./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 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_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS --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 d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 --- 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-4e7fbc6 [2022-11-23 02:12:23,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:12:23,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:12:23,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:12:23,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:12:23,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:12:23,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:12:23,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:12:23,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:12:23,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:12:23,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:12:23,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:12:23,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:12:23,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:12:23,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:12:23,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:12:23,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:12:23,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:12:23,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:12:23,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:12:23,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:12:23,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:12:23,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:12:23,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:12:23,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:12:23,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:12:23,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:12:23,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:12:23,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:12:23,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:12:23,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:12:23,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:12:23,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:12:23,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:12:23,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:12:23,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:12:23,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:12:23,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:12:23,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:12:23,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:12:23,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:12:23,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-23 02:12:23,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:12:23,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:12:23,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:12:23,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:12:23,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:12:23,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:12:23,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:12:23,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:12:23,190 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:12:23,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:12:23,192 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:12:23,192 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:12:23,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:12:23,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:12:23,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:12:23,193 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 02:12:23,193 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 02:12:23,194 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 02:12:23,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:12:23,194 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 02:12:23,195 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:12:23,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:12:23,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:12:23,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:12:23,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:12:23,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:12:23,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:12:23,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:12:23,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:12:23,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:12:23,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:12:23,198 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:12:23,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:12:23,198 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_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 [2022-11-23 02:12:23,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:12:23,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:12:23,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:12:23,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:12:23,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:12:23,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i [2022-11-23 02:12:26,603 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:12:27,030 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:12:27,031 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i [2022-11-23 02:12:27,058 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/data/8b58c948e/09acba84600b4b8280d0cb3a951fde44/FLAG237666795 [2022-11-23 02:12:27,074 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/data/8b58c948e/09acba84600b4b8280d0cb3a951fde44 [2022-11-23 02:12:27,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:12:27,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:12:27,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:12:27,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:12:27,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:12:27,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79912173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27, skipping insertion in model container [2022-11-23 02:12:27,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:12:27,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:12:27,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:12:27,745 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:12:27,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:12:27,857 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:12:27,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27 WrapperNode [2022-11-23 02:12:27,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:12:27,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:12:27,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:12:27,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:12:27,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,931 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-11-23 02:12:27,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:12:27,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:12:27,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:12:27,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:12:27,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:12:27,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:12:27,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:12:27,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:12:27,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (1/1) ... [2022-11-23 02:12:27,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:12:28,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:28,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:28,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:12:28,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:12:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:12:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:12:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:12:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 02:12:28,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:12:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 02:12:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 02:12:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:12:28,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:12:28,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:12:28,083 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:12:28,310 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:12:28,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:12:28,458 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:12:28,465 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:12:28,465 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:12:28,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:12:28 BoogieIcfgContainer [2022-11-23 02:12:28,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:12:28,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:12:28,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:12:28,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:12:28,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:12:27" (1/3) ... [2022-11-23 02:12:28,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26472463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:12:28, skipping insertion in model container [2022-11-23 02:12:28,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:12:27" (2/3) ... [2022-11-23 02:12:28,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26472463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:12:28, skipping insertion in model container [2022-11-23 02:12:28,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:12:28" (3/3) ... [2022-11-23 02:12:28,480 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2022-11-23 02:12:28,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:12:28,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-23 02:12:28,507 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:12:28,577 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 02:12:28,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 130 flow [2022-11-23 02:12:28,655 INFO L130 PetriNetUnfolder]: 0/60 cut-off events. [2022-11-23 02:12:28,655 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 02:12:28,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 60 events. 0/60 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-23 02:12:28,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 61 transitions, 130 flow [2022-11-23 02:12:28,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 55 transitions, 116 flow [2022-11-23 02:12:28,671 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:12:28,689 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 55 transitions, 116 flow [2022-11-23 02:12:28,692 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 55 transitions, 116 flow [2022-11-23 02:12:28,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 55 transitions, 116 flow [2022-11-23 02:12:28,728 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-11-23 02:12:28,728 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 02:12:28,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 0/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-23 02:12:28,729 INFO L119 LiptonReduction]: Number of co-enabled transitions 126 [2022-11-23 02:12:31,523 INFO L134 LiptonReduction]: Checked pairs total: 281 [2022-11-23 02:12:31,525 INFO L136 LiptonReduction]: Total number of compositions: 57 [2022-11-23 02:12:31,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:12:31,550 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;@caddcc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:12:31,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 02:12:31,552 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 02:12:31,552 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:12:31,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:12:31,553 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 02:12:31,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-23 02:12:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:31,559 INFO L85 PathProgramCache]: Analyzing trace with hash 219, now seen corresponding path program 1 times [2022-11-23 02:12:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:31,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866211503] [2022-11-23 02:12:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:31,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:31,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:31,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866211503] [2022-11-23 02:12:31,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866211503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:31,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:31,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 02:12:31,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283897774] [2022-11-23 02:12:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:31,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:12:31,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:31,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:12:31,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:12:31,749 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 118 [2022-11-23 02:12:31,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 30 flow. Second operand has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:31,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:12:31,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 118 [2022-11-23 02:12:31,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:12:31,809 INFO L130 PetriNetUnfolder]: 8/26 cut-off events. [2022-11-23 02:12:31,809 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 02:12:31,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 26 events. 8/26 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 54 event pairs, 8 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 44. Up to 27 conditions per place. [2022-11-23 02:12:31,812 INFO L137 encePairwiseOnDemand]: 116/118 looper letters, 10 selfloop transitions, 0 changer transitions 0/10 dead transitions. [2022-11-23 02:12:31,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 10 transitions, 46 flow [2022-11-23 02:12:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:12:31,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:12:31,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 130 transitions. [2022-11-23 02:12:31,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5508474576271186 [2022-11-23 02:12:31,830 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 130 transitions. [2022-11-23 02:12:31,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 130 transitions. [2022-11-23 02:12:31,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:31,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 130 transitions. [2022-11-23 02:12:31,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:31,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:31,850 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:31,852 INFO L175 Difference]: Start difference. First operand has 16 places, 12 transitions, 30 flow. Second operand 2 states and 130 transitions. [2022-11-23 02:12:31,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 10 transitions, 46 flow [2022-11-23 02:12:31,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 10 transitions, 42 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:12:31,857 INFO L231 Difference]: Finished difference. Result has 13 places, 10 transitions, 22 flow [2022-11-23 02:12:31,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=22, PETRI_PLACES=13, PETRI_TRANSITIONS=10} [2022-11-23 02:12:31,864 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, -3 predicate places. [2022-11-23 02:12:31,865 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 10 transitions, 22 flow [2022-11-23 02:12:31,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 59.5) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:31,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:12:31,866 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:12:31,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:12:31,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-23 02:12:31,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash 6595009, now seen corresponding path program 1 times [2022-11-23 02:12:31,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:31,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962946295] [2022-11-23 02:12:31,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:31,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:32,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:32,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:32,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962946295] [2022-11-23 02:12:32,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962946295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:32,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:32,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:12:32,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170099285] [2022-11-23 02:12:32,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:32,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:12:32,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:12:32,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:12:32,163 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 118 [2022-11-23 02:12:32,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 10 transitions, 22 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:12:32,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 118 [2022-11-23 02:12:32,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:12:32,186 INFO L130 PetriNetUnfolder]: 6/21 cut-off events. [2022-11-23 02:12:32,186 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:12:32,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 21 events. 6/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 32 event pairs, 6 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 43. Up to 20 conditions per place. [2022-11-23 02:12:32,187 INFO L137 encePairwiseOnDemand]: 115/118 looper letters, 7 selfloop transitions, 2 changer transitions 0/9 dead transitions. [2022-11-23 02:12:32,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 9 transitions, 38 flow [2022-11-23 02:12:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:12:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:12:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2022-11-23 02:12:32,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4858757062146893 [2022-11-23 02:12:32,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2022-11-23 02:12:32,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2022-11-23 02:12:32,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:32,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2022-11-23 02:12:32,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,192 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,193 INFO L175 Difference]: Start difference. First operand has 13 places, 10 transitions, 22 flow. Second operand 3 states and 172 transitions. [2022-11-23 02:12:32,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 9 transitions, 38 flow [2022-11-23 02:12:32,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 9 transitions, 38 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:12:32,194 INFO L231 Difference]: Finished difference. Result has 14 places, 9 transitions, 24 flow [2022-11-23 02:12:32,194 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=9} [2022-11-23 02:12:32,195 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, -2 predicate places. [2022-11-23 02:12:32,195 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 9 transitions, 24 flow [2022-11-23 02:12:32,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:12:32,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:12:32,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:12:32,196 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-23 02:12:32,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:32,197 INFO L85 PathProgramCache]: Analyzing trace with hash 6595010, now seen corresponding path program 1 times [2022-11-23 02:12:32,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:32,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504453527] [2022-11-23 02:12:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:32,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:32,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:32,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504453527] [2022-11-23 02:12:32,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504453527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:32,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:32,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:12:32,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084840630] [2022-11-23 02:12:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:32,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:12:32,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:12:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:12:32,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 118 [2022-11-23 02:12:32,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 9 transitions, 24 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:12:32,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 118 [2022-11-23 02:12:32,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:12:32,336 INFO L130 PetriNetUnfolder]: 4/16 cut-off events. [2022-11-23 02:12:32,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:12:32,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 16 events. 4/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 4 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 35. Up to 15 conditions per place. [2022-11-23 02:12:32,337 INFO L137 encePairwiseOnDemand]: 115/118 looper letters, 6 selfloop transitions, 2 changer transitions 0/8 dead transitions. [2022-11-23 02:12:32,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 8 transitions, 38 flow [2022-11-23 02:12:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:12:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:12:32,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 162 transitions. [2022-11-23 02:12:32,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4576271186440678 [2022-11-23 02:12:32,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 162 transitions. [2022-11-23 02:12:32,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 162 transitions. [2022-11-23 02:12:32,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:32,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 162 transitions. [2022-11-23 02:12:32,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,342 INFO L175 Difference]: Start difference. First operand has 14 places, 9 transitions, 24 flow. Second operand 3 states and 162 transitions. [2022-11-23 02:12:32,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 8 transitions, 38 flow [2022-11-23 02:12:32,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:12:32,343 INFO L231 Difference]: Finished difference. Result has 13 places, 8 transitions, 22 flow [2022-11-23 02:12:32,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=22, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2022-11-23 02:12:32,344 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, -3 predicate places. [2022-11-23 02:12:32,344 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 22 flow [2022-11-23 02:12:32,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:12:32,345 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:12:32,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:12:32,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-23 02:12:32,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:32,346 INFO L85 PathProgramCache]: Analyzing trace with hash 358737170, now seen corresponding path program 1 times [2022-11-23 02:12:32,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:32,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719391034] [2022-11-23 02:12:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:32,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:32,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:32,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719391034] [2022-11-23 02:12:32,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719391034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:32,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:32,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:12:32,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085904018] [2022-11-23 02:12:32,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:32,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:12:32,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:32,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:12:32,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:12:32,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 118 [2022-11-23 02:12:32,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 8 transitions, 22 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:12:32,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 118 [2022-11-23 02:12:32,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:12:32,523 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2022-11-23 02:12:32,523 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:12:32,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 12 events. 1/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 1 based on Foata normal form. 2/14 useless extension candidates. Maximal degree in co-relation 27. Up to 9 conditions per place. [2022-11-23 02:12:32,524 INFO L137 encePairwiseOnDemand]: 114/118 looper letters, 4 selfloop transitions, 4 changer transitions 0/8 dead transitions. [2022-11-23 02:12:32,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 8 transitions, 38 flow [2022-11-23 02:12:32,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:12:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:12:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2022-11-23 02:12:32,531 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4858757062146893 [2022-11-23 02:12:32,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2022-11-23 02:12:32,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2022-11-23 02:12:32,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:32,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2022-11-23 02:12:32,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,535 INFO L175 Difference]: Start difference. First operand has 13 places, 8 transitions, 22 flow. Second operand 3 states and 172 transitions. [2022-11-23 02:12:32,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 8 transitions, 38 flow [2022-11-23 02:12:32,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:12:32,536 INFO L231 Difference]: Finished difference. Result has 13 places, 8 transitions, 26 flow [2022-11-23 02:12:32,536 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=26, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2022-11-23 02:12:32,537 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, -3 predicate places. [2022-11-23 02:12:32,537 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 26 flow [2022-11-23 02:12:32,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,538 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:12:32,538 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:12:32,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:12:32,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-11-23 02:12:32,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:32,540 INFO L85 PathProgramCache]: Analyzing trace with hash 372143120, now seen corresponding path program 2 times [2022-11-23 02:12:32,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:32,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114616681] [2022-11-23 02:12:32,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:32,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:32,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:32,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114616681] [2022-11-23 02:12:32,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114616681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:32,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:32,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:12:32,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608668051] [2022-11-23 02:12:32,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:32,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:12:32,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:32,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:12:32,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:12:32,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 118 [2022-11-23 02:12:32,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 8 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:12:32,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 118 [2022-11-23 02:12:32,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:12:32,707 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2022-11-23 02:12:32,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:12:32,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 11 events. 1/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 1 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 31. Up to 11 conditions per place. [2022-11-23 02:12:32,708 INFO L137 encePairwiseOnDemand]: 116/118 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2022-11-23 02:12:32,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 7 transitions, 38 flow [2022-11-23 02:12:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:12:32,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:12:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2022-11-23 02:12:32,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4887005649717514 [2022-11-23 02:12:32,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 173 transitions. [2022-11-23 02:12:32,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 173 transitions. [2022-11-23 02:12:32,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:32,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 173 transitions. [2022-11-23 02:12:32,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,713 INFO L175 Difference]: Start difference. First operand has 13 places, 8 transitions, 26 flow. Second operand 3 states and 173 transitions. [2022-11-23 02:12:32,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 7 transitions, 38 flow [2022-11-23 02:12:32,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 7 transitions, 34 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:12:32,714 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2022-11-23 02:12:32,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2022-11-23 02:12:32,715 INFO L288 CegarLoopForPetriNet]: 16 programPoint places, -3 predicate places. [2022-11-23 02:12:32,716 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 0 transitions, 0 flow [2022-11-23 02:12:32,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:12:32,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-11-23 02:12:32,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-11-23 02:12:32,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-11-23 02:12:32,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-11-23 02:12:32,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2022-11-23 02:12:32,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2022-11-23 02:12:32,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:12:32,722 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-11-23 02:12:32,725 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 02:12:32,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:12:32,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:12:32 BasicIcfg [2022-11-23 02:12:32,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:12:32,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:12:32,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:12:32,731 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:12:32,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:12:28" (3/4) ... [2022-11-23 02:12:32,735 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:12:32,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-23 02:12:32,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 02:12:32,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 02:12:32,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 02:12:32,781 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:12:32,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:12:32,782 INFO L158 Benchmark]: Toolchain (without parser) took 5703.62ms. Allocated memory is still 186.6MB. Free memory was 153.7MB in the beginning and 84.4MB in the end (delta: 69.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2022-11-23 02:12:32,782 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:12:32,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.75ms. Allocated memory is still 186.6MB. Free memory was 153.3MB in the beginning and 126.5MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 02:12:32,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.27ms. Allocated memory is still 186.6MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:12:32,784 INFO L158 Benchmark]: Boogie Preprocessor took 52.17ms. Allocated memory is still 186.6MB. Free memory was 124.4MB in the beginning and 122.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:12:32,784 INFO L158 Benchmark]: RCFGBuilder took 482.72ms. Allocated memory is still 186.6MB. Free memory was 122.9MB in the beginning and 110.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:12:32,785 INFO L158 Benchmark]: TraceAbstraction took 4260.02ms. Allocated memory is still 186.6MB. Free memory was 109.8MB in the beginning and 86.5MB in the end (delta: 23.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-11-23 02:12:32,785 INFO L158 Benchmark]: Witness Printer took 50.56ms. Allocated memory is still 186.6MB. Free memory was 86.5MB in the beginning and 84.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:12:32,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.75ms. Allocated memory is still 186.6MB. Free memory was 153.3MB in the beginning and 126.5MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.27ms. Allocated memory is still 186.6MB. Free memory was 126.5MB in the beginning and 124.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.17ms. Allocated memory is still 186.6MB. Free memory was 124.4MB in the beginning and 122.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.72ms. Allocated memory is still 186.6MB. Free memory was 122.9MB in the beginning and 110.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4260.02ms. Allocated memory is still 186.6MB. Free memory was 109.8MB in the beginning and 86.5MB in the end (delta: 23.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 50.56ms. Allocated memory is still 186.6MB. Free memory was 86.5MB in the beginning and 84.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 59 PlacesBefore, 16 PlacesAfterwards, 55 TransitionsBefore, 12 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 281 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 237, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 105, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 108, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 237, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 105, unknown conditional: 0, unknown unconditional: 105] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, 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: 926]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 71 locations, 6 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 10 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 02:12:32,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ddcdc33-d157-4eb8-82de-6e867277e468/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE