./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- 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 19:28:38,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:28:38,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:28:38,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:28:38,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:28:38,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:28:38,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:28:38,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:28:38,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:28:38,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:28:38,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:28:38,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:28:38,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:28:38,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:28:38,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:28:38,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:28:38,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:28:38,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:28:38,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:28:38,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:28:38,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:28:38,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:28:38,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:28:38,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:28:38,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:28:38,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:28:38,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:28:38,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:28:38,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:28:38,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:28:38,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:28:38,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:28:38,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:28:38,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:28:38,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:28:38,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:28:38,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:28:38,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:28:38,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:28:38,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:28:38,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:28:38,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 19:28:38,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:28:38,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:28:38,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:28:38,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:28:38,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:28:38,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:28:38,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:28:38,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:28:38,713 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:28:38,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:28:38,713 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:28:38,713 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:28:38,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:28:38,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:28:38,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:28:38,714 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:28:38,714 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:28:38,714 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:28:38,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:28:38,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:28:38,715 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:28:38,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:28:38,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:28:38,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:28:38,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:28:38,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:28:38,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:28:38,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:28:38,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:28:38,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:28:38,717 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:28:38,717 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:28:38,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:28:38,717 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:28:38,717 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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2022-12-13 19:28:38,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:28:38,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:28:38,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:28:38,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:28:38,937 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:28:38,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-12-13 19:28:41,429 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:28:41,640 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:28:41,641 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-12-13 19:28:41,651 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data/9884b408e/89f61f0b833e440687c006fa44229e7c/FLAGdfc8eea49 [2022-12-13 19:28:42,003 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data/9884b408e/89f61f0b833e440687c006fa44229e7c [2022-12-13 19:28:42,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:28:42,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:28:42,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:42,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:28:42,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:28:42,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:42" (1/1) ... [2022-12-13 19:28:42,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333f9427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:42, skipping insertion in model container [2022-12-13 19:28:42,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:42" (1/1) ... [2022-12-13 19:28:42,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:28:42,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:28:42,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:42,337 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 19:28:42,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@19efd957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:42, skipping insertion in model container [2022-12-13 19:28:42,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:42,338 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 19:28:42,339 INFO L158 Benchmark]: Toolchain (without parser) took 332.01ms. Allocated memory is still 119.5MB. Free memory was 83.2MB in the beginning and 69.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:28:42,339 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:28:42,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.31ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 69.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:28:42,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.31ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 69.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 922]: 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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- 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 19:28:43,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:28:43,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:28:43,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:28:43,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:28:43,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:28:43,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:28:43,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:28:43,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:28:43,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:28:43,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:28:43,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:28:43,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:28:43,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:28:43,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:28:43,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:28:43,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:28:43,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:28:43,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:28:43,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:28:43,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:28:43,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:28:43,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:28:43,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:28:43,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:28:43,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:28:43,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:28:43,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:28:43,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:28:43,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:28:43,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:28:43,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:28:43,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:28:43,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:28:43,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:28:43,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:28:43,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:28:43,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:28:43,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:28:43,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:28:43,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:28:43,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 19:28:43,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:28:43,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:28:43,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:28:43,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:28:43,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:28:43,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:28:43,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:28:43,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:28:43,855 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:28:43,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:28:43,856 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:28:43,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:28:43,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:28:43,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:28:43,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:28:43,857 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:28:43,857 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:28:43,857 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:28:43,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:28:43,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:28:43,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:28:43,857 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:28:43,858 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:28:43,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:28:43,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:28:43,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:28:43,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:28:43,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:28:43,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:28:43,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:28:43,859 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:28:43,859 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:28:43,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:28:43,859 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:28:43,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:28:43,860 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:28:43,860 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:28:43,860 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_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2022-12-13 19:28:44,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:28:44,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:28:44,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:28:44,108 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:28:44,108 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:28:44,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-12-13 19:28:46,683 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:28:46,896 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:28:46,897 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-12-13 19:28:46,909 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data/08e290710/50b771f7e4a34a77abc6127b71716e34/FLAG585f879dc [2022-12-13 19:28:46,924 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/data/08e290710/50b771f7e4a34a77abc6127b71716e34 [2022-12-13 19:28:46,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:28:46,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:28:46,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:46,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:28:46,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:28:46,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:46" (1/1) ... [2022-12-13 19:28:46,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154379dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:46, skipping insertion in model container [2022-12-13 19:28:46,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:46" (1/1) ... [2022-12-13 19:28:46,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:28:46,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:28:47,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:47,398 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 19:28:47,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:28:47,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:47,443 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:28:47,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:47,530 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:28:47,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47 WrapperNode [2022-12-13 19:28:47,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:47,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:28:47,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:28:47,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:28:47,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,569 INFO L138 Inliner]: procedures = 264, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-12-13 19:28:47,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:28:47,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:28:47,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:28:47,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:28:47,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:28:47,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:28:47,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:28:47,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:28:47,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (1/1) ... [2022-12-13 19:28:47,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:28:47,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:28:47,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:28:47,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:28:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 19:28:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:28:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:28:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 19:28:47,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 19:28:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 19:28:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:28:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 19:28:47,664 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 19:28:47,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:28:47,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:28:47,665 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 19:28:47,768 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:28:47,769 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:28:48,015 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:28:48,020 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:28:48,020 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:28:48,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:48 BoogieIcfgContainer [2022-12-13 19:28:48,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:28:48,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:28:48,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:28:48,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:28:48,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:28:46" (1/3) ... [2022-12-13 19:28:48,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507e0256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:28:48, skipping insertion in model container [2022-12-13 19:28:48,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:47" (2/3) ... [2022-12-13 19:28:48,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507e0256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:28:48, skipping insertion in model container [2022-12-13 19:28:48,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:48" (3/3) ... [2022-12-13 19:28:48,028 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2022-12-13 19:28:48,041 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:28:48,041 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-12-13 19:28:48,041 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:28:48,094 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 19:28:48,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 198 flow [2022-12-13 19:28:48,152 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-12-13 19:28:48,152 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 19:28:48,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 94 events. 1/94 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2022-12-13 19:28:48,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 95 transitions, 198 flow [2022-12-13 19:28:48,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 89 transitions, 184 flow [2022-12-13 19:28:48,161 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:28:48,169 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 89 transitions, 184 flow [2022-12-13 19:28:48,172 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 89 transitions, 184 flow [2022-12-13 19:28:48,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 184 flow [2022-12-13 19:28:48,188 INFO L130 PetriNetUnfolder]: 1/89 cut-off events. [2022-12-13 19:28:48,188 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 19:28:48,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 89 events. 1/89 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 105 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2022-12-13 19:28:48,189 INFO L119 LiptonReduction]: Number of co-enabled transitions 544 [2022-12-13 19:29:01,541 INFO L134 LiptonReduction]: Checked pairs total: 2244 [2022-12-13 19:29:01,541 INFO L136 LiptonReduction]: Total number of compositions: 115 [2022-12-13 19:29:01,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:29:01,558 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;@100d4e1a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:29:01,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-13 19:29:01,559 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 19:29:01,560 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:29:01,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:29:01,560 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:29:01,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-12-13 19:29:01,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:29:01,564 INFO L85 PathProgramCache]: Analyzing trace with hash 350, now seen corresponding path program 1 times [2022-12-13 19:29:01,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:29:01,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222316636] [2022-12-13 19:29:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:29:01,572 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 19:29:01,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:29:01,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:01,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:29:01,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 19:29:01,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:29:01,614 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 19:29:01,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:29:01,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:29:01,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222316636] [2022-12-13 19:29:01,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222316636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:29:01,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:29:01,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:29:01,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859707826] [2022-12-13 19:29:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:29:01,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:29:01,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:29:01,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:29:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:29:01,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 210 [2022-12-13 19:29:01,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 62 flow. Second operand has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 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 19:29:01,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:29:01,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 210 [2022-12-13 19:29:01,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:29:01,707 INFO L130 PetriNetUnfolder]: 35/98 cut-off events. [2022-12-13 19:29:01,707 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 19:29:01,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 98 events. 35/98 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 368 event pairs, 35 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 176. Up to 87 conditions per place. [2022-12-13 19:29:01,709 INFO L137 encePairwiseOnDemand]: 201/210 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-12-13 19:29:01,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 76 flow [2022-12-13 19:29:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:29:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:29:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 211 transitions. [2022-12-13 19:29:01,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5023809523809524 [2022-12-13 19:29:01,719 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 211 transitions. [2022-12-13 19:29:01,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 211 transitions. [2022-12-13 19:29:01,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:29:01,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 211 transitions. [2022-12-13 19:29:01,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 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 19:29:01,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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 19:29:01,729 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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 19:29:01,731 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 62 flow. Second operand 2 states and 211 transitions. [2022-12-13 19:29:01,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 76 flow [2022-12-13 19:29:01,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:29:01,734 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 40 flow [2022-12-13 19:29:01,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2022-12-13 19:29:01,739 INFO L288 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2022-12-13 19:29:01,739 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 40 flow [2022-12-13 19:29:01,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 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 19:29:01,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:29:01,740 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 19:29:01,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:01,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:01,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-12-13 19:29:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:29:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 347957, now seen corresponding path program 1 times [2022-12-13 19:29:01,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:29:01,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978723032] [2022-12-13 19:29:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:29:01,948 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 19:29:01,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:29:01,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:01,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:29:02,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 19:29:02,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:29:02,117 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 19:29:02,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-13 19:29:02,142 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 19:29:02,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:29:02,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:29:02,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978723032] [2022-12-13 19:29:02,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978723032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:29:02,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:29:02,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:29:02,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992442663] [2022-12-13 19:29:02,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:29:02,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:29:02,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:29:02,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:29:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:29:02,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 210 [2022-12-13 19:29:02,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 40 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 19:29:02,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:29:02,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 210 [2022-12-13 19:29:02,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:29:02,331 INFO L130 PetriNetUnfolder]: 24/72 cut-off events. [2022-12-13 19:29:02,331 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 19:29:02,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 72 events. 24/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 235 event pairs, 24 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 135. Up to 60 conditions per place. [2022-12-13 19:29:02,332 INFO L137 encePairwiseOnDemand]: 205/210 looper letters, 11 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2022-12-13 19:29:02,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 64 flow [2022-12-13 19:29:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:29:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:29:02,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 446 transitions. [2022-12-13 19:29:02,337 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4247619047619048 [2022-12-13 19:29:02,337 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 446 transitions. [2022-12-13 19:29:02,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 446 transitions. [2022-12-13 19:29:02,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:29:02,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 446 transitions. [2022-12-13 19:29:02,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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 19:29:02,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 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 19:29:02,341 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 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 19:29:02,342 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 40 flow. Second operand 5 states and 446 transitions. [2022-12-13 19:29:02,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 64 flow [2022-12-13 19:29:02,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:29:02,342 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 42 flow [2022-12-13 19:29:02,342 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=17} [2022-12-13 19:29:02,343 INFO L288 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2022-12-13 19:29:02,343 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 42 flow [2022-12-13 19:29:02,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 19:29:02,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:29:02,344 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 19:29:02,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:02,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:02,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-12-13 19:29:02,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:29:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash 347958, now seen corresponding path program 1 times [2022-12-13 19:29:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:29:02,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493462668] [2022-12-13 19:29:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:29:02,550 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 19:29:02,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:29:02,553 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:02,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:29:02,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:29:02,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:29:02,687 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-13 19:29:02,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-12-13 19:29:02,700 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 19:29:02,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:29:02,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:29:02,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493462668] [2022-12-13 19:29:02,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493462668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:29:02,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:29:02,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:29:02,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70400371] [2022-12-13 19:29:02,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:29:02,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:29:02,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:29:02,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:29:02,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:29:02,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 210 [2022-12-13 19:29:02,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 19:29:02,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:29:02,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 210 [2022-12-13 19:29:02,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:29:02,883 INFO L130 PetriNetUnfolder]: 18/54 cut-off events. [2022-12-13 19:29:02,883 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 19:29:02,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 54 events. 18/54 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 147 event pairs, 18 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 107. Up to 47 conditions per place. [2022-12-13 19:29:02,884 INFO L137 encePairwiseOnDemand]: 205/210 looper letters, 10 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2022-12-13 19:29:02,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 15 transitions, 64 flow [2022-12-13 19:29:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:29:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:29:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2022-12-13 19:29:02,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39404761904761904 [2022-12-13 19:29:02,886 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2022-12-13 19:29:02,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2022-12-13 19:29:02,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:29:02,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2022-12-13 19:29:02,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 19:29:02,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 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 19:29:02,889 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 210.0) internal successors, (1050), 5 states have internal predecessors, (1050), 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 19:29:02,889 INFO L175 Difference]: Start difference. First operand has 24 places, 17 transitions, 42 flow. Second operand 4 states and 331 transitions. [2022-12-13 19:29:02,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 15 transitions, 64 flow [2022-12-13 19:29:02,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 59 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:29:02,889 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 39 flow [2022-12-13 19:29:02,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=39, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2022-12-13 19:29:02,890 INFO L288 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2022-12-13 19:29:02,890 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 39 flow [2022-12-13 19:29:02,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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 19:29:02,890 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:29:02,890 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 19:29:02,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,091 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-12-13 19:29:03,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:29:03,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1776493917, now seen corresponding path program 1 times [2022-12-13 19:29:03,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:29:03,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382001855] [2022-12-13 19:29:03,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:29:03,092 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 19:29:03,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:29:03,093 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:29:03,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:29:03,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:29:03,177 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 19:29:03,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-13 19:29:03,202 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 19:29:03,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:29:03,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:29:03,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382001855] [2022-12-13 19:29:03,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382001855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:29:03,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:29:03,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:29:03,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697950017] [2022-12-13 19:29:03,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:29:03,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:29:03,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:29:03,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:29:03,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:29:03,285 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 210 [2022-12-13 19:29:03,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 19:29:03,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:29:03,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 210 [2022-12-13 19:29:03,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:29:03,331 INFO L130 PetriNetUnfolder]: 15/46 cut-off events. [2022-12-13 19:29:03,331 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:29:03,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 46 events. 15/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 110 event pairs, 15 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 93. Up to 41 conditions per place. [2022-12-13 19:29:03,332 INFO L137 encePairwiseOnDemand]: 207/210 looper letters, 10 selfloop transitions, 2 changer transitions 0/14 dead transitions. [2022-12-13 19:29:03,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 61 flow [2022-12-13 19:29:03,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:29:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:29:03,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2022-12-13 19:29:03,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40634920634920635 [2022-12-13 19:29:03,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2022-12-13 19:29:03,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2022-12-13 19:29:03,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:29:03,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2022-12-13 19:29:03,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 19:29:03,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:03,337 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:03,338 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 39 flow. Second operand 3 states and 256 transitions. [2022-12-13 19:29:03,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 61 flow [2022-12-13 19:29:03,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 55 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:29:03,338 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 35 flow [2022-12-13 19:29:03,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=35, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2022-12-13 19:29:03,339 INFO L288 CegarLoopForPetriNet]: 31 programPoint places, -11 predicate places. [2022-12-13 19:29:03,339 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 35 flow [2022-12-13 19:29:03,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 19:29:03,340 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:29:03,340 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 19:29:03,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-12-13 19:29:03,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:29:03,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1776493918, now seen corresponding path program 1 times [2022-12-13 19:29:03,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:29:03,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377133373] [2022-12-13 19:29:03,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:29:03,544 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 19:29:03,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:29:03,546 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:29:03,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:29:03,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:29:03,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:29:03,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-12-13 19:29:03,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-13 19:29:03,728 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 19:29:03,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:29:03,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:29:03,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377133373] [2022-12-13 19:29:03,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377133373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:29:03,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:29:03,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:29:03,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738161863] [2022-12-13 19:29:03,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:29:03,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:29:03,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:29:03,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:29:03,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:29:03,805 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 210 [2022-12-13 19:29:03,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 19:29:03,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:29:03,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 210 [2022-12-13 19:29:03,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:29:03,843 INFO L130 PetriNetUnfolder]: 9/36 cut-off events. [2022-12-13 19:29:03,843 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 19:29:03,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 36 events. 9/36 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 75 event pairs, 9 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 68. Up to 27 conditions per place. [2022-12-13 19:29:03,843 INFO L137 encePairwiseOnDemand]: 207/210 looper letters, 8 selfloop transitions, 2 changer transitions 0/13 dead transitions. [2022-12-13 19:29:03,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 53 flow [2022-12-13 19:29:03,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:29:03,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:29:03,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2022-12-13 19:29:03,845 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43174603174603177 [2022-12-13 19:29:03,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2022-12-13 19:29:03,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2022-12-13 19:29:03,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:29:03,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2022-12-13 19:29:03,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 19:29:03,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:03,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:03,847 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 35 flow. Second operand 3 states and 272 transitions. [2022-12-13 19:29:03,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 53 flow [2022-12-13 19:29:03,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 49 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:29:03,847 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 33 flow [2022-12-13 19:29:03,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2022-12-13 19:29:03,848 INFO L288 CegarLoopForPetriNet]: 31 programPoint places, -12 predicate places. [2022-12-13 19:29:03,848 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 33 flow [2022-12-13 19:29:03,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 19:29:03,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:29:03,848 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:29:03,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:04,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:04,050 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-12-13 19:29:04,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:29:04,052 INFO L85 PathProgramCache]: Analyzing trace with hash -79594689, now seen corresponding path program 1 times [2022-12-13 19:29:04,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:29:04,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575033062] [2022-12-13 19:29:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:29:04,056 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 19:29:04,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:29:04,059 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:04,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 (7)] Waiting until timeout for monitored process [2022-12-13 19:29:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:29:04,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:29:04,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:29:04,195 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-12-13 19:29:04,205 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 19:29:04,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:29:04,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:29:04,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575033062] [2022-12-13 19:29:04,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575033062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:29:04,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:29:04,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:29:04,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528923479] [2022-12-13 19:29:04,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:29:04,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:29:04,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:29:04,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:29:04,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:29:04,229 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 210 [2022-12-13 19:29:04,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 19:29:04,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:29:04,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 210 [2022-12-13 19:29:04,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:29:04,266 INFO L130 PetriNetUnfolder]: 1/22 cut-off events. [2022-12-13 19:29:04,267 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 19:29:04,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 22 events. 1/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 1 based on Foata normal form. 4/26 useless extension candidates. Maximal degree in co-relation 42. Up to 9 conditions per place. [2022-12-13 19:29:04,267 INFO L137 encePairwiseOnDemand]: 206/210 looper letters, 6 selfloop transitions, 4 changer transitions 0/13 dead transitions. [2022-12-13 19:29:04,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 53 flow [2022-12-13 19:29:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:29:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:29:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2022-12-13 19:29:04,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4380952380952381 [2022-12-13 19:29:04,268 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 276 transitions. [2022-12-13 19:29:04,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 276 transitions. [2022-12-13 19:29:04,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:29:04,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 276 transitions. [2022-12-13 19:29:04,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 19:29:04,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:04,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:04,271 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 33 flow. Second operand 3 states and 276 transitions. [2022-12-13 19:29:04,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 53 flow [2022-12-13 19:29:04,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 49 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:29:04,271 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 37 flow [2022-12-13 19:29:04,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2022-12-13 19:29:04,272 INFO L288 CegarLoopForPetriNet]: 31 programPoint places, -12 predicate places. [2022-12-13 19:29:04,272 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 37 flow [2022-12-13 19:29:04,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 19:29:04,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:29:04,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:29:04,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 (7)] Ended with exit code 0 [2022-12-13 19:29:04,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:04,474 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-12-13 19:29:04,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:29:04,475 INFO L85 PathProgramCache]: Analyzing trace with hash 256440747, now seen corresponding path program 2 times [2022-12-13 19:29:04,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:29:04,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361503305] [2022-12-13 19:29:04,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:29:04,478 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 19:29:04,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:29:04,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:04,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 (8)] Waiting until timeout for monitored process [2022-12-13 19:29:04,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:29:04,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:29:04,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 19:29:04,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:29:04,769 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 19:29:04,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:29:04,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:29:04,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361503305] [2022-12-13 19:29:04,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361503305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:29:04,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:29:04,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:29:04,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383106540] [2022-12-13 19:29:04,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:29:04,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:29:04,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:29:04,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:29:04,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:29:04,955 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 210 [2022-12-13 19:29:04,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 19:29:04,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:29:04,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 210 [2022-12-13 19:29:04,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:29:04,983 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2022-12-13 19:29:04,983 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:29:04,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 20 events. 1/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 1 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 44. Up to 15 conditions per place. [2022-12-13 19:29:04,983 INFO L137 encePairwiseOnDemand]: 208/210 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2022-12-13 19:29:04,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 52 flow [2022-12-13 19:29:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:29:04,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:29:04,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2022-12-13 19:29:04,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39206349206349206 [2022-12-13 19:29:04,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2022-12-13 19:29:04,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2022-12-13 19:29:04,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:29:04,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2022-12-13 19:29:04,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 19:29:04,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:04,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 19:29:04,986 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 37 flow. Second operand 3 states and 247 transitions. [2022-12-13 19:29:04,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 12 transitions, 52 flow [2022-12-13 19:29:04,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 48 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:29:04,986 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2022-12-13 19:29:04,986 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2022-12-13 19:29:04,987 INFO L288 CegarLoopForPetriNet]: 31 programPoint places, -13 predicate places. [2022-12-13 19:29:04,987 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2022-12-13 19:29:04,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 19:29:04,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (15 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 20 remaining) [2022-12-13 19:29:04,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 20 remaining) [2022-12-13 19:29:04,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 20 remaining) [2022-12-13 19:29:04,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 (8)] Ended with exit code 0 [2022-12-13 19:29:05,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 19:29:05,192 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-13 19:29:05,205 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:29:05,205 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:29:05,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:29:05 BasicIcfg [2022-12-13 19:29:05,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:29:05,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:29:05,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:29:05,209 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:29:05,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:48" (3/4) ... [2022-12-13 19:29:05,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:29:05,218 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 19:29:05,221 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 19:29:05,221 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 19:29:05,222 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 19:29:05,246 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:29:05,246 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:29:05,246 INFO L158 Benchmark]: Toolchain (without parser) took 18318.91ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 50.4MB in the beginning and 42.7MB in the end (delta: 7.7MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-12-13 19:29:05,247 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 26.7MB in the beginning and 26.6MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:29:05,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.15ms. Allocated memory is still 73.4MB. Free memory was 50.3MB in the beginning and 36.7MB in the end (delta: 13.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-12-13 19:29:05,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.60ms. Allocated memory is still 73.4MB. Free memory was 36.7MB in the beginning and 34.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:29:05,247 INFO L158 Benchmark]: Boogie Preprocessor took 18.72ms. Allocated memory is still 73.4MB. Free memory was 34.3MB in the beginning and 32.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:29:05,247 INFO L158 Benchmark]: RCFGBuilder took 432.93ms. Allocated memory is still 73.4MB. Free memory was 32.5MB in the beginning and 36.0MB in the end (delta: -3.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-12-13 19:29:05,247 INFO L158 Benchmark]: TraceAbstraction took 17184.95ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 35.3MB in the beginning and 45.4MB in the end (delta: -10.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-12-13 19:29:05,248 INFO L158 Benchmark]: Witness Printer took 37.38ms. Allocated memory is still 88.1MB. Free memory was 45.4MB in the beginning and 42.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:29:05,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 26.7MB in the beginning and 26.6MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.15ms. Allocated memory is still 73.4MB. Free memory was 50.3MB in the beginning and 36.7MB in the end (delta: 13.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.60ms. Allocated memory is still 73.4MB. Free memory was 36.7MB in the beginning and 34.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.72ms. Allocated memory is still 73.4MB. Free memory was 34.3MB in the beginning and 32.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.93ms. Allocated memory is still 73.4MB. Free memory was 32.5MB in the beginning and 36.0MB in the end (delta: -3.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 17184.95ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 35.3MB in the beginning and 45.4MB in the end (delta: -10.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 37.38ms. Allocated memory is still 88.1MB. Free memory was 45.4MB in the beginning and 42.7MB in the end (delta: 2.7MB). 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: 13.4s, 92 PlacesBefore, 31 PlacesAfterwards, 89 TransitionsBefore, 28 TransitionsAfterwards, 544 CoEnabledTransitionPairs, 8 FixpointIterations, 71 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 115 TotalNumberOfCompositions, 2244 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1218, independent: 1054, independent conditional: 0, independent unconditional: 1054, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 374, independent: 348, independent conditional: 0, independent unconditional: 348, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1218, independent: 706, independent conditional: 0, independent unconditional: 706, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 374, unknown conditional: 0, unknown unconditional: 374] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 928]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 113 locations, 20 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: 17.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 463 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 216 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 1 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 23, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 12 QuantifiedInterpolants, 436 SizeOfPredicates, 7 NumberOfNonLiveVariables, 599 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 19:29:05,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2aa26ea0-0f60-49ec-a3bf-cb6b2e35fffc/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 Result: TRUE