./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:41:54,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:41:54,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:41:54,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:41:54,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:41:54,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:41:54,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:41:54,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:41:54,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:41:54,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:41:54,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:41:54,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:41:54,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:41:54,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:41:54,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:41:54,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:41:54,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:41:54,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:41:54,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:41:54,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:41:54,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:41:54,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:41:54,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:41:54,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:41:54,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:41:54,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:41:54,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:41:54,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:41:54,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:41:54,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:41:54,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:41:54,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:41:54,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:41:54,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:41:54,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:41:54,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:41:54,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:41:54,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:41:54,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:41:54,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:41:54,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:41:54,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 16:41:54,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:41:54,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:41:54,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:41:54,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:41:54,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:41:54,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:41:54,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:41:54,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:41:54,290 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:41:54,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:41:54,291 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:41:54,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:41:54,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:41:54,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:41:54,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:41:54,292 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 16:41:54,292 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 16:41:54,293 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 16:41:54,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:41:54,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:41:54,293 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:41:54,293 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:41:54,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:41:54,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:41:54,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:41:54,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:41:54,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:41:54,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:41:54,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:41:54,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:41:54,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:41:54,296 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:41:54,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:41:54,297 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-11-25 16:41:54,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:41:54,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:41:54,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:41:54,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:41:54,625 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:41:54,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 16:41:57,732 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:41:58,187 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:41:58,188 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 16:41:58,215 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data/46a41ec80/1361362510a442fbabd6914d19604d39/FLAG701e9078f [2022-11-25 16:41:58,235 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data/46a41ec80/1361362510a442fbabd6914d19604d39 [2022-11-25 16:41:58,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:41:58,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:41:58,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:41:58,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:41:58,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:41:58,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:41:58" (1/1) ... [2022-11-25 16:41:58,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258a11fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:58, skipping insertion in model container [2022-11-25 16:41:58,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:41:58" (1/1) ... [2022-11-25 16:41:58,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:41:58,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:41:58,951 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:58,954 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 16:41:58,966 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:58,975 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:58,977 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:58,985 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:58,992 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:58,997 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:59,001 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:59,011 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:41:59,011 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:59,016 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:41:59,018 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:41:59,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:41:59,034 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-25 16:41:59,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5084a5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:41:59, skipping insertion in model container [2022-11-25 16:41:59,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:41:59,035 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-25 16:41:59,037 INFO L158 Benchmark]: Toolchain (without parser) took 796.34ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 116.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 16:41:59,038 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:41:59,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.59ms. Allocated memory is still 159.4MB. Free memory was 124.9MB in the beginning and 116.7MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 16:41:59,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.59ms. Allocated memory is still 159.4MB. Free memory was 124.9MB in the beginning and 116.7MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1284]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:42:01,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:42:01,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:42:01,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:42:01,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:42:01,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:42:01,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:42:01,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:42:01,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:42:01,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:42:01,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:42:01,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:42:01,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:42:01,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:42:01,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:42:01,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:42:01,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:42:01,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:42:01,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:42:01,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:42:01,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:42:01,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:42:01,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:42:01,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:42:01,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:42:01,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:42:01,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:42:01,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:42:01,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:42:01,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:42:01,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:42:01,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:42:01,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:42:01,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:42:01,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:42:01,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:42:01,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:42:01,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:42:01,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:42:01,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:42:01,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:42:01,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-25 16:42:01,578 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:42:01,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:42:01,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:42:01,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:42:01,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:42:01,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:42:01,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:42:01,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:42:01,583 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:42:01,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:42:01,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:42:01,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:42:01,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:42:01,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:42:01,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:42:01,585 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 16:42:01,586 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 16:42:01,586 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 16:42:01,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:42:01,586 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:42:01,586 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 16:42:01,587 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 16:42:01,587 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:42:01,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:42:01,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:42:01,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:42:01,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:42:01,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:42:01,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:42:01,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:42:01,589 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 16:42:01,589 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 16:42:01,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:42:01,590 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:42:01,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:42:01,590 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 16:42:01,590 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-11-25 16:42:01,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:42:01,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:42:01,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:42:02,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:42:02,002 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:42:02,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 16:42:05,069 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:42:05,385 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:42:05,386 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 16:42:05,402 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data/bff6f10df/036ffdebfee843f39d9f5a87161db4e2/FLAG2e1f5f528 [2022-11-25 16:42:05,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/data/bff6f10df/036ffdebfee843f39d9f5a87161db4e2 [2022-11-25 16:42:05,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:42:05,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:42:05,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:42:05,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:42:05,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:42:05,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:05" (1/1) ... [2022-11-25 16:42:05,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3584cb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:05, skipping insertion in model container [2022-11-25 16:42:05,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:05" (1/1) ... [2022-11-25 16:42:05,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:42:05,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:42:06,380 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 16:42:06,389 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,396 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,398 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,406 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,412 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,416 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,419 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,425 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:42:06,426 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,431 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:42:06,431 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:42:06,453 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 16:42:06,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:42:06,518 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,519 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 16:42:06,523 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,526 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,528 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,531 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,536 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,538 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,540 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,545 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:42:06,545 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,547 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:42:06,547 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:42:06,562 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:42:06,616 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 16:42:06,618 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,620 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,621 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,627 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,637 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,638 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,642 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,644 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:42:06,644 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,645 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 16:42:06,647 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 16:42:06,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:42:06,774 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:42:06,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06 WrapperNode [2022-11-25 16:42:06,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:42:06,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:42:06,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:42:06,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:42:06,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,839 INFO L138 Inliner]: procedures = 376, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 156 [2022-11-25 16:42:06,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:42:06,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:42:06,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:42:06,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:42:06,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:42:06,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:42:06,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:42:06,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:42:06,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (1/1) ... [2022-11-25 16:42:06,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:42:06,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:42:06,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:42:06,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:42:06,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 16:42:06,968 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2022-11-25 16:42:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2022-11-25 16:42:06,968 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2022-11-25 16:42:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:42:06,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:42:06,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:42:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:42:06,983 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:42:07,179 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:42:07,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:42:07,814 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:42:07,824 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:42:07,825 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 16:42:07,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:07 BoogieIcfgContainer [2022-11-25 16:42:07,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:42:07,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:42:07,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:42:07,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:42:07,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:42:05" (1/3) ... [2022-11-25 16:42:07,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322be30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:42:07, skipping insertion in model container [2022-11-25 16:42:07,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:06" (2/3) ... [2022-11-25 16:42:07,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322be30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:42:07, skipping insertion in model container [2022-11-25 16:42:07,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:07" (3/3) ... [2022-11-25 16:42:07,838 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2022-11-25 16:42:07,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:42:07,861 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-25 16:42:07,862 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:42:07,960 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 16:42:08,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 228 transitions, 478 flow [2022-11-25 16:42:08,262 INFO L130 PetriNetUnfolder]: 39/467 cut-off events. [2022-11-25 16:42:08,262 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 16:42:08,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 467 events. 39/467 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1971 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 254. Up to 8 conditions per place. [2022-11-25 16:42:08,271 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 228 transitions, 478 flow [2022-11-25 16:42:08,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 228 transitions, 478 flow [2022-11-25 16:42:08,293 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:42:08,320 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 228 transitions, 478 flow [2022-11-25 16:42:08,330 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 228 transitions, 478 flow [2022-11-25 16:42:08,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 228 transitions, 478 flow [2022-11-25 16:42:08,429 INFO L130 PetriNetUnfolder]: 39/467 cut-off events. [2022-11-25 16:42:08,429 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 16:42:08,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 467 events. 39/467 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1971 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 254. Up to 8 conditions per place. [2022-11-25 16:42:08,443 INFO L119 LiptonReduction]: Number of co-enabled transitions 6766 [2022-11-25 16:42:58,724 WARN L233 SmtUtils]: Spent 16.94s on a formula simplification. DAG size of input: 257 DAG size of output: 245 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:43:06,574 WARN L233 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 231 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:43:34,008 WARN L233 SmtUtils]: Spent 27.43s on a formula simplification. DAG size of input: 263 DAG size of output: 251 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:43:46,514 WARN L233 SmtUtils]: Spent 12.50s on a formula simplification that was a NOOP. DAG size: 237 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:44:02,492 WARN L233 SmtUtils]: Spent 15.97s on a formula simplification. DAG size of input: 220 DAG size of output: 219 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:44:10,094 WARN L233 SmtUtils]: Spent 7.60s on a formula simplification that was a NOOP. DAG size: 205 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:44:18,021 WARN L233 SmtUtils]: Spent 7.92s on a formula simplification. DAG size of input: 232 DAG size of output: 229 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:44:33,409 WARN L233 SmtUtils]: Spent 7.15s on a formula simplification. DAG size of input: 275 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:48:05,738 WARN L233 SmtUtils]: Spent 3.31m on a formula simplification. DAG size of input: 296 DAG size of output: 286 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:49:36,669 WARN L233 SmtUtils]: Spent 1.52m on a formula simplification that was a NOOP. DAG size: 286 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:53:27,367 WARN L233 SmtUtils]: Spent 3.84m on a formula simplification. DAG size of input: 309 DAG size of output: 299 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:55:32,055 WARN L233 SmtUtils]: Spent 2.08m on a formula simplification that was a NOOP. DAG size: 299 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 16:55:32,063 INFO L134 LiptonReduction]: Checked pairs total: 16958 [2022-11-25 16:55:32,063 INFO L136 LiptonReduction]: Total number of compositions: 247 [2022-11-25 16:55:32,087 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:55:32,093 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@51643e78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:55:32,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-25 16:55:32,096 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 16:55:32,097 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:55:32,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:32,098 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 16:55:32,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-25 16:55:32,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:32,107 INFO L85 PathProgramCache]: Analyzing trace with hash 833, now seen corresponding path program 1 times [2022-11-25 16:55:32,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:32,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133470043] [2022-11-25 16:55:32,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:32,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:32,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:32,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:32,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 16:55:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:32,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 16:55:32,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:32,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:55:32,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:55:32,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133470043] [2022-11-25 16:55:32,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133470043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:32,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:32,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 16:55:32,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576855947] [2022-11-25 16:55:32,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:32,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:55:32,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:55:32,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:55:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:55:32,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 475 [2022-11-25 16:55:32,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 148 flow. Second operand has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:32,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:55:32,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 475 [2022-11-25 16:55:32,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:55:33,406 INFO L130 PetriNetUnfolder]: 910/1894 cut-off events. [2022-11-25 16:55:33,406 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-11-25 16:55:33,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3505 conditions, 1894 events. 910/1894 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 13141 event pairs, 807 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 2857. Up to 1554 conditions per place. [2022-11-25 16:55:33,422 INFO L137 encePairwiseOnDemand]: 467/475 looper letters, 38 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2022-11-25 16:55:33,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 55 transitions, 208 flow [2022-11-25 16:55:33,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:55:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:55:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 464 transitions. [2022-11-25 16:55:33,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4884210526315789 [2022-11-25 16:55:33,454 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 464 transitions. [2022-11-25 16:55:33,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 464 transitions. [2022-11-25 16:55:33,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:55:33,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 464 transitions. [2022-11-25 16:55:33,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 232.0) internal successors, (464), 2 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:33,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:33,482 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:33,485 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 148 flow. Second operand 2 states and 464 transitions. [2022-11-25 16:55:33,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 55 transitions, 208 flow [2022-11-25 16:55:33,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 55 transitions, 208 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:55:33,499 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 132 flow [2022-11-25 16:55:33,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2022-11-25 16:55:33,506 INFO L288 CegarLoopForPetriNet]: 63 programPoint places, -7 predicate places. [2022-11-25 16:55:33,507 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 132 flow [2022-11-25 16:55:33,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:33,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:55:33,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 16:55:33,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 16:55:33,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:33,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-25 16:55:33,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash 26540, now seen corresponding path program 1 times [2022-11-25 16:55:33,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:55:33,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741728919] [2022-11-25 16:55:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:33,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:55:33,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:55:33,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:55:33,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 16:55:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:33,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:55:34,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:55:55,930 WARN L233 SmtUtils]: Spent 20.50s on a formula simplification. DAG size of input: 195 DAG size of output: 62 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 16:55:55,932 INFO L321 Elim1Store]: treesize reduction 434, result has 14.9 percent of original size [2022-11-25 16:55:55,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 15 new quantified variables, introduced 15 case distinctions, treesize of input 741 treesize of output 754 [2022-11-25 16:55:57,446 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 16:55:57,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 729 treesize of output 728 [2022-11-25 16:55:57,631 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 16:55:57,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 83 treesize of output 31 [2022-11-25 16:55:57,814 INFO L217 Elim1Store]: Index analysis took 113 ms [2022-11-25 16:55:59,125 INFO L321 Elim1Store]: treesize reduction 670, result has 24.5 percent of original size [2022-11-25 16:55:59,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 107 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 127 treesize of output 315 [2022-11-25 16:55:59,233 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:55:59,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 16:55:59,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 4 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 83 treesize of output 31 [2022-11-25 16:56:01,045 INFO L321 Elim1Store]: treesize reduction 670, result has 24.5 percent of original size [2022-11-25 16:56:01,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 107 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 45 case distinctions, treesize of input 127 treesize of output 315 [2022-11-25 16:56:01,171 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:01,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:01,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:04,520 INFO L321 Elim1Store]: treesize reduction 1056, result has 12.1 percent of original size [2022-11-25 16:56:04,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 107 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 66 case distinctions, treesize of input 491 treesize of output 576 [2022-11-25 16:56:04,645 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:05,317 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:06,003 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:06,720 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:07,200 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:08,070 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:08,631 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:09,374 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:10,033 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:10,411 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:11,116 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:11,863 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:12,222 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:12,693 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:13,085 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:13,460 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-11-25 16:56:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:14,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:56:14,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:56:14,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741728919] [2022-11-25 16:56:14,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741728919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:14,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:14,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:56:14,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747494955] [2022-11-25 16:56:14,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:14,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:56:14,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:56:14,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:56:14,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:56:17,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 475 [2022-11-25 16:56:17,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:17,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:56:17,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 475 [2022-11-25 16:56:17,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:56:18,737 INFO L130 PetriNetUnfolder]: 910/1855 cut-off events. [2022-11-25 16:56:18,737 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-11-25 16:56:18,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3467 conditions, 1855 events. 910/1855 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12743 event pairs, 699 based on Foata normal form. 0/1223 useless extension candidates. Maximal degree in co-relation 3462. Up to 1355 conditions per place. [2022-11-25 16:56:18,750 INFO L137 encePairwiseOnDemand]: 470/475 looper letters, 45 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2022-11-25 16:56:18,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 63 transitions, 244 flow [2022-11-25 16:56:18,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:56:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 16:56:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 659 transitions. [2022-11-25 16:56:18,754 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4624561403508772 [2022-11-25 16:56:18,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 659 transitions. [2022-11-25 16:56:18,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 659 transitions. [2022-11-25 16:56:18,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:56:18,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 659 transitions. [2022-11-25 16:56:18,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.66666666666666) internal successors, (659), 3 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:18,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:18,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 475.0) internal successors, (1900), 4 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:18,765 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 132 flow. Second operand 3 states and 659 transitions. [2022-11-25 16:56:18,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 63 transitions, 244 flow [2022-11-25 16:56:18,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:56:18,769 INFO L231 Difference]: Finished difference. Result has 56 places, 53 transitions, 134 flow [2022-11-25 16:56:18,769 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=56, PETRI_TRANSITIONS=53} [2022-11-25 16:56:18,770 INFO L288 CegarLoopForPetriNet]: 63 programPoint places, -7 predicate places. [2022-11-25 16:56:18,770 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 53 transitions, 134 flow [2022-11-25 16:56:18,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:18,771 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:56:18,772 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 16:56:18,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:56:18,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:56:18,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-11-25 16:56:18,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:18,995 INFO L85 PathProgramCache]: Analyzing trace with hash 26541, now seen corresponding path program 1 times [2022-11-25 16:56:18,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:56:18,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348724526] [2022-11-25 16:56:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:18,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 16:56:18,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:56:18,998 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 16:56:19,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def22ae0-4bf4-4759-9c21-dfdb90a81dd4/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 16:56:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:19,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 16:56:19,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:56:45,905 WARN L233 SmtUtils]: Spent 26.09s on a formula simplification. DAG size of input: 195 DAG size of output: 65 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 16:56:45,906 INFO L321 Elim1Store]: treesize reduction 430, result has 15.7 percent of original size [2022-11-25 16:56:45,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 91 disjoint index pairs (out of 91 index pairs), introduced 15 new quantified variables, introduced 15 case distinctions, treesize of input 741 treesize of output 758 [2022-11-25 16:56:48,669 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 16:56:48,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 729 treesize of output 732 [2022-11-25 16:56:49,961 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 16:56:49,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 31 [2022-11-25 16:56:50,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:50,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:56:57,707 WARN L233 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 119 DAG size of output: 54 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 16:56:57,707 INFO L321 Elim1Store]: treesize reduction 101, result has 40.9 percent of original size [2022-11-25 16:56:57,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 119 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 17 case distinctions, treesize of input 127 treesize of output 162 [2022-11-25 16:56:57,966 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-11-25 16:57:00,416 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 16:57:00,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 31 [2022-11-25 16:57:00,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 16:57:00,564 INFO L217 Elim1Store]: Index analysis took 101 ms