipping insertion in model container [2021-11-07 01:51:52,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:52,831 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:51:52,834 INFO L168 Benchmark]: Toolchain (without parser) took 320.95 ms. Allocated memory is still 142.6 MB. Free memory was 117.6 MB in the beginning and 117.9 MB in the end (delta: -338.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:52,835 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 142.6 MB. Free memory is still 96.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:51:52,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.82 ms. Allocated memory is still 142.6 MB. Free memory was 117.5 MB in the beginning and 117.9 MB in the end (delta: -470.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:51:52,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 142.6 MB. Free memory is still 96.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.82 ms. Allocated memory is still 142.6 MB. Free memory was 117.5 MB in the beginning and 117.9 MB in the end (delta: -470.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 159]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8 --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 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:51:55,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:51:55,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:51:55,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:51:55,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:51:55,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:51:55,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:51:55,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:51:55,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:51:55,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:51:55,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:51:55,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:51:55,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:51:55,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:51:55,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:51:55,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:51:55,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:51:55,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:51:55,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:51:55,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:51:55,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:51:55,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:51:55,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:51:55,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:51:55,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:51:55,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:51:55,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:51:55,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:51:55,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:51:55,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:51:55,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:51:55,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:51:55,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:51:55,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:51:55,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:51:55,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:51:55,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:51:55,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:51:55,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:51:55,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:51:55,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:51:55,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:51:55,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:51:55,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:51:55,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:51:55,352 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:51:55,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:51:55,353 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:51:55,353 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:51:55,353 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:51:55,354 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:51:55,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:51:55,355 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:51:55,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:51:55,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:51:55,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:51:55,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:51:55,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:51:55,357 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:51:55,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:51:55,357 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:51:55,357 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:51:55,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:51:55,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:51:55,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:51:55,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:51:55,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:51:55,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:51:55,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:55,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:51:55,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:51:55,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:51:55,360 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:51:55,360 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:51:55,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:51:55,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:51:55,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:51:55,361 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 841ea5a5ca051cc33dfe29d877ccdea4b63526a0ee61a2de18869a9ba1858c4b [2021-11-07 01:51:55,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:51:55,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:51:55,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:51:55,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:51:55,779 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:51:55,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-11-07 01:51:55,854 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/bb92903d6/417c7fd81b204678a74cfb447c053fe7/FLAG2b0ae16f3 [2021-11-07 01:51:56,397 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:51:56,398 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-11-07 01:51:56,405 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/bb92903d6/417c7fd81b204678a74cfb447c053fe7/FLAG2b0ae16f3 [2021-11-07 01:51:56,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/data/bb92903d6/417c7fd81b204678a74cfb447c053fe7 [2021-11-07 01:51:56,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:51:56,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:51:56,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:56,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:51:56,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:51:56,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:56" (1/1) ... [2021-11-07 01:51:56,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88d8aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:56, skipping insertion in model container [2021-11-07 01:51:56,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:56" (1/1) ... [2021-11-07 01:51:56,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:51:56,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:57,080 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2021-11-07 01:51:57,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:57,126 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:51:57,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:51:57,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2021-11-07 01:51:57,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:57,204 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:51:57,239 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[4007,4020] [2021-11-07 01:51:57,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:51:57,260 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:51:57,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57 WrapperNode [2021-11-07 01:51:57,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:51:57,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:57,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:51:57,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:51:57,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:51:57,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:51:57,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:51:57,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:51:57,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:51:57,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:51:57,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:51:57,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:51:57,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (1/1) ... [2021-11-07 01:51:57,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:51:57,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:51:57,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:51:57,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:51:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:51:57,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:51:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:51:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 01:51:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 01:51:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 01:51:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 01:51:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 01:51:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 01:51:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-07 01:51:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-07 01:51:57,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 01:51:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 01:51:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:51:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:51:57,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:51:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:51:57,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:51:57,485 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:51:58,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:51:58,702 INFO L299 CfgBuilder]: Removed 39 assume(true) statements. [2021-11-07 01:51:58,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:58 BoogieIcfgContainer [2021-11-07 01:51:58,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:51:58,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:51:58,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:51:58,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:51:58,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:51:56" (1/3) ... [2021-11-07 01:51:58,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f82153f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:58, skipping insertion in model container [2021-11-07 01:51:58,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:57" (2/3) ... [2021-11-07 01:51:58,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f82153f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:58, skipping insertion in model container [2021-11-07 01:51:58,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:58" (3/3) ... [2021-11-07 01:51:58,720 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2021-11-07 01:51:58,726 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:51:58,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:51:58,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:51:58,726 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:51:58,782 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,782 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,782 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,783 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,783 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,784 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,785 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,785 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,786 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,786 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,787 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,787 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,787 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,788 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,789 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,789 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,790 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,791 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,791 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,791 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,791 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,792 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,792 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,793 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,794 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,796 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,797 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,799 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,799 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,800 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,800 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,801 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,801 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,802 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,802 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,802 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,802 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,803 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,804 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,805 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,805 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,808 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,809 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,809 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,810 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,810 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,811 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,811 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,818 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,818 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,818 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,819 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,819 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,819 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,819 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,819 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,820 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,820 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,821 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,822 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,822 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,822 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,822 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,835 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,836 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,837 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,845 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,846 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,848 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,848 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,848 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,848 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,849 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,849 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,851 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,852 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,852 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,852 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,852 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,852 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,853 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:51:58,888 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-07 01:51:58,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:51:58,952 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 [2021-11-07 01:51:58,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 01:51:58,975 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:51:58,986 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 210 transitions, 452 flow [2021-11-07 01:51:58,990 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 210 transitions, 452 flow [2021-11-07 01:51:58,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 205 places, 210 transitions, 452 flow [2021-11-07 01:51:59,151 INFO L129 PetriNetUnfolder]: 18/206 cut-off events. [2021-11-07 01:51:59,152 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 01:51:59,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 206 events. 18/206 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 121 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 175. Up to 3 conditions per place. [2021-11-07 01:51:59,164 INFO L116 LiptonReduction]: Number of co-enabled transitions 2284 [2021-11-07 01:52:26,355 INFO L131 LiptonReduction]: Checked pairs total: 4463 [2021-11-07 01:52:26,355 INFO L133 LiptonReduction]: Total number of compositions: 211 [2021-11-07 01:52:26,373 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 41 transitions, 114 flow [2021-11-07 01:52:26,454 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 778 states, 777 states have (on average 3.7966537966537968) internal successors, (2950), 777 states have internal predecessors, (2950), 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) [2021-11-07 01:52:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 778 states, 777 states have (on average 3.7966537966537968) internal successors, (2950), 777 states have internal predecessors, (2950), 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) [2021-11-07 01:52:26,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:52:26,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:26,494 INFO L513 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] [2021-11-07 01:52:26,495 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:26,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:26,502 INFO L85 PathProgramCache]: Analyzing trace with hash 445213444, now seen corresponding path program 1 times [2021-11-07 01:52:26,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:26,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771965097] [2021-11-07 01:52:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:26,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:26,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:26,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:26,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:52:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:26,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:52:26,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:26,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:26,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:26,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771965097] [2021-11-07 01:52:26,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771965097] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:26,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:26,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:52:26,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264771718] [2021-11-07 01:52:26,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:52:26,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:26,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:52:27,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:52:27,005 INFO L87 Difference]: Start difference. First operand has 778 states, 777 states have (on average 3.7966537966537968) internal successors, (2950), 777 states have internal predecessors, (2950), 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 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:27,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:27,197 INFO L93 Difference]: Finished difference Result 818 states and 3022 transitions. [2021-11-07 01:52:27,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:52:27,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-07 01:52:27,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:27,239 INFO L225 Difference]: With dead ends: 818 [2021-11-07 01:52:27,239 INFO L226 Difference]: Without dead ends: 818 [2021-11-07 01:52:27,240 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:52:27,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2021-11-07 01:52:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 718. [2021-11-07 01:52:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 3.7405857740585775) internal successors, (2682), 717 states have internal predecessors, (2682), 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) [2021-11-07 01:52:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 2682 transitions. [2021-11-07 01:52:27,368 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 2682 transitions. Word has length 26 [2021-11-07 01:52:27,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:27,369 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 2682 transitions. [2021-11-07 01:52:27,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:52:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 2682 transitions. [2021-11-07 01:52:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:52:27,374 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:27,374 INFO L513 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] [2021-11-07 01:52:27,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:27,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:27,589 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1677675750, now seen corresponding path program 2 times [2021-11-07 01:52:27,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:27,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351315597] [2021-11-07 01:52:27,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:52:27,591 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:27,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:27,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:27,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:52:27,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 01:52:27,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:52:27,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:52:27,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:28,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:28,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:28,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351315597] [2021-11-07 01:52:28,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351315597] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:28,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:28,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-07 01:52:28,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809613532] [2021-11-07 01:52:28,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:52:28,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:28,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:52:28,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:52:28,295 INFO L87 Difference]: Start difference. First operand 718 states and 2682 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 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) [2021-11-07 01:52:28,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:28,607 INFO L93 Difference]: Finished difference Result 1352 states and 5018 transitions. [2021-11-07 01:52:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:52:28,608 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 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 26 [2021-11-07 01:52:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:28,618 INFO L225 Difference]: With dead ends: 1352 [2021-11-07 01:52:28,618 INFO L226 Difference]: Without dead ends: 880 [2021-11-07 01:52:28,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:52:28,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2021-11-07 01:52:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 800. [2021-11-07 01:52:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 3.707133917396746) internal successors, (2962), 799 states have internal predecessors, (2962), 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) [2021-11-07 01:52:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 2962 transitions. [2021-11-07 01:52:28,661 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 2962 transitions. Word has length 26 [2021-11-07 01:52:28,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:28,661 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 2962 transitions. [2021-11-07 01:52:28,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 9 states have internal predecessors, (41), 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) [2021-11-07 01:52:28,662 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 2962 transitions. [2021-11-07 01:52:28,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 01:52:28,666 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:28,666 INFO L513 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] [2021-11-07 01:52:28,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:28,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:28,878 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash -177532340, now seen corresponding path program 1 times [2021-11-07 01:52:28,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:28,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054549279] [2021-11-07 01:52:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:28,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:28,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:28,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:28,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:52:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:29,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:52:29,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:29,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:52:29,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:29,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054549279] [2021-11-07 01:52:29,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054549279] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:29,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:29,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:52:29,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708337920] [2021-11-07 01:52:29,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:52:29,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:29,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:52:29,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:52:29,311 INFO L87 Difference]: Start difference. First operand 800 states and 2962 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-07 01:52:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:29,347 INFO L93 Difference]: Finished difference Result 758 states and 2714 transitions. [2021-11-07 01:52:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:52:29,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 29 [2021-11-07 01:52:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:29,357 INFO L225 Difference]: With dead ends: 758 [2021-11-07 01:52:29,358 INFO L226 Difference]: Without dead ends: 758 [2021-11-07 01:52:29,358 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:52:29,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-07 01:52:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2021-11-07 01:52:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 757 states have (on average 3.5852047556142668) internal successors, (2714), 757 states have internal predecessors, (2714), 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) [2021-11-07 01:52:29,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 2714 transitions. [2021-11-07 01:52:29,416 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 2714 transitions. Word has length 29 [2021-11-07 01:52:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:29,417 INFO L470 AbstractCegarLoop]: Abstraction has 758 states and 2714 transitions. [2021-11-07 01:52:29,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-07 01:52:29,417 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 2714 transitions. [2021-11-07 01:52:29,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:52:29,421 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:29,422 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:52:29,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:29,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:29,635 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:29,636 INFO L85 PathProgramCache]: Analyzing trace with hash 432287510, now seen corresponding path program 1 times [2021-11-07 01:52:29,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:29,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940880287] [2021-11-07 01:52:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:29,638 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:29,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:29,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:29,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:52:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:29,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:52:29,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:29,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:30,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:30,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940880287] [2021-11-07 01:52:30,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940880287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:30,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:30,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:52:30,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205551099] [2021-11-07 01:52:30,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:52:30,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:30,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:52:30,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:52:30,113 INFO L87 Difference]: Start difference. First operand 758 states and 2714 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-07 01:52:30,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:30,155 INFO L93 Difference]: Finished difference Result 692 states and 2365 transitions. [2021-11-07 01:52:30,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:52:30,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 01:52:30,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:30,166 INFO L225 Difference]: With dead ends: 692 [2021-11-07 01:52:30,167 INFO L226 Difference]: Without dead ends: 662 [2021-11-07 01:52:30,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:52:30,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-07 01:52:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2021-11-07 01:52:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 3.465960665658094) internal successors, (2291), 661 states have internal predecessors, (2291), 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) [2021-11-07 01:52:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 2291 transitions. [2021-11-07 01:52:30,199 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 2291 transitions. Word has length 32 [2021-11-07 01:52:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:30,200 INFO L470 AbstractCegarLoop]: Abstraction has 662 states and 2291 transitions. [2021-11-07 01:52:30,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-07 01:52:30,200 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 2291 transitions. [2021-11-07 01:52:30,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:52:30,209 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:30,209 INFO L513 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] [2021-11-07 01:52:30,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:30,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:30,422 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:30,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:30,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1358315192, now seen corresponding path program 1 times [2021-11-07 01:52:30,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:30,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661714650] [2021-11-07 01:52:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:30,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:30,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:30,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:30,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:52:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:30,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:52:30,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:30,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:30,940 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:30,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661714650] [2021-11-07 01:52:30,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661714650] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:52:30,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1062677703] [2021-11-07 01:52:30,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:30,942 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:52:30,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:52:30,945 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:52:30,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 01:52:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:31,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:52:31,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:31,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:31,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1062677703] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:52:31,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700140223] [2021-11-07 01:52:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:31,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:52:31,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:52:31,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:52:31,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:52:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:31,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:52:31,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:31,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:31,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:52:31,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700140223] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:52:31,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:52:31,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3, 3, 3, 3] total 5 [2021-11-07 01:52:31,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013536242] [2021-11-07 01:52:31,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:52:31,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:52:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:52:31,918 INFO L87 Difference]: Start difference. First operand 662 states and 2291 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 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) [2021-11-07 01:52:32,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:32,016 INFO L93 Difference]: Finished difference Result 746 states and 2531 transitions. [2021-11-07 01:52:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:52:32,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 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 34 [2021-11-07 01:52:32,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:32,024 INFO L225 Difference]: With dead ends: 746 [2021-11-07 01:52:32,025 INFO L226 Difference]: Without dead ends: 746 [2021-11-07 01:52:32,025 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:52:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-11-07 01:52:32,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 662. [2021-11-07 01:52:32,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 3.4084720121028744) internal successors, (2253), 661 states have internal predecessors, (2253), 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) [2021-11-07 01:52:32,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 2253 transitions. [2021-11-07 01:52:32,056 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 2253 transitions. Word has length 34 [2021-11-07 01:52:32,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:32,058 INFO L470 AbstractCegarLoop]: Abstraction has 662 states and 2253 transitions. [2021-11-07 01:52:32,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 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) [2021-11-07 01:52:32,058 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 2253 transitions. [2021-11-07 01:52:32,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 01:52:32,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:32,062 INFO L513 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] [2021-11-07 01:52:32,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:32,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:32,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-07 01:52:32,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:52:32,678 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:32,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1843953112, now seen corresponding path program 2 times [2021-11-07 01:52:32,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:32,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458245603] [2021-11-07 01:52:32,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 01:52:32,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:32,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:32,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:32,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:52:33,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 01:52:33,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:52:33,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:52:33,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:52:33,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:52:33,380 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:33,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458245603] [2021-11-07 01:52:33,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458245603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:33,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:33,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 01:52:33,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826037505] [2021-11-07 01:52:33,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:52:33,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:33,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:52:33,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:52:33,389 INFO L87 Difference]: Start difference. First operand 662 states and 2253 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 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) [2021-11-07 01:52:33,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:33,515 INFO L93 Difference]: Finished difference Result 731 states and 2410 transitions. [2021-11-07 01:52:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:52:33,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 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 34 [2021-11-07 01:52:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:33,525 INFO L225 Difference]: With dead ends: 731 [2021-11-07 01:52:33,526 INFO L226 Difference]: Without dead ends: 663 [2021-11-07 01:52:33,526 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:52:33,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2021-11-07 01:52:33,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2021-11-07 01:52:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 3.404833836858006) internal successors, (2254), 662 states have internal predecessors, (2254), 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) [2021-11-07 01:52:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 2254 transitions. [2021-11-07 01:52:33,559 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 2254 transitions. Word has length 34 [2021-11-07 01:52:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:33,559 INFO L470 AbstractCegarLoop]: Abstraction has 663 states and 2254 transitions. [2021-11-07 01:52:33,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 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) [2021-11-07 01:52:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 2254 transitions. [2021-11-07 01:52:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 01:52:33,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:33,564 INFO L513 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] [2021-11-07 01:52:33,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 01:52:33,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:33,770 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:33,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1635391482, now seen corresponding path program 1 times [2021-11-07 01:52:33,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:33,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766244559] [2021-11-07 01:52:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:33,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:33,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:33,773 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:33,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:52:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:34,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:52:34,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:52:34,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:52:34,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:52:34,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:52:34,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766244559] [2021-11-07 01:52:34,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766244559] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:52:34,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:52:34,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:52:34,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582399667] [2021-11-07 01:52:34,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:52:34,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:52:34,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:52:34,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:52:34,575 INFO L87 Difference]: Start difference. First operand 663 states and 2254 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-11-07 01:52:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:52:34,754 INFO L93 Difference]: Finished difference Result 839 states and 2727 transitions. [2021-11-07 01:52:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:52:34,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 35 [2021-11-07 01:52:34,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:52:34,764 INFO L225 Difference]: With dead ends: 839 [2021-11-07 01:52:34,764 INFO L226 Difference]: Without dead ends: 664 [2021-11-07 01:52:34,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:52:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2021-11-07 01:52:34,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2021-11-07 01:52:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 663 states have (on average 3.401206636500754) internal successors, (2255), 663 states have internal predecessors, (2255), 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) [2021-11-07 01:52:34,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 2255 transitions. [2021-11-07 01:52:34,797 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 2255 transitions. Word has length 35 [2021-11-07 01:52:34,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:52:34,797 INFO L470 AbstractCegarLoop]: Abstraction has 664 states and 2255 transitions. [2021-11-07 01:52:34,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-11-07 01:52:34,798 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 2255 transitions. [2021-11-07 01:52:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 01:52:34,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:52:34,801 INFO L513 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] [2021-11-07 01:52:34,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:52:35,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:52:35,017 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 01:52:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:52:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1524681446, now seen corresponding path program 1 times [2021-11-07 01:52:35,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:52:35,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3182839] [2021-11-07 01:52:35,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:52:35,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:52:35,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:52:35,020 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:52:35,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:52:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:52:35,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-07 01:52:35,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:52:36,334 INFO L354 Elim1Store]: treesize reduction 163, result has 15.1 percent of original size [2021-11-07 01:52:36,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 39 [2021-11-07 01:52:47,643 INFO L354 Elim1Store]: treesize reduction 1262, result has 5.7 percent of original size [2021-11-07 01:52:47,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 90 treesize of output 110 [2021-11-07 01:55:43,694 WARN L207 SmtUtils]: Spent 2.84 m on a formula simplification. DAG size of input: 638 DAG size of output: 148 [2021-11-07 01:55:43,697 INFO L354 Elim1Store]: treesize reduction 3792, result has 11.2 percent of original size [2021-11-07 01:55:43,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 81 case distinctions, treesize of input 215 treesize of output 547 [2021-11-07 02:02:18,576 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-07 02:02:18,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:18,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3182839] [2021-11-07 02:02:18,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-07 02:02:18,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [868535528] [2021-11-07 02:02:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:18,579 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:02:18,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:02:18,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-11-07 02:02:18,586 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:02:18,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 02:02:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:19,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-07 02:02:19,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:19,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-07 02:02:19,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937599780] [2021-11-07 02:02:19,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:19,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:19,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:19,985 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:02:19,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 02:02:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:20,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-07 02:02:20,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:20,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-07 02:02:20,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:20,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 02:02:20,530 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 02:02:20,530 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 02:02:20,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:02:20,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 02:02:20,539 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 02:02:20,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-07 02:02:20,540 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-11-07 02:02:20,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:20,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:20,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:21,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e2ed739-e677-4c54-bcea-b69b88609d5c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:02:21,148 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2021-11-07 02:02:21,151 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 02:02:21,152 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:02:21,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:02:21 BasicIcfg [2021-11-07 02:02:21,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:02:21,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:02:21,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:02:21,184 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:02:21,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:58" (3/4) ... [2021-11-07 02:02:21,188 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:02:21,188 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:02:21,189 INFO L168 Benchmark]: Toolchain (without parser) took 624423.82 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 36.0 MB in the beginning and 62.4 MB in the end (delta: -26.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:21,189 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 58.7 MB. Free memory is still 39.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:02:21,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.22 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 36.7 MB in the end (delta: -926.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:21,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.06 ms. Allocated memory is still 58.7 MB. Free memory was 36.7 MB in the beginning and 34.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:21,191 INFO L168 Benchmark]: Boogie Preprocessor took 42.13 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 32.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:21,191 INFO L168 Benchmark]: RCFGBuilder took 1336.58 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 32.3 MB in the beginning and 46.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:21,192 INFO L168 Benchmark]: TraceAbstraction took 622476.06 ms. Allocated memory was 73.4 MB in the beginning and 111.1 MB in the end (delta: 37.7 MB). Free memory was 46.2 MB in the beginning and 62.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:21,192 INFO L168 Benchmark]: Witness Printer took 4.62 ms. Allocated memory is still 111.1 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:02:21,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 58.7 MB. Free memory is still 39.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 494.22 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 36.7 MB in the end (delta: -926.6 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.06 ms. Allocated memory is still 58.7 MB. Free memory was 36.7 MB in the beginning and 34.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.13 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 32.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1336.58 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 32.3 MB in the beginning and 46.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 622476.06 ms. Allocated memory was 73.4 MB in the beginning and 111.1 MB in the end (delta: 37.7 MB). Free memory was 46.2 MB in the beginning and 62.4 MB in the end (delta: -16.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.62 ms. Allocated memory is still 111.1 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.3s, 205 PlacesBefore, 49 PlacesAfterwards, 210 TransitionsBefore, 41 TransitionsAfterwards, 2284 CoEnabledTransitionPairs, 7 FixpointIterations, 129 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 9 ConcurrentYvCompositions, 13 ChoiceCompositions, 211 TotalNumberOfCompositions, 4463 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3097, positive: 2969, positive conditional: 0, positive unconditional: 2969, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1610, positive: 1578, positive conditional: 0, positive unconditional: 1578, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1610, positive: 1577, positive conditional: 0, positive unconditional: 1577, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 653, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 637, negative conditional: 0, negative unconditional: 637, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3097, positive: 1391, positive conditional: 0, positive unconditional: 1391, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 1610, unknown conditional: 0, unknown unconditional: 1610] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 184, Positive conditional cache size: 0, Positive unconditional cache size: 184, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - 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 - UnprovableResult [Line: 150]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L41] 0 int *queue1, *queue2; [L42] 0 int front1, back1, front2, back2, d1, d2, n1, n2, W; [L43] 0 _Bool v_assert; [L123] 0 pthread_t t1, t2, t3, t4; [L125] 0 W = __VERIFIER_nondet_int() [L38] COND TRUE 0 !cond [L127] 0 n1 = __VERIFIER_nondet_int() [L128] 0 n2 = __VERIFIER_nondet_int() [L129] 0 front1 = __VERIFIER_nondet_int() [L130] 0 front2 = __VERIFIER_nondet_int() [L131] 0 back1 = front1 [L132] 0 back2 = front2 [L133] 0 v_assert = 1 [L38] COND TRUE 0 !cond [L38] COND FALSE 0 !(!cond) [L159] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] 0 int i = 0; [L160] COND TRUE 0 i < size [L161] 0 arr[i] = __VERIFIER_nondet_int() [L160] 0 i++ [L160] COND FALSE 0 !(i < size) [L163] 0 return arr; [L134] 0 queue1 = create_fresh_int_array(n1) [L38] COND FALSE 0 !(!cond) [L38] COND TRUE 0 !cond [L159] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] 0 int i = 0; [L160] COND TRUE 0 i < size [L161] 0 arr[i] = __VERIFIER_nondet_int() [L160] 0 i++ [L160] COND FALSE 0 !(i < size) [L163] 0 return arr; [L135] 0 queue2 = create_fresh_int_array(n2) [L38] COND TRUE 0 !cond [L140] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L48] 1 int w=W; [L48] COND TRUE 1 w>0 [L50] 1 _Bool cond = v_assert; [L52] COND FALSE 1 !(!cond) [L38] COND TRUE 1 !cond [L57] 1 queue1[back1] [L38] COND TRUE 1 !cond [L58] 1 back1++ [L48] 1 w-- [L62] 1 return 0; [L141] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L66] 2 int temp; [L68] 2 _Bool cond = v_assert; [L70] COND TRUE 2 \read(cond) [L38] COND TRUE 2 !cond [L73] EXPR 2 queue1[front1] [L73] 2 temp = queue1[front1] [L74] 2 front1++ [L38] COND FALSE 2 !(!cond) [L78] 2 queue2[back2] [L38] COND FALSE 2 !(!cond) [L79] 2 back2++ [L82] 2 d1 = d1 + temp [L142] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) [L143] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L93] 3 int temp; [L95] 3 _Bool cond = v_assert; [L97] COND TRUE 3 \read(cond) [L38] COND FALSE 3 !(!cond) [L100] EXPR 3 queue2[front2] [L100] 3 temp = queue2[front2] [L101] 3 front2++ [L104] 3 d2 = d2 + temp [L116] 4 v_assert = (d2 <= 2*W) [L119] 4 return 0; [L107] 3 cond = v_assert [L97] COND FALSE 3 !(\read(cond)) [L111] 3 return 0; [L85] 2 cond = v_assert [L89] 2 return 0; [L144] 0 \read(t1) [L144] FCALL, JOIN 1 pthread_join(t1, 0) [L145] 0 \read(t2) [L145] FCALL, JOIN 2 pthread_join(t2, 0) [L146] 0 \read(t3) [L146] FCALL, JOIN 3 pthread_join(t3, 0) [L147] 0 \read(t4) [L147] FCALL, JOIN 4 pthread_join(t4, 0) [L38] COND TRUE 0 !cond [L150] 0 reach_error() - UnprovableResult [Line: 142]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 143]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 140]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 231 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 622.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 27.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 253 SDtfs, 437 SDslu, 545 SDs, 0 SdLazy, 193 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 557 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=800occurred in iteration=2, InterpolantAutomatonStates: 35, 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, 264 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 585.6s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 550 ConstructedInterpolants, 0 QuantifiedInterpolants, 1480 SizeOfPredicates, 31 NumberOfNonLiveVariables, 1508 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 32/38 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN