./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN --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 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 --- 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-6b4ec56 [2022-11-20 09:27:58,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:58,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:58,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:58,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:58,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:58,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:58,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:58,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:58,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:58,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:58,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:58,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:58,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:58,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:58,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:58,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:58,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:58,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:58,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:58,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:58,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:58,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:58,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:58,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:58,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:58,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:58,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:58,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:58,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:58,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:58,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:58,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:58,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:58,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:58,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:58,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:58,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:58,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:58,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:58,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:58,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 09:27:59,004 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:59,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:59,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:59,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:59,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:59,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:59,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:59,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:59,009 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:59,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:59,010 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:59,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:27:59,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:59,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:59,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:59,012 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 09:27:59,012 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 09:27:59,012 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 09:27:59,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:59,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:27:59,013 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:59,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:59,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:59,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:59,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:59,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:59,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:59,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:59,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:59,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:59,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 573c853979782f78b60122afde2824ab47c3f9d6394b4ee74285d458320f7321 [2022-11-20 09:27:59,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:59,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:59,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:59,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:59,346 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:59,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i [2022-11-20 09:28:02,480 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:02,769 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:02,770 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc-deref.i [2022-11-20 09:28:02,802 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/data/6d71655e5/eab4c795b4fb4bb297cd1a88051c8da1/FLAGd425739f6 [2022-11-20 09:28:02,827 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/data/6d71655e5/eab4c795b4fb4bb297cd1a88051c8da1 [2022-11-20 09:28:02,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:02,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:02,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:02,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:02,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:02,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:02" (1/1) ... [2022-11-20 09:28:02,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4632137f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:02, skipping insertion in model container [2022-11-20 09:28:02,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:02" (1/1) ... [2022-11-20 09:28:02,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:02,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:03,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:03,635 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:03,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:03,820 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:03,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03 WrapperNode [2022-11-20 09:28:03,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:03,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:03,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:03,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:03,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,926 INFO L138 Inliner]: procedures = 370, calls = 41, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 185 [2022-11-20 09:28:03,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:03,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:03,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:03,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:03,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:03,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:03,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:03,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:03,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:03,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (1/1) ... [2022-11-20 09:28:04,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:04,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:04,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:04,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c01565-a2b2-4547-9771-070e389ee211/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:28:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:28:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:28:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:28:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:28:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 09:28:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:28:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:28:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:28:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 09:28:04,101 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 09:28:04,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:04,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:04,104 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:28:04,377 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:04,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:05,101 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:05,112 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:05,113 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:28:05,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:05 BoogieIcfgContainer [2022-11-20 09:28:05,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:05,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:05,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:05,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:05,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:02" (1/3) ... [2022-11-20 09:28:05,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a19a171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:05, skipping insertion in model container [2022-11-20 09:28:05,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:03" (2/3) ... [2022-11-20 09:28:05,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a19a171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:05, skipping insertion in model container [2022-11-20 09:28:05,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:05" (3/3) ... [2022-11-20 09:28:05,132 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc-deref.i [2022-11-20 09:28:05,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:05,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2022-11-20 09:28:05,154 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:28:05,249 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 09:28:05,288 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 09:28:05,304 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 318 places, 319 transitions, 643 flow [2022-11-20 09:28:05,308 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 318 places, 319 transitions, 643 flow [2022-11-20 09:28:05,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 319 transitions, 643 flow [2022-11-20 09:28:05,437 INFO L130 PetriNetUnfolder]: 5/318 cut-off events. [2022-11-20 09:28:05,438 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:28:05,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 318 events. 5/318 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 313 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 233. Up to 2 conditions per place. [2022-11-20 09:28:05,490 INFO L119 LiptonReduction]: Number of co-enabled transitions 3136 [2022-11-20 09:29:49,063 WARN L233 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 246 DAG size of output: 244 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:30:01,782 WARN L233 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 246 DAG size of output: 244 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:30:16,486 WARN L233 SmtUtils]: Spent 11.94s on a formula simplification. DAG size of input: 241 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:30:31,934 WARN L233 SmtUtils]: Spent 12.75s on a formula simplification. DAG size of input: 244 DAG size of output: 242 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:30:46,801 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 176 DAG size of output: 174 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:31:12,413 WARN L233 SmtUtils]: Spent 16.08s on a formula simplification. DAG size of input: 256 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:31:34,164 WARN L233 SmtUtils]: Spent 17.70s on a formula simplification. DAG size of input: 253 DAG size of output: 251 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:33:49,033 WARN L233 SmtUtils]: Spent 2.20m on a formula simplification. DAG size of input: 350 DAG size of output: 338 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:34:28,689 WARN L233 SmtUtils]: Spent 39.65s on a formula simplification that was a NOOP. DAG size: 300 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:36:48,784 WARN L233 SmtUtils]: Spent 2.33m on a formula simplification. DAG size of input: 347 DAG size of output: 335 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:37:41,124 WARN L233 SmtUtils]: Spent 52.33s on a formula simplification that was a NOOP. DAG size: 297 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:39:22,958 WARN L233 SmtUtils]: Spent 1.69m on a formula simplification. DAG size of input: 335 DAG size of output: 319 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:39:57,154 WARN L233 SmtUtils]: Spent 34.18s on a formula simplification that was a NOOP. DAG size: 283 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:41:45,229 WARN L233 SmtUtils]: Spent 1.80m on a formula simplification. DAG size of input: 338 DAG size of output: 322 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-20 09:42:17,564 WARN L233 SmtUtils]: Spent 32.33s on a formula simplification that was a NOOP. DAG size: 284 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)