./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE --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 86b7808e942fd731b99fa59ae3ed20fa7c10b59e3b4a8df178823bf578147f13 ............................................................................................................................................ 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_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE --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 86b7808e942fd731b99fa59ae3ed20fa7c10b59e3b4a8df178823bf578147f13 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:23:37,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:23:37,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:23:37,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:23:37,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:23:37,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:23:37,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:23:37,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:23:37,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:23:37,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:23:37,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:23:37,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:23:37,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:23:37,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:23:37,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:23:37,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:23:38,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:23:38,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:23:38,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:23:38,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:23:38,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:23:38,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:23:38,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:23:38,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:23:38,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:23:38,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:23:38,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:23:38,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:23:38,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:23:38,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:23:38,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:23:38,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:23:38,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:23:38,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:23:38,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:23:38,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:23:38,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:23:38,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:23:38,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:23:38,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:23:38,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:23:38,055 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:23:38,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:23:38,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:23:38,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:23:38,110 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:23:38,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:23:38,110 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:23:38,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:23:38,111 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:23:38,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:23:38,111 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:23:38,112 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:23:38,113 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:23:38,113 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:23:38,113 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:23:38,113 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:23:38,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:23:38,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:23:38,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:23:38,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:23:38,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:23:38,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:23:38,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:23:38,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:23:38,116 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:23:38,116 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:23:38,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:23:38,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:23:38,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:23:38,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:23:38,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:23:38,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:38,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:23:38,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:23:38,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:23:38,120 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:23:38,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:23:38,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:23:38,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:23:38,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:23:38,121 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_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b7808e942fd731b99fa59ae3ed20fa7c10b59e3b4a8df178823bf578147f13 [2021-10-24 10:23:38,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:23:38,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:23:38,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:23:38,491 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:23:38,491 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:23:38,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-24 10:23:38,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/c23fd31a6/7c257e76f9fc4052908894e85affff26/FLAG21968727b [2021-10-24 10:23:39,117 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:23:39,119 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-24 10:23:39,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/c23fd31a6/7c257e76f9fc4052908894e85affff26/FLAG21968727b [2021-10-24 10:23:39,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/c23fd31a6/7c257e76f9fc4052908894e85affff26 [2021-10-24 10:23:39,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:23:39,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:23:39,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:39,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:23:39,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:23:39,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:39" (1/1) ... [2021-10-24 10:23:39,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269cb12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:39, skipping insertion in model container [2021-10-24 10:23:39,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:39" (1/1) ... [2021-10-24 10:23:39,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:23:39,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:39,782 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_97222353-a159-4122-b706-dcc32ef20e47/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-24 10:23:39,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:39,817 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) [2021-10-24 10:23:39,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@30c0a0b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:39, skipping insertion in model container [2021-10-24 10:23:39,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:39,818 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:23:39,820 INFO L168 Benchmark]: Toolchain (without parser) took 369.39 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 97.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:39,821 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 96.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:23:39,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.74 ms. Allocated memory is still 123.7 MB. Free memory was 86.3 MB in the beginning and 97.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:39,824 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 123.7 MB. Free memory was 96.9 MB in the beginning and 96.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.74 ms. Allocated memory is still 123.7 MB. Free memory was 86.3 MB in the beginning and 97.7 MB in the end (delta: -11.3 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: 138]: 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-e943c26 [2021-10-24 10:23:42,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:23:42,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:23:42,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:23:42,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:23:42,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:23:42,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:23:42,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:23:42,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:23:42,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:23:42,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:23:42,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:23:42,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:23:42,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:23:42,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:23:42,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:23:42,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:23:42,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:23:42,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:23:42,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:23:42,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:23:42,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:23:42,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:23:42,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:23:42,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:23:42,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:23:42,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:23:42,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:23:42,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:23:42,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:23:42,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:23:42,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:23:42,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:23:42,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:23:42,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:23:42,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:23:42,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:23:42,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:23:42,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:23:42,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:23:42,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:23:42,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:23:42,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:23:42,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:23:42,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:23:42,272 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:23:42,273 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:23:42,273 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:23:42,273 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:23:42,273 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:23:42,274 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:23:42,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:23:42,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:23:42,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:23:42,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:23:42,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:23:42,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:23:42,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:23:42,276 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:23:42,276 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:23:42,276 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:23:42,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:23:42,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:23:42,277 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:23:42,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:23:42,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:23:42,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:23:42,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:23:42,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:42,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:23:42,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:23:42,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:23:42,279 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:23:42,279 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:23:42,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:23:42,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:23:42,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:23:42,280 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_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b7808e942fd731b99fa59ae3ed20fa7c10b59e3b4a8df178823bf578147f13 [2021-10-24 10:23:42,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:23:42,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:23:42,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:23:42,763 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:23:42,764 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:23:42,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-24 10:23:42,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/975edac58/b0468d1b3d4348aa836aa413b96d6322/FLAG38be843e5 [2021-10-24 10:23:43,440 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:23:43,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c [2021-10-24 10:23:43,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/975edac58/b0468d1b3d4348aa836aa413b96d6322/FLAG38be843e5 [2021-10-24 10:23:43,776 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/data/975edac58/b0468d1b3d4348aa836aa413b96d6322 [2021-10-24 10:23:43,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:23:43,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:23:43,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:43,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:23:43,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:23:43,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:43" (1/1) ... [2021-10-24 10:23:43,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c85a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:43, skipping insertion in model container [2021-10-24 10:23:43,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:43" (1/1) ... [2021-10-24 10:23:43,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:23:43,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:44,081 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_97222353-a159-4122-b706-dcc32ef20e47/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-24 10:23:44,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:44,127 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:23:44,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:44,172 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_97222353-a159-4122-b706-dcc32ef20e47/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-24 10:23:44,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:44,191 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:23:44,229 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_97222353-a159-4122-b706-dcc32ef20e47/sv-benchmarks/c/weaver/popl20-prod-cons3.wvr.c[3432,3445] [2021-10-24 10:23:44,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:44,264 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:23:44,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44 WrapperNode [2021-10-24 10:23:44,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:44,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:23:44,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:23:44,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:23:44,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:23:44,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:23:44,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:23:44,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:23:44,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:23:44,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:23:44,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:23:44,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:23:44,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (1/1) ... [2021-10-24 10:23:44,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:44,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:23:44,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:23:44,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:23:44,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:23:44,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:23:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 10:23:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-24 10:23:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-24 10:23:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-24 10:23:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-24 10:23:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-24 10:23:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-24 10:23:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-24 10:23:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-24 10:23:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-24 10:23:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-24 10:23:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:23:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:23:44,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:23:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:23:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 10:23:44,514 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 10:23:45,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:23:45,688 INFO L299 CfgBuilder]: Removed 39 assume(true) statements. [2021-10-24 10:23:45,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:23:45 BoogieIcfgContainer [2021-10-24 10:23:45,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:23:45,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:23:45,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:23:45,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:23:45,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:23:43" (1/3) ... [2021-10-24 10:23:45,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378dd0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:23:45, skipping insertion in model container [2021-10-24 10:23:45,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:44" (2/3) ... [2021-10-24 10:23:45,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378dd0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:23:45, skipping insertion in model container [2021-10-24 10:23:45,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:23:45" (3/3) ... [2021-10-24 10:23:45,697 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons3.wvr.c [2021-10-24 10:23:45,703 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 10:23:45,704 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:23:45,704 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:23:45,705 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 10:23:45,754 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,755 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,757 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,759 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,760 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,761 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,762 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,762 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,763 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,763 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,787 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,794 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,795 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,795 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,795 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,795 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,795 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,796 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,797 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,797 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,797 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,797 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,798 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,798 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,799 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,799 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,800 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,801 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,804 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,804 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,811 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,811 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,814 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,815 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,816 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,816 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,816 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,822 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,823 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,823 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,823 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~temp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,825 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,825 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,826 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,826 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~temp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,829 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~w~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,829 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,830 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:23:45,840 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-24 10:23:45,884 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:23:45,890 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 [2021-10-24 10:23:45,890 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-24 10:23:45,918 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-24 10:23:45,929 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 205 transitions, 442 flow [2021-10-24 10:23:45,937 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 205 transitions, 442 flow [2021-10-24 10:23:45,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 205 transitions, 442 flow [2021-10-24 10:23:46,041 INFO L129 PetriNetUnfolder]: 18/201 cut-off events. [2021-10-24 10:23:46,045 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-24 10:23:46,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 201 events. 18/201 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 107 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 170. Up to 3 conditions per place. [2021-10-24 10:23:46,057 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2021-10-24 10:24:14,916 WARN L207 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2021-10-24 10:24:16,477 INFO L131 LiptonReduction]: Checked pairs total: 4953 [2021-10-24 10:24:16,478 INFO L133 LiptonReduction]: Total number of compositions: 198 [2021-10-24 10:24:16,485 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 41 transitions, 114 flow [2021-10-24 10:24:16,572 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) [2021-10-24 10:24:16,577 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) [2021-10-24 10:24:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:24:16,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:16,609 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:16,610 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)] === [2021-10-24 10:24:16,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:16,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1759001118, now seen corresponding path program 1 times [2021-10-24 10:24:16,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:16,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677270646] [2021-10-24 10:24:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:16,630 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:16,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:16,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:16,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:24:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:16,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:24:16,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:17,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:24:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:17,382 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:24:17,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677270646] [2021-10-24 10:24:17,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677270646] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:17,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:17,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:24:17,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260116355] [2021-10-24 10:24:17,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:24:17,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:24:17,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:24:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:24:17,407 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 8 states, 8 states have (on average 5.375) internal successors, (43), 7 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) [2021-10-24 10:24:17,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:17,672 INFO L93 Difference]: Finished difference Result 1247 states and 4497 transitions. [2021-10-24 10:24:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:24:17,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 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 26 [2021-10-24 10:24:17,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:17,710 INFO L225 Difference]: With dead ends: 1247 [2021-10-24 10:24:17,711 INFO L226 Difference]: Without dead ends: 760 [2021-10-24 10:24:17,712 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 87.2ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:24:17,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2021-10-24 10:24:17,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2021-10-24 10:24:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 3.496706192358366) internal successors, (2654), 759 states have internal predecessors, (2654), 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) [2021-10-24 10:24:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 2654 transitions. [2021-10-24 10:24:17,823 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 2654 transitions. Word has length 26 [2021-10-24 10:24:17,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:17,824 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 2654 transitions. [2021-10-24 10:24:17,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 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) [2021-10-24 10:24:17,824 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 2654 transitions. [2021-10-24 10:24:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 10:24:17,829 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:17,830 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:17,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:24:18,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:24:18,042 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)] === [2021-10-24 10:24:18,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:18,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1452379582, now seen corresponding path program 1 times [2021-10-24 10:24:18,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:18,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976168974] [2021-10-24 10:24:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:18,044 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:18,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:18,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:18,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:24:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:18,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:24:18,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:18,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:18,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:24:18,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:18,595 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:24:18,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976168974] [2021-10-24 10:24:18,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976168974] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:18,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:18,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:24:18,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020437869] [2021-10-24 10:24:18,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:24:18,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:24:18,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:24:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:24:18,599 INFO L87 Difference]: Start difference. First operand 760 states and 2654 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-24 10:24:18,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:18,631 INFO L93 Difference]: Finished difference Result 834 states and 2836 transitions. [2021-10-24 10:24:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:24:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 [2021-10-24 10:24:18,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:18,642 INFO L225 Difference]: With dead ends: 834 [2021-10-24 10:24:18,642 INFO L226 Difference]: Without dead ends: 834 [2021-10-24 10:24:18,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:24:18,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-10-24 10:24:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2021-10-24 10:24:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 833 states have (on average 3.404561824729892) internal successors, (2836), 833 states have internal predecessors, (2836), 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) [2021-10-24 10:24:18,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 2836 transitions. [2021-10-24 10:24:18,711 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 2836 transitions. Word has length 29 [2021-10-24 10:24:18,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:18,712 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 2836 transitions. [2021-10-24 10:24:18,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-10-24 10:24:18,712 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 2836 transitions. [2021-10-24 10:24:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 10:24:18,717 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:18,717 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:18,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:24:18,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:24:18,929 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)] === [2021-10-24 10:24:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1456352137, now seen corresponding path program 1 times [2021-10-24 10:24:18,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:18,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895358253] [2021-10-24 10:24:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:18,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:18,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:18,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:18,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:24:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:19,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:24:19,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 10:24:19,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:24:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 10:24:19,419 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:24:19,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895358253] [2021-10-24 10:24:19,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895358253] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:19,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:19,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:24:19,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378814195] [2021-10-24 10:24:19,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:24:19,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:24:19,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:24:19,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:24:19,421 INFO L87 Difference]: Start difference. First operand 834 states and 2836 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) [2021-10-24 10:24:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:19,454 INFO L93 Difference]: Finished difference Result 848 states and 2763 transitions. [2021-10-24 10:24:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:24:19,456 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 32 [2021-10-24 10:24:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:19,464 INFO L225 Difference]: With dead ends: 848 [2021-10-24 10:24:19,464 INFO L226 Difference]: Without dead ends: 786 [2021-10-24 10:24:19,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:24:19,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2021-10-24 10:24:19,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2021-10-24 10:24:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 3.299363057324841) internal successors, (2590), 785 states have internal predecessors, (2590), 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) [2021-10-24 10:24:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 2590 transitions. [2021-10-24 10:24:19,500 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 2590 transitions. Word has length 32 [2021-10-24 10:24:19,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:19,500 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 2590 transitions. [2021-10-24 10:24:19,500 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) [2021-10-24 10:24:19,500 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 2590 transitions. [2021-10-24 10:24:19,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-24 10:24:19,504 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:19,504 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:19,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:24:19,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:24:19,716 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)] === [2021-10-24 10:24:19,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:19,717 INFO L82 PathProgramCache]: Analyzing trace with hash 148723121, now seen corresponding path program 1 times [2021-10-24 10:24:19,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:19,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769703213] [2021-10-24 10:24:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:19,718 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:19,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:19,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:19,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:24:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:19,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 10:24:19,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:20,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 10:24:20,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:24:20,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 10:24:20,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:24:20,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769703213] [2021-10-24 10:24:20,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769703213] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:20,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:20,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-24 10:24:20,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143102311] [2021-10-24 10:24:20,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:24:20,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:24:20,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:24:20,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:24:20,183 INFO L87 Difference]: Start difference. First operand 786 states and 2590 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) [2021-10-24 10:24:20,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:20,296 INFO L93 Difference]: Finished difference Result 921 states and 2944 transitions. [2021-10-24 10:24:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:24:20,297 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 [2021-10-24 10:24:20,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:20,305 INFO L225 Difference]: With dead ends: 921 [2021-10-24 10:24:20,306 INFO L226 Difference]: Without dead ends: 787 [2021-10-24 10:24:20,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:24:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-10-24 10:24:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2021-10-24 10:24:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 3.296437659033079) internal successors, (2591), 786 states have internal predecessors, (2591), 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) [2021-10-24 10:24:20,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 2591 transitions. [2021-10-24 10:24:20,342 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 2591 transitions. Word has length 34 [2021-10-24 10:24:20,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:20,342 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 2591 transitions. [2021-10-24 10:24:20,343 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) [2021-10-24 10:24:20,343 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 2591 transitions. [2021-10-24 10:24:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-24 10:24:20,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:20,349 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:20,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:24:20,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:24:20,569 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)] === [2021-10-24 10:24:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:20,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1532443189, now seen corresponding path program 1 times [2021-10-24 10:24:20,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:20,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33859409] [2021-10-24 10:24:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:20,570 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:20,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:20,571 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:20,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:24:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:20,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 10:24:20,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 10:24:21,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:24:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 10:24:21,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:24:21,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33859409] [2021-10-24 10:24:21,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33859409] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:21,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:21,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:24:21,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017631342] [2021-10-24 10:24:21,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:24:21,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:24:21,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:24:21,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:24:21,183 INFO L87 Difference]: Start difference. First operand 787 states and 2591 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-10-24 10:24:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:21,321 INFO L93 Difference]: Finished difference Result 1119 states and 3579 transitions. [2021-10-24 10:24:21,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:24:21,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 [2021-10-24 10:24:21,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:21,330 INFO L225 Difference]: With dead ends: 1119 [2021-10-24 10:24:21,330 INFO L226 Difference]: Without dead ends: 788 [2021-10-24 10:24:21,331 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.9ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:24:21,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2021-10-24 10:24:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2021-10-24 10:24:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 787 states have (on average 3.2935196950444725) internal successors, (2592), 787 states have internal predecessors, (2592), 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) [2021-10-24 10:24:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 2592 transitions. [2021-10-24 10:24:21,366 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 2592 transitions. Word has length 35 [2021-10-24 10:24:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:21,366 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 2592 transitions. [2021-10-24 10:24:21,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2021-10-24 10:24:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 2592 transitions. [2021-10-24 10:24:21,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 10:24:21,370 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:21,370 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:21,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:24:21,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:24:21,583 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)] === [2021-10-24 10:24:21,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:21,584 INFO L82 PathProgramCache]: Analyzing trace with hash -512207034, now seen corresponding path program 1 times [2021-10-24 10:24:21,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:21,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445243402] [2021-10-24 10:24:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:21,585 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:21,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:21,586 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:21,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:24:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:22,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-24 10:24:22,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:24,466 INFO L354 Elim1Store]: treesize reduction 1262, result has 5.7 percent of original size [2021-10-24 10:24:24,467 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 [2021-10-24 10:29:07,995 WARN L207 SmtUtils]: Spent 4.64 m on a formula simplification. DAG size of input: 638 DAG size of output: 153 [2021-10-24 10:29:07,998 INFO L354 Elim1Store]: treesize reduction 3775, result has 11.6 percent of original size [2021-10-24 10:29:07,998 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 564 [2021-10-24 10:34:16,796 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-24 10:34:16,797 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:34:16,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445243402] [2021-10-24 10:34:16,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/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") [2021-10-24 10:34:16,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1207136297] [2021-10-24 10:34:16,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:34:16,799 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:34:16,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:34:16,806 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:34:16,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-24 10:34:16,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-24 10:34:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:34:18,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-24 10:34:18,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:34:18,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-24 10:34:18,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965111334] [2021-10-24 10:34:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:34:18,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:34:18,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:34:18,168 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:34:18,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-24 10:34:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:34:18,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 62 conjunts are in the unsatisfiable core [2021-10-24 10:34:18,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:34:18,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-24 10:34:18,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:34:18,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-24 10:34:18,586 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-24 10:34:18,586 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-24 10:34:18,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:34:18,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-24 10:34:18,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-24 10:34:18,595 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-24 10:34:18,596 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-24 10:34:18,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:34:18,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:34:19,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-24 10:34:19,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97222353-a159-4122-b706-dcc32ef20e47/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:34:19,225 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-24 10:34:19,226 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:34:19,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:34:19 BasicIcfg [2021-10-24 10:34:19,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:34:19,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:34:19,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:34:19,251 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:34:19,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:23:45" (3/4) ... [2021-10-24 10:34:19,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:34:19,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:34:19,256 INFO L168 Benchmark]: Toolchain (without parser) took 635475.05 ms. Allocated memory was 65.0 MB in the beginning and 107.0 MB in the end (delta: 41.9 MB). Free memory was 45.5 MB in the beginning and 46.2 MB in the end (delta: -674.4 kB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:34:19,256 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 65.0 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:34:19,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.67 ms. Allocated memory is still 65.0 MB. Free memory was 45.4 MB in the beginning and 44.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:34:19,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.91 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 41.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:34:19,258 INFO L168 Benchmark]: Boogie Preprocessor took 78.79 ms. Allocated memory is still 65.0 MB. Free memory was 41.8 MB in the beginning and 39.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:34:19,258 INFO L168 Benchmark]: RCFGBuilder took 1272.14 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 39.8 MB in the beginning and 47.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:34:19,259 INFO L168 Benchmark]: TraceAbstraction took 633558.31 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 46.2 MB in the end (delta: 958.6 kB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:34:19,259 INFO L168 Benchmark]: Witness Printer took 4.11 ms. Allocated memory is still 107.0 MB. Free memory is still 46.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:34:19,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 65.0 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 483.67 ms. Allocated memory is still 65.0 MB. Free memory was 45.4 MB in the beginning and 44.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.91 ms. Allocated memory is still 65.0 MB. Free memory was 44.0 MB in the beginning and 41.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.79 ms. Allocated memory is still 65.0 MB. Free memory was 41.8 MB in the beginning and 39.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1272.14 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 39.8 MB in the beginning and 47.6 MB in the end (delta: -7.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 633558.31 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 47.2 MB in the beginning and 46.2 MB in the end (delta: 958.6 kB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.11 ms. Allocated memory is still 107.0 MB. Free memory is still 46.2 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: 30540.5ms, 200 PlacesBefore, 49 PlacesAfterwards, 205 TransitionsBefore, 41 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 8 FixpointIterations, 121 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 7 ConcurrentYvCompositions, 13 ChoiceCompositions, 198 TotalNumberOfCompositions, 4953 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2734, positive: 2563, positive conditional: 0, positive unconditional: 2563, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1232, positive: 1193, positive conditional: 0, positive unconditional: 1193, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1232, positive: 1191, positive conditional: 0, positive unconditional: 1191, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 985, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 878, negative conditional: 0, negative unconditional: 878, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2734, positive: 1370, positive conditional: 0, positive unconditional: 1370, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 1232, unknown conditional: 0, unknown unconditional: 1232] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 139, Positive conditional cache size: 0, Positive unconditional cache size: 139, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 129]: 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; [L102] 0 pthread_t t1, t2, t3, t4; [L104] 0 W = __VERIFIER_nondet_int() [L38] COND FALSE 0 !(!cond) [L106] 0 n1 = __VERIFIER_nondet_int() [L107] 0 n2 = __VERIFIER_nondet_int() [L108] 0 front1 = __VERIFIER_nondet_int() [L109] 0 front2 = __VERIFIER_nondet_int() [L110] 0 back1 = front1 [L111] 0 back2 = front2 [L112] 0 v_assert = 1 [L38] COND TRUE 0 !cond [L38] COND FALSE 0 !(!cond) [L138] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L139] 0 int i = 0; [L139] COND TRUE 0 i < size [L140] 0 arr[i] = __VERIFIER_nondet_int() [L139] 0 i++ [L142] 0 return arr; [L113] 0 queue1 = create_fresh_int_array(n1) [L38] COND FALSE 0 !(!cond) [L38] COND TRUE 0 !cond [L138] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L139] 0 int i = 0; [L139] COND TRUE 0 i < size [L140] 0 arr[i] = __VERIFIER_nondet_int() [L139] 0 i++ [L142] 0 return arr; [L114] 0 queue2 = create_fresh_int_array(n2) [L38] COND TRUE 0 !cond [L119] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L48] 1 int w=W; [L48] COND TRUE 1 w>0 [L49] COND FALSE 1 !(!v_assert) [L38] COND FALSE 1 !(!cond) [L54] 1 queue1[back1] [L38] COND FALSE 1 !(!cond) [L55] 1 back1++ [L48] 1 w-- [L48] COND TRUE 1 w>0 [L49] COND TRUE 1 !v_assert [L59] 1 return 0; [L120] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L63] 2 int temp; [L64] COND TRUE 2 \read(v_assert) [L38] COND FALSE 2 !(!cond) [L67] EXPR 2 queue1[front1] [L67] 2 temp = queue1[front1] [L68] 2 front1++ [L38] COND FALSE 2 !(!cond) [L72] 2 queue2[back2] [L38] COND FALSE 2 !(!cond) [L73] 2 back2++ [L75] 2 d1 = d1 + temp [L121] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) [L122] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L123] 0 \read(t1) [L82] 3 int temp; [L123] FCALL, JOIN 1 pthread_join(t1, 0) [L124] 0 \read(t2) [L83] COND TRUE 3 \read(v_assert) [L38] COND FALSE 3 !(!cond) [L86] EXPR 3 queue2[front2] [L86] 3 temp = queue2[front2] [L87] 3 front2++ [L89] 3 d2 = d2 + temp [L96] 4 v_assert = (d2 <= 2*W) [L98] 4 return 0; [L83] COND FALSE 3 !(\read(v_assert)) [L92] 3 return 0; [L78] 2 return 0; [L124] FCALL, JOIN 2 pthread_join(t2, 0) [L125] 0 \read(t3) [L125] FCALL, JOIN 3 pthread_join(t3, 0) [L126] 0 \read(t4) [L126] FCALL, JOIN 4 pthread_join(t4, 0) [L38] COND TRUE 0 !cond [L129] 0 reach_error() - UnprovableResult [Line: 121]: 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: 119]: 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: 120]: 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: 122]: 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, 221 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 633340.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 57.9ms, AutomataDifference: 687.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30681.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 171 SDtfs, 166 SDslu, 357 SDs, 0 SdLazy, 87 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 314.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 305 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 201.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=834occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 271.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 113.5ms SsaConstructionTime, 442.1ms SatisfiabilityAnalysisTime, 1871.2ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 952 SizeOfPredicates, 25 NumberOfNonLiveVariables, 728 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 20/20 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...