./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG --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 2173db9a2274c43e93688b39a8ab5256e9054c31e7330b4f58c34c545dbb4480 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG --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 2173db9a2274c43e93688b39a8ab5256e9054c31e7330b4f58c34c545dbb4480 ......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:56:50,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:56:50,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:56:51,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:56:51,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:56:51,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:56:51,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:56:51,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:56:51,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:56:51,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:56:51,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:56:51,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:56:51,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:56:51,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:56:51,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:56:51,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:56:51,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:56:51,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:56:51,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:56:51,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:56:51,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:56:51,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:56:51,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:56:51,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:56:51,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:56:51,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:56:51,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:56:51,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:56:51,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:56:51,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:56:51,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:56:51,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:56:51,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:56:51,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:56:51,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:56:51,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:56:51,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:56:51,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:56:51,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:56:51,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:56:51,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:56:51,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:56:51,122 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:56:51,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:56:51,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:56:51,124 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:56:51,124 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:56:51,125 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:56:51,125 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:56:51,126 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:56:51,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:56:51,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:56:51,127 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:56:51,127 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:56:51,128 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:56:51,128 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:56:51,128 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:56:51,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:56:51,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:56:51,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:56:51,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:56:51,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:56:51,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:56:51,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:56:51,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:56:51,131 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:56:51,132 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:56:51,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:56:51,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:56:51,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:56:51,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:56:51,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:56:51,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:56:51,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:56:51,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:56:51,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:56:51,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:56:51,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:56:51,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:56:51,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:56:51,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:56:51,135 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_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2173db9a2274c43e93688b39a8ab5256e9054c31e7330b4f58c34c545dbb4480 [2021-10-29 05:56:51,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:56:51,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:56:51,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:56:51,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:56:51,482 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:56:51,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2021-10-29 05:56:51,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/6845ad792/e7b21885b4304f2caba6e34220efec90/FLAG7d3a5f1fe [2021-10-29 05:56:52,044 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:56:52,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2021-10-29 05:56:52,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/6845ad792/e7b21885b4304f2caba6e34220efec90/FLAG7d3a5f1fe [2021-10-29 05:56:52,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/6845ad792/e7b21885b4304f2caba6e34220efec90 [2021-10-29 05:56:52,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:56:52,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:56:52,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:56:52,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:56:52,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:56:52,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:56:52" (1/1) ... [2021-10-29 05:56:52,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253ff6bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:52, skipping insertion in model container [2021-10-29 05:56:52,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:56:52" (1/1) ... [2021-10-29 05:56:52,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:56:52,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:56:52,650 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_94e464c7-e9d2-4b74-8414-26edd75ec3e0/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[2987,3000] [2021-10-29 05:56:52,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:56:52,669 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) [2021-10-29 05:56:52,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35f1a17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:52, skipping insertion in model container [2021-10-29 05:56:52,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:56:52,670 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:56:52,672 INFO L168 Benchmark]: Toolchain (without parser) took 268.11 ms. Allocated memory is still 94.4 MB. Free memory was 61.7 MB in the beginning and 70.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:52,673 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory is still 49.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:56:52,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.50 ms. Allocated memory is still 94.4 MB. Free memory was 61.6 MB in the beginning and 71.1 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:56:52,677 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 94.4 MB. Free memory is still 49.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.50 ms. Allocated memory is still 94.4 MB. Free memory was 61.6 MB in the beginning and 71.1 MB in the end (delta: -9.5 MB). 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: 111]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:56:55,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:56:55,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:56:55,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:56:55,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:56:55,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:56:55,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:56:55,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:56:55,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:56:55,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:56:55,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:56:55,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:56:55,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:56:55,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:56:55,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:56:55,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:56:55,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:56:55,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:56:55,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:56:55,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:56:55,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:56:55,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:56:55,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:56:55,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:56:55,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:56:55,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:56:55,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:56:55,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:56:55,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:56:55,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:56:55,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:56:55,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:56:55,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:56:55,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:56:55,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:56:55,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:56:55,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:56:55,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:56:55,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:56:55,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:56:55,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:56:55,130 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:56:55,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:56:55,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:56:55,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:56:55,166 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:56:55,166 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:56:55,167 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:56:55,169 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:56:55,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:56:55,170 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:56:55,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:56:55,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:56:55,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:56:55,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:56:55,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:56:55,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:56:55,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:56:55,173 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:56:55,174 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:56:55,174 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:56:55,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:56:55,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:56:55,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:56:55,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:56:55,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:56:55,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:56:55,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:56:55,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:56:55,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:56:55,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:56:55,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:56:55,177 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:56:55,177 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:56:55,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:56:55,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:56:55,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:56:55,179 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_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2173db9a2274c43e93688b39a8ab5256e9054c31e7330b4f58c34c545dbb4480 [2021-10-29 05:56:55,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:56:55,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:56:55,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:56:55,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:56:55,647 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:56:55,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2021-10-29 05:56:55,723 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/dc48823c3/5240eec306d1442ebe513a882979991c/FLAG3c01d26dd [2021-10-29 05:56:56,309 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:56:56,309 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2021-10-29 05:56:56,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/dc48823c3/5240eec306d1442ebe513a882979991c/FLAG3c01d26dd [2021-10-29 05:56:56,649 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/data/dc48823c3/5240eec306d1442ebe513a882979991c [2021-10-29 05:56:56,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:56:56,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:56:56,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:56:56,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:56:56,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:56:56,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:56:56" (1/1) ... [2021-10-29 05:56:56,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c6a00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:56, skipping insertion in model container [2021-10-29 05:56:56,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:56:56" (1/1) ... [2021-10-29 05:56:56,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:56:56,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:56:56,971 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_94e464c7-e9d2-4b74-8414-26edd75ec3e0/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[2987,3000] [2021-10-29 05:56:56,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:56:57,013 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:56:57,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:56:57,059 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_94e464c7-e9d2-4b74-8414-26edd75ec3e0/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[2987,3000] [2021-10-29 05:56:57,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:56:57,086 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:56:57,124 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_94e464c7-e9d2-4b74-8414-26edd75ec3e0/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[2987,3000] [2021-10-29 05:56:57,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:56:57,165 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:56:57,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57 WrapperNode [2021-10-29 05:56:57,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:56:57,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:56:57,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:56:57,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:56:57,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:56:57,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:56:57,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:56:57,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:56:57,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:56:57,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:56:57,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:56:57,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:56:57,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (1/1) ... [2021-10-29 05:56:57,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:56:57,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:56:57,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:56:57,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:56:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-29 05:56:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-29 05:56:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-29 05:56:57,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-29 05:56:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:56:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:56:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 05:56:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 05:56:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:56:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:56:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:56:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:56:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:56:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:56:57,417 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:56:58,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:56:58,465 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-29 05:56:58,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:56:58 BoogieIcfgContainer [2021-10-29 05:56:58,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:56:58,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:56:58,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:56:58,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:56:58,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:56:56" (1/3) ... [2021-10-29 05:56:58,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41215dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:56:58, skipping insertion in model container [2021-10-29 05:56:58,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:56:57" (2/3) ... [2021-10-29 05:56:58,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41215dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:56:58, skipping insertion in model container [2021-10-29 05:56:58,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:56:58" (3/3) ... [2021-10-29 05:56:58,475 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2021-10-29 05:56:58,480 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:56:58,481 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:56:58,481 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:56:58,481 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:56:58,511 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,511 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,512 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,512 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,512 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,512 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,512 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,512 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,513 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,513 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,513 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,513 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,514 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,514 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,514 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,514 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,515 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,515 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,515 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,515 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,516 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,516 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,516 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,516 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,517 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,517 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,517 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,518 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,518 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,519 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,519 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,519 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,519 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,519 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,520 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,520 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,520 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,520 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,521 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,521 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,521 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,521 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,521 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,522 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,522 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,522 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,522 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,523 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,523 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,523 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,523 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,524 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,526 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,527 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,527 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,527 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,528 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,528 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,528 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,528 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,528 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:56:58,537 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-29 05:56:58,583 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:56:58,589 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 [2021-10-29 05:56:58,590 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 05:56:58,606 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:56:58,616 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 153 transitions, 322 flow [2021-10-29 05:56:58,619 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 153 transitions, 322 flow [2021-10-29 05:56:58,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 153 transitions, 322 flow [2021-10-29 05:56:58,724 INFO L129 PetriNetUnfolder]: 13/151 cut-off events. [2021-10-29 05:56:58,726 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-29 05:56:58,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 151 events. 13/151 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 119. Up to 2 conditions per place. [2021-10-29 05:56:58,738 INFO L116 LiptonReduction]: Number of co-enabled transitions 500 [2021-10-29 05:57:13,803 INFO L131 LiptonReduction]: Checked pairs total: 775 [2021-10-29 05:57:13,803 INFO L133 LiptonReduction]: Total number of compositions: 152 [2021-10-29 05:57:13,813 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 22 transitions, 60 flow [2021-10-29 05:57:13,824 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 36 states, 35 states have (on average 2.2) internal successors, (77), 35 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 35 states have (on average 2.2) internal successors, (77), 35 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:13,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:57:13,833 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:13,833 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:13,834 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-29 05:57:13,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash -920062512, now seen corresponding path program 1 times [2021-10-29 05:57:13,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:57:13,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891321628] [2021-10-29 05:57:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:13,856 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:57:13,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:57:13,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:57:13,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:57:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:14,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:57:14,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:57:14,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:14,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:57:14,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:14,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:57:14,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891321628] [2021-10-29 05:57:14,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891321628] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:14,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:14,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-29 05:57:14,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020035843] [2021-10-29 05:57:14,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:57:14,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:57:14,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:57:14,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:57:14,464 INFO L87 Difference]: Start difference. First operand has 36 states, 35 states have (on average 2.2) internal successors, (77), 35 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:14,578 INFO L93 Difference]: Finished difference Result 67 states and 147 transitions. [2021-10-29 05:57:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:57:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 05:57:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:14,595 INFO L225 Difference]: With dead ends: 67 [2021-10-29 05:57:14,596 INFO L226 Difference]: Without dead ends: 62 [2021-10-29 05:57:14,597 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:57:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-29 05:57:14,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 48. [2021-10-29 05:57:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 47 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 104 transitions. [2021-10-29 05:57:14,655 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 104 transitions. Word has length 13 [2021-10-29 05:57:14,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:14,656 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 104 transitions. [2021-10-29 05:57:14,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:14,657 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 104 transitions. [2021-10-29 05:57:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:57:14,659 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:57:14,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:57:14,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:57:14,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:57:14,880 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-29 05:57:14,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:57:14,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2125512673, now seen corresponding path program 1 times [2021-10-29 05:57:14,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:57:14,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798695775] [2021-10-29 05:57:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:57:14,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:57:14,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:57:14,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:57:14,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:57:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:57:15,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:57:15,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:57:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:15,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:57:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:57:15,259 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:57:15,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798695775] [2021-10-29 05:57:15,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798695775] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:57:15,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:57:15,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:57:15,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840704269] [2021-10-29 05:57:15,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:57:15,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:57:15,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:57:15,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:57:15,264 INFO L87 Difference]: Start difference. First operand 48 states and 104 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:57:15,271 INFO L93 Difference]: Finished difference Result 22 states and 33 transitions. [2021-10-29 05:57:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:57:15,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 05:57:15,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:57:15,277 INFO L225 Difference]: With dead ends: 22 [2021-10-29 05:57:15,277 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:57:15,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:57:15,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:57:15,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:57:15,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:57:15,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-29 05:57:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:57:15,279 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:57:15,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:57:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:57:15,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:57:15,285 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:57:15,285 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:57:15,286 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 05:57:15,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:57:15,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:57:15,501 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:57:15,503 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:57:15,503 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:57:15,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:57:15 BasicIcfg [2021-10-29 05:57:15,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:57:15,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:57:15,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:57:15,507 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:57:15,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:56:58" (3/4) ... [2021-10-29 05:57:15,511 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:57:15,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-29 05:57:15,518 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-29 05:57:15,524 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-29 05:57:15,525 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:57:15,525 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:57:15,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:57:15,603 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:57:15,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:57:15,605 INFO L168 Benchmark]: Toolchain (without parser) took 18942.71 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 55.1 MB in the beginning and 77.2 MB in the end (delta: -22.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:57:15,609 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory was 71.7 MB in the beginning and 71.7 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:57:15,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.17 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 66.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:15,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 64.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:15,611 INFO L168 Benchmark]: Boogie Preprocessor took 74.72 ms. Allocated memory is still 90.2 MB. Free memory was 64.6 MB in the beginning and 62.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:15,611 INFO L168 Benchmark]: RCFGBuilder took 1149.50 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 65.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:15,612 INFO L168 Benchmark]: TraceAbstraction took 17037.04 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 64.9 MB in the beginning and 81.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:15,613 INFO L168 Benchmark]: Witness Printer took 97.21 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 77.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:57:15,615 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 90.2 MB. Free memory was 71.7 MB in the beginning and 71.7 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 501.17 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 66.9 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 64.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.72 ms. Allocated memory is still 90.2 MB. Free memory was 64.6 MB in the beginning and 62.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1149.50 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 65.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17037.04 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 64.9 MB in the beginning and 81.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. * Witness Printer took 97.21 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 77.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.1s, 147 PlacesBefore, 25 PlacesAfterwards, 153 TransitionsBefore, 22 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 7 FixpointIterations, 101 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 4 ConcurrentYvCompositions, 9 ChoiceCompositions, 152 TotalNumberOfCompositions, 775 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 682, positive: 640, positive conditional: 0, positive unconditional: 640, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 367, positive: 358, positive conditional: 0, positive unconditional: 358, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 367, positive: 355, positive conditional: 0, positive unconditional: 355, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 531, positive: 173, positive conditional: 0, positive unconditional: 173, negative: 358, negative conditional: 0, negative unconditional: 358, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 682, positive: 282, positive conditional: 0, positive unconditional: 282, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 367, unknown conditional: 0, unknown unconditional: 367] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 102]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 161 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 16.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 8 SDslu, 12 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 6 NumberOfNonLiveVariables, 185 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:57:15,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94e464c7-e9d2-4b74-8414-26edd75ec3e0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...