./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 16:25:19,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:25:19,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:25:19,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:25:19,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:25:19,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:25:19,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:25:19,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:25:19,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:25:19,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:25:19,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:25:19,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:25:19,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:25:19,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:25:19,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:25:19,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:25:19,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:25:19,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:25:19,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:25:19,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:25:19,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:25:19,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:25:19,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:25:19,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:25:19,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:25:19,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:25:19,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:25:19,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:25:19,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:25:19,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:25:19,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:25:19,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:25:19,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:25:19,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:25:19,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:25:19,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:25:19,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:25:19,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:25:19,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:25:19,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:25:19,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:25:19,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 16:25:19,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:25:19,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:25:19,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:25:19,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:25:19,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:25:19,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:25:19,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:25:19,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:25:19,407 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:25:19,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:25:19,415 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:25:19,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:25:19,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:25:19,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:25:19,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:25:19,416 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 16:25:19,416 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 16:25:19,416 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 16:25:19,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:25:19,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:25:19,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:25:19,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:25:19,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:25:19,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:25:19,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:25:19,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:25:19,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:25:19,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:25:19,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:25:19,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:25:19,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:25:19,419 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:25:19,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:25:19,419 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:25:19,420 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_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-12-13 16:25:19,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:25:19,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:25:19,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:25:19,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:25:19,641 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:25:19,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-13 16:25:22,276 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:25:22,514 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:25:22,515 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-13 16:25:22,530 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data/d13163ebe/58490057ef7145cc87062a435f5caba5/FLAG7e558313f [2022-12-13 16:25:22,868 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data/d13163ebe/58490057ef7145cc87062a435f5caba5 [2022-12-13 16:25:22,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:25:22,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:25:22,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:25:22,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:25:22,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:25:22,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:25:22" (1/1) ... [2022-12-13 16:25:22,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3cf27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:22, skipping insertion in model container [2022-12-13 16:25:22,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:25:22" (1/1) ... [2022-12-13 16:25:22,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:25:22,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:25:23,326 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,327 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_ff0e33b6-9280-453c-b525-2deae8851c2f/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-13 16:25:23,331 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,334 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,335 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,337 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,340 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,341 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,342 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,344 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:23,344 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,345 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:23,345 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:23,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:25:23,354 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) [2022-12-13 16:25:23,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@741460e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:23, skipping insertion in model container [2022-12-13 16:25:23,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:25:23,355 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 16:25:23,356 INFO L158 Benchmark]: Toolchain (without parser) took 479.86ms. Allocated memory is still 130.0MB. Free memory was 93.9MB in the beginning and 76.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 16:25:23,356 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 101.0MB in the beginning and 100.8MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:25:23,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.73ms. Allocated memory is still 130.0MB. Free memory was 93.6MB in the beginning and 76.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 16:25:23,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory was 101.0MB in the beginning and 100.8MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.73ms. Allocated memory is still 130.0MB. Free memory was 93.6MB in the beginning and 76.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. 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_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 16:25:24,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:25:24,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:25:24,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:25:24,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:25:24,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:25:24,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:25:24,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:25:25,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:25:25,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:25:25,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:25:25,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:25:25,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:25:25,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:25:25,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:25:25,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:25:25,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:25:25,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:25:25,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:25:25,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:25:25,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:25:25,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:25:25,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:25:25,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:25:25,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:25:25,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:25:25,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:25:25,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:25:25,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:25:25,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:25:25,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:25:25,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:25:25,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:25:25,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:25:25,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:25:25,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:25:25,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:25:25,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:25:25,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:25:25,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:25:25,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:25:25,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 16:25:25,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:25:25,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:25:25,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:25:25,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:25:25,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:25:25,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:25:25,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:25:25,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:25:25,062 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:25:25,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:25:25,062 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:25:25,063 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:25:25,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:25:25,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:25:25,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:25:25,063 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 16:25:25,063 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 16:25:25,064 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 16:25:25,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:25:25,064 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:25:25,064 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:25:25,064 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:25:25,065 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:25:25,065 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:25:25,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:25:25,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:25:25,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:25:25,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:25:25,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:25:25,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:25:25,066 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:25:25,066 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:25:25,067 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:25:25,067 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:25:25,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:25:25,067 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:25:25,067 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:25:25,068 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_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-12-13 16:25:25,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:25:25,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:25:25,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:25:25,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:25:25,322 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:25:25,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-13 16:25:27,902 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:25:28,096 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:25:28,097 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-13 16:25:28,108 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data/00077b131/573ab5022fe24a57b83d936ff23e928e/FLAG07a592475 [2022-12-13 16:25:28,119 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/data/00077b131/573ab5022fe24a57b83d936ff23e928e [2022-12-13 16:25:28,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:25:28,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:25:28,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:25:28,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:25:28,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:25:28,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54187250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28, skipping insertion in model container [2022-12-13 16:25:28,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:25:28,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:25:28,558 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,559 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_ff0e33b6-9280-453c-b525-2deae8851c2f/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-13 16:25:28,563 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,566 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,567 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,571 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,574 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,576 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,578 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,580 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:28,580 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,581 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:28,582 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:25:28,596 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 16:25:28,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:25:28,628 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,628 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_ff0e33b6-9280-453c-b525-2deae8851c2f/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-13 16:25:28,629 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,630 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,631 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,632 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,633 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,634 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,634 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,635 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:28,635 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,636 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:28,636 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:25:28,641 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:25:28,677 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,677 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_ff0e33b6-9280-453c-b525-2deae8851c2f/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-13 16:25:28,679 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,680 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,681 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,683 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,690 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,691 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,692 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,693 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:28,693 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,694 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 16:25:28,694 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 16:25:28,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:25:28,743 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:25:28,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28 WrapperNode [2022-12-13 16:25:28,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:25:28,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:25:28,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:25:28,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:25:28,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,789 INFO L138 Inliner]: procedures = 376, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 156 [2022-12-13 16:25:28,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:25:28,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:25:28,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:25:28,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:25:28,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,819 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:25:28,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:25:28,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:25:28,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:25:28,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (1/1) ... [2022-12-13 16:25:28,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:25:28,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:25:28,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:25:28,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:25:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 16:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2022-12-13 16:25:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2022-12-13 16:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2022-12-13 16:25:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2022-12-13 16:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 16:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:25:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 16:25:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 16:25:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 16:25:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:25:28,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:25:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:25:28,874 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:25:28,997 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:25:28,998 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:25:29,405 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:25:29,415 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:25:29,415 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 16:25:29,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:25:29 BoogieIcfgContainer [2022-12-13 16:25:29,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:25:29,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:25:29,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:25:29,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:25:29,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:25:28" (1/3) ... [2022-12-13 16:25:29,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaeb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:25:29, skipping insertion in model container [2022-12-13 16:25:29,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:28" (2/3) ... [2022-12-13 16:25:29,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaeb30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:25:29, skipping insertion in model container [2022-12-13 16:25:29,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:25:29" (3/3) ... [2022-12-13 16:25:29,425 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3-2.i [2022-12-13 16:25:29,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:25:29,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-12-13 16:25:29,444 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:25:29,528 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 16:25:29,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 228 transitions, 478 flow [2022-12-13 16:25:29,690 INFO L130 PetriNetUnfolder]: 39/467 cut-off events. [2022-12-13 16:25:29,690 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 16:25:29,697 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 1979 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. [2022-12-13 16:25:29,697 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 228 transitions, 478 flow [2022-12-13 16:25:29,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 228 transitions, 478 flow [2022-12-13 16:25:29,707 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:25:29,718 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 228 transitions, 478 flow [2022-12-13 16:25:29,720 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 228 transitions, 478 flow [2022-12-13 16:25:29,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 228 transitions, 478 flow [2022-12-13 16:25:29,787 INFO L130 PetriNetUnfolder]: 39/467 cut-off events. [2022-12-13 16:25:29,787 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 16:25:29,789 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 1979 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. [2022-12-13 16:25:29,795 INFO L119 LiptonReduction]: Number of co-enabled transitions 6766 [2022-12-13 16:26:17,585 WARN L233 SmtUtils]: Spent 15.78s on a formula simplification. DAG size of input: 227 DAG size of output: 226 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:26:25,662 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 226 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:26:32,585 WARN L233 SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 212 DAG size of output: 211 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:26:42,033 WARN L233 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 221 DAG size of output: 220 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:26:53,236 WARN L233 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 242 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:26:59,951 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:27:16,083 WARN L233 SmtUtils]: Spent 16.13s on a formula simplification. DAG size of input: 248 DAG size of output: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:27:22,824 WARN L233 SmtUtils]: Spent 6.74s 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) [2022-12-13 16:29:50,421 WARN L233 SmtUtils]: Spent 2.25m on a formula simplification. DAG size of input: 295 DAG size of output: 284 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:30:58,117 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 284 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:32:31,702 WARN L233 SmtUtils]: Spent 1.56m on a formula simplification. DAG size of input: 312 DAG size of output: 300 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:33:16,317 WARN L233 SmtUtils]: Spent 44.61s on a formula simplification that was a NOOP. DAG size: 300 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:33:22,502 WARN L233 SmtUtils]: Spent 6.18s on a formula simplification. DAG size of input: 274 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:33:24,851 INFO L134 LiptonReduction]: Checked pairs total: 19381 [2022-12-13 16:33:24,851 INFO L136 LiptonReduction]: Total number of compositions: 244 [2022-12-13 16:33:24,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:33:24,865 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;@7e031151, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:33:24,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-12-13 16:33:24,866 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 16:33:24,867 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:33:24,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:33:24,867 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:33:24,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-13 16:33:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:33:24,871 INFO L85 PathProgramCache]: Analyzing trace with hash 829, now seen corresponding path program 1 times [2022-12-13 16:33:24,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:33:24,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187928993] [2022-12-13 16:33:24,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:33:24,879 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 [2022-12-13 16:33:24,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:33:24,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:33:24,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:33:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:33:24,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:33:24,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:33:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:33:24,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:33:24,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:33:24,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187928993] [2022-12-13 16:33:24,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187928993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:33:24,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:33:24,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:33:24,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930186420] [2022-12-13 16:33:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:33:24,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:33:24,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:33:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:33:24,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:33:24,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 472 [2022-12-13 16:33:24,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 150 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) [2022-12-13 16:33:24,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:33:24,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 472 [2022-12-13 16:33:25,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:33:25,476 INFO L130 PetriNetUnfolder]: 910/1934 cut-off events. [2022-12-13 16:33:25,476 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-13 16:33:25,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3540 conditions, 1934 events. 910/1934 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 13328 event pairs, 807 based on Foata normal form. 0/1304 useless extension candidates. Maximal degree in co-relation 2885. Up to 1554 conditions per place. [2022-12-13 16:33:25,485 INFO L137 encePairwiseOnDemand]: 464/472 looper letters, 38 selfloop transitions, 0 changer transitions 0/56 dead transitions. [2022-12-13 16:33:25,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 210 flow [2022-12-13 16:33:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:33:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:33:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 464 transitions. [2022-12-13 16:33:25,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4915254237288136 [2022-12-13 16:33:25,496 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 464 transitions. [2022-12-13 16:33:25,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 464 transitions. [2022-12-13 16:33:25,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:33:25,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 464 transitions. [2022-12-13 16:33:25,502 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) [2022-12-13 16:33:25,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 472.0) internal successors, (1416), 3 states have internal predecessors, (1416), 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) [2022-12-13 16:33:25,506 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 472.0) internal successors, (1416), 3 states have internal predecessors, (1416), 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) [2022-12-13 16:33:25,508 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 150 flow. Second operand 2 states and 464 transitions. [2022-12-13 16:33:25,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 210 flow [2022-12-13 16:33:25,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:33:25,512 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 134 flow [2022-12-13 16:33:25,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2022-12-13 16:33:25,516 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -7 predicate places. [2022-12-13 16:33:25,516 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 134 flow [2022-12-13 16:33:25,517 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) [2022-12-13 16:33:25,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:33:25,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 16:33:25,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:33:25,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:33:25,718 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)] === [2022-12-13 16:33:25,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:33:25,719 INFO L85 PathProgramCache]: Analyzing trace with hash 26418, now seen corresponding path program 1 times [2022-12-13 16:33:25,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:33:25,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145057547] [2022-12-13 16:33:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:33:25,721 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 [2022-12-13 16:33:25,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:33:25,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:33:25,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:33:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:33:25,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 16:33:25,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:33:37,076 WARN L233 SmtUtils]: Spent 10.48s 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) [2022-12-13 16:33:37,077 INFO L321 Elim1Store]: treesize reduction 434, result has 14.9 percent of original size [2022-12-13 16:33:37,078 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 749 treesize of output 762 [2022-12-13 16:33:37,881 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-13 16:33:37,881 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 737 treesize of output 736 [2022-12-13 16:33:38,580 INFO L321 Elim1Store]: treesize reduction 670, result has 24.5 percent of original size [2022-12-13 16:33:38,580 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 [2022-12-13 16:33:38,600 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-12-13 16:33:38,857 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 16:33:38,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 31 [2022-12-13 16:33:39,474 INFO L321 Elim1Store]: treesize reduction 670, result has 24.5 percent of original size [2022-12-13 16:33:39,474 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 [2022-12-13 16:33:39,492 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-12-13 16:33:39,748 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 16:33:39,748 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 [2022-12-13 16:33:39,770 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-12-13 16:33:39,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:39,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:33:40,068 INFO L321 Elim1Store]: treesize reduction 264, result has 32.7 percent of original size [2022-12-13 16:33:40,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 137 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 17 case distinctions, treesize of input 120 treesize of output 213 [2022-12-13 16:33:40,121 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-12-13 16:33:40,136 WARN L718 sPolynomialRelations]: Constructing 65536(two to the power of 16 dual juncts. [2022-12-13 16:33:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:33:40,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:33:40,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:33:40,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145057547] [2022-12-13 16:33:40,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145057547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:33:40,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:33:40,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:33:40,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318526176] [2022-12-13 16:33:40,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:33:40,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:33:40,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:33:40,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:33:40,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:33:42,585 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 472 [2022-12-13 16:33:42,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 134 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) [2022-12-13 16:33:42,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:33:42,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 472 [2022-12-13 16:33:42,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:33:43,199 INFO L130 PetriNetUnfolder]: 910/1890 cut-off events. [2022-12-13 16:33:43,199 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-13 16:33:43,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3497 conditions, 1890 events. 910/1890 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 12939 event pairs, 699 based on Foata normal form. 0/1271 useless extension candidates. Maximal degree in co-relation 3492. Up to 1355 conditions per place. [2022-12-13 16:33:43,206 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 45 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2022-12-13 16:33:43,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 246 flow [2022-12-13 16:33:43,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:33:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:33:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 659 transitions. [2022-12-13 16:33:43,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4653954802259887 [2022-12-13 16:33:43,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 659 transitions. [2022-12-13 16:33:43,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 659 transitions. [2022-12-13 16:33:43,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:33:43,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 659 transitions. [2022-12-13 16:33:43,213 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) [2022-12-13 16:33:43,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 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) [2022-12-13 16:33:43,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 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) [2022-12-13 16:33:43,216 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 134 flow. Second operand 3 states and 659 transitions. [2022-12-13 16:33:43,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 246 flow [2022-12-13 16:33:43,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:33:43,218 INFO L231 Difference]: Finished difference. Result has 57 places, 54 transitions, 136 flow [2022-12-13 16:33:43,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2022-12-13 16:33:43,219 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -7 predicate places. [2022-12-13 16:33:43,219 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 136 flow [2022-12-13 16:33:43,219 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) [2022-12-13 16:33:43,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:33:43,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 16:33:43,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 16:33:43,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:33:43,422 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)] === [2022-12-13 16:33:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:33:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash 26419, now seen corresponding path program 1 times [2022-12-13 16:33:43,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:33:43,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020560846] [2022-12-13 16:33:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:33:43,427 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 [2022-12-13 16:33:43,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:33:43,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:33:43,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:33:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:33:43,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 16:33:43,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:33:47,514 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 16:33:47,514 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 749 treesize of output 752 [2022-12-13 16:34:05,331 WARN L233 SmtUtils]: Spent 17.71s 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) [2022-12-13 16:34:05,332 INFO L321 Elim1Store]: treesize reduction 430, result has 15.7 percent of original size [2022-12-13 16:34:05,332 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 737 treesize of output 754 [2022-12-13 16:34:06,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 78 [2022-12-13 16:34:06,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-12-13 16:34:06,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2022-12-13 16:34:06,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:06,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:12,754 WARN L233 SmtUtils]: Spent 6.34s 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) [2022-12-13 16:34:12,755 INFO L321 Elim1Store]: treesize reduction 101, result has 40.9 percent of original size [2022-12-13 16:34:12,755 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 [2022-12-13 16:34:12,765 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:14,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:14,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:21,766 WARN L233 SmtUtils]: Spent 6.78s 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) [2022-12-13 16:34:21,767 INFO L321 Elim1Store]: treesize reduction 101, result has 40.9 percent of original size [2022-12-13 16:34:21,768 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 [2022-12-13 16:34:21,838 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:23,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:23,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:23,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:23,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 16:34:24,302 INFO L321 Elim1Store]: treesize reduction 358, result has 0.3 percent of original size [2022-12-13 16:34:24,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 12 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 38 case distinctions, treesize of input 463 treesize of output 381 [2022-12-13 16:34:24,563 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:26,136 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:27,603 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:27,828 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:28,011 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:28,231 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:33,443 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 471 DAG size of output: 78 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-13 16:34:33,444 INFO L321 Elim1Store]: treesize reduction 1630, result has 5.8 percent of original size [2022-12-13 16:34:33,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 16 select indices, 16 select index equivalence classes, 91 disjoint index pairs (out of 120 index pairs), introduced 18 new quantified variables, introduced 63 case distinctions, treesize of input 363 treesize of output 418 [2022-12-13 16:34:34,105 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:37,103 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:40,488 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:43,634 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:46,334 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:47,731 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:49,550 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:50,081 INFO L321 Elim1Store]: treesize reduction 323, result has 29.9 percent of original size [2022-12-13 16:34:50,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 28 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 27 case distinctions, treesize of input 88 treesize of output 182 [2022-12-13 16:34:50,316 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:50,984 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:52,003 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:52,149 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:52,434 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:52,678 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:52,825 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:53,073 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:54,206 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:54,586 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:34:54,776 WARN L718 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2022-12-13 16:35:31,231 WARN L233 SmtUtils]: Spent 36.15s on a formula simplification. DAG size of input: 240 DAG size of output: 181 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 16:35:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:35:31,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:35:31,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:35:31,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020560846] [2022-12-13 16:35:31,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020560846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:35:31,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:35:31,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:35:31,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948650258] [2022-12-13 16:35:31,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:35:31,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:35:31,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:35:31,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:35:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:35:33,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:35:38,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 16:35:38,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 472 [2022-12-13 16:35:38,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2022-12-13 16:35:38,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:35:38,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 472 [2022-12-13 16:35:38,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:35:40,985 INFO L130 PetriNetUnfolder]: 910/1906 cut-off events. [2022-12-13 16:35:40,985 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-12-13 16:35:40,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3595 conditions, 1906 events. 910/1906 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 13034 event pairs, 807 based on Foata normal form. 0/1330 useless extension candidates. Maximal degree in co-relation 3589. Up to 1553 conditions per place. [2022-12-13 16:35:40,991 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 37 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2022-12-13 16:35:40,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 208 flow [2022-12-13 16:35:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:35:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:35:40,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2022-12-13 16:35:40,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4519774011299435 [2022-12-13 16:35:40,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2022-12-13 16:35:40,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2022-12-13 16:35:40,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:35:40,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2022-12-13 16:35:40,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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) [2022-12-13 16:35:41,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 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) [2022-12-13 16:35:41,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 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) [2022-12-13 16:35:41,002 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 136 flow. Second operand 3 states and 640 transitions. [2022-12-13 16:35:41,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 208 flow [2022-12-13 16:35:41,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:35:41,003 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 128 flow [2022-12-13 16:35:41,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2022-12-13 16:35:41,009 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -9 predicate places. [2022-12-13 16:35:41,009 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 128 flow [2022-12-13 16:35:41,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2022-12-13 16:35:41,010 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:35:41,010 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 16:35:41,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 16:35:41,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:35:41,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-13 16:35:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:35:41,213 INFO L85 PathProgramCache]: Analyzing trace with hash 26676, now seen corresponding path program 1 times [2022-12-13 16:35:41,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:35:41,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402284779] [2022-12-13 16:35:41,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:35:41,214 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 [2022-12-13 16:35:41,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:35:41,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:35:41,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 (5)] Waiting until timeout for monitored process [2022-12-13 16:35:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:35:41,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 16:35:41,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:35:41,386 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 16:35:41,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 19 treesize of output 22 [2022-12-13 16:35:41,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:35:41,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:35:41,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:35:41,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402284779] [2022-12-13 16:35:41,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402284779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:35:41,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:35:41,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:35:41,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359490120] [2022-12-13 16:35:41,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:35:41,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:35:41,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:35:41,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:35:41,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:35:41,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 472 [2022-12-13 16:35:41,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2022-12-13 16:35:41,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:35:41,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 472 [2022-12-13 16:35:41,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:35:42,000 INFO L130 PetriNetUnfolder]: 848/1748 cut-off events. [2022-12-13 16:35:42,001 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-13 16:35:42,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3250 conditions, 1748 events. 848/1748 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 11761 event pairs, 642 based on Foata normal form. 0/1184 useless extension candidates. Maximal degree in co-relation 3244. Up to 1248 conditions per place. [2022-12-13 16:35:42,006 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 43 selfloop transitions, 3 changer transitions 0/60 dead transitions. [2022-12-13 16:35:42,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 60 transitions, 236 flow [2022-12-13 16:35:42,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:35:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:35:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2022-12-13 16:35:42,008 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4576271186440678 [2022-12-13 16:35:42,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 648 transitions. [2022-12-13 16:35:42,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 648 transitions. [2022-12-13 16:35:42,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:35:42,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 648 transitions. [2022-12-13 16:35:42,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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) [2022-12-13 16:35:42,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 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) [2022-12-13 16:35:42,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 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) [2022-12-13 16:35:42,013 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 128 flow. Second operand 3 states and 648 transitions. [2022-12-13 16:35:42,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 60 transitions, 236 flow [2022-12-13 16:35:42,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:35:42,015 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 129 flow [2022-12-13 16:35:42,015 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2022-12-13 16:35:42,015 INFO L288 CegarLoopForPetriNet]: 64 programPoint places, -10 predicate places. [2022-12-13 16:35:42,016 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 129 flow [2022-12-13 16:35:42,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 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) [2022-12-13 16:35:42,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:35:42,016 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 16:35:42,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 (5)] Ended with exit code 0 [2022-12-13 16:35:42,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:35:42,218 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-13 16:35:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:35:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash 26675, now seen corresponding path program 1 times [2022-12-13 16:35:42,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:35:42,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893345197] [2022-12-13 16:35:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:35:42,221 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 [2022-12-13 16:35:42,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:35:42,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:35:42,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 (6)] Waiting until timeout for monitored process [2022-12-13 16:35:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:35:42,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:35:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:35:42,647 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 16:35:42,647 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:35:42,648 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2022-12-13 16:35:42,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 29 remaining) [2022-12-13 16:35:42,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2022-12-13 16:35:42,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2022-12-13 16:35:42,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2022-12-13 16:35:42,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2022-12-13 16:35:42,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2022-12-13 16:35:42,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2022-12-13 16:35:42,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (4 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 29 remaining) [2022-12-13 16:35:42,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2022-12-13 16:35:42,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 (6)] Ended with exit code 0 [2022-12-13 16:35:42,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:35:42,853 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 16:35:42,860 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:35:42,860 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:35:42,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:35:42 BasicIcfg [2022-12-13 16:35:42,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:35:42,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:35:42,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:35:42,875 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:35:42,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:25:29" (3/4) ... [2022-12-13 16:35:42,877 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 16:35:42,901 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:35:42,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:35:42,902 INFO L158 Benchmark]: Toolchain (without parser) took 614780.09ms. Allocated memory was 60.8MB in the beginning and 123.7MB in the end (delta: 62.9MB). Free memory was 37.5MB in the beginning and 73.2MB in the end (delta: -35.7MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-12-13 16:35:42,902 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:35:42,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.90ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.3MB in the beginning and 30.7MB in the end (delta: 6.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-12-13 16:35:42,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.73ms. Allocated memory is still 73.4MB. Free memory was 30.7MB in the beginning and 47.8MB in the end (delta: -17.1MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-12-13 16:35:42,902 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 45.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:35:42,903 INFO L158 Benchmark]: RCFGBuilder took 594.64ms. Allocated memory is still 73.4MB. Free memory was 45.3MB in the beginning and 35.4MB in the end (delta: 10.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 16:35:42,903 INFO L158 Benchmark]: TraceAbstraction took 613454.84ms. Allocated memory was 73.4MB in the beginning and 123.7MB in the end (delta: 50.3MB). Free memory was 35.0MB in the beginning and 75.3MB in the end (delta: -40.3MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2022-12-13 16:35:42,903 INFO L158 Benchmark]: Witness Printer took 26.39ms. Allocated memory is still 123.7MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:35:42,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.90ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.3MB in the beginning and 30.7MB in the end (delta: 6.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.73ms. Allocated memory is still 73.4MB. Free memory was 30.7MB in the beginning and 47.8MB in the end (delta: -17.1MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 45.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.64ms. Allocated memory is still 73.4MB. Free memory was 45.3MB in the beginning and 35.4MB in the end (delta: 10.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 613454.84ms. Allocated memory was 73.4MB in the beginning and 123.7MB in the end (delta: 50.3MB). Free memory was 35.0MB in the beginning and 75.3MB in the end (delta: -40.3MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * Witness Printer took 26.39ms. Allocated memory is still 123.7MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 475.1s, 215 PlacesBefore, 64 PlacesAfterwards, 228 TransitionsBefore, 64 TransitionsAfterwards, 6766 CoEnabledTransitionPairs, 9 FixpointIterations, 94 TrivialSequentialCompositions, 101 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 25 ConcurrentYvCompositions, 13 ChoiceCompositions, 244 TotalNumberOfCompositions, 19381 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7680, independent: 7406, independent conditional: 0, independent unconditional: 7406, dependent: 274, dependent conditional: 0, dependent unconditional: 274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3394, independent: 3366, independent conditional: 0, independent unconditional: 3366, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7680, independent: 4040, independent conditional: 0, independent unconditional: 4040, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 3394, unknown conditional: 0, unknown unconditional: 3394] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1236] static int iTThreads = 2; [L1237] static int iRThreads = 1; [L1238] static int data1Value = 0; [L1239] static int data2Value = 0; [L1240] pthread_mutex_t *data1Lock; [L1241] pthread_mutex_t *data2Lock; [L1274] int i,err; [L1275] COND TRUE argc != 1 [L1276] COND FALSE !(argc != 3) [L1284] data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1285] data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1286] EXPR err = pthread_mutex_init(data1Lock, ((void *)0)) [L1286] COND FALSE !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1290] EXPR err = pthread_mutex_init(data2Lock, ((void *)0)) [L1290] COND FALSE !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1294] EXPR \read(iTThreads) [L1294] pthread_t tPool[iTThreads]; [L1295] EXPR \read(iRThreads) [L1295] pthread_t rPool[iRThreads]; [L1296] i = 0 VAL [\old(argc)=3, \read(iRThreads)=1, \read(iTThreads)=1073741824, argc=3, argv={17:16}, argv={17:16}, data1Lock={30:0}, data1Value=0, data2Lock={15:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, rPool={62:0}, tPool={63:0}] [L1296] EXPR \read(iTThreads) [L1296] COND TRUE i < iTThreads - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1273]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1303]: 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: 1297]: 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: 1268]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 245 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 613.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 475.3s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 518 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 12.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 458 IncrementalHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1 mSDtfsCounter, 458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 122.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 3 ConstructedInterpolants, 2 QuantifiedInterpolants, 1228 SizeOfPredicates, 58 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2022-12-13 16:35:42,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0e33b6-9280-453c-b525-2deae8851c2f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)