./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:16:35,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:16:35,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:16:35,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:16:35,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:16:35,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:16:35,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:16:35,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:16:35,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:16:35,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:16:35,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:16:35,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:16:35,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:16:35,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:16:35,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:16:35,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:16:35,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:16:35,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:16:35,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:16:35,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:16:35,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:16:35,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:16:35,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:16:35,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:16:35,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:16:35,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:16:35,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:16:35,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:16:35,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:16:35,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:16:35,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:16:35,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:16:35,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:16:35,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:16:35,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:16:35,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:16:35,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:16:35,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:16:35,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:16:35,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:16:35,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:16:35,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 18:16:35,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:16:35,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:16:35,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:16:35,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:16:35,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:16:35,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:16:35,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:16:35,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:16:35,110 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:16:35,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:16:35,110 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:16:35,110 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:16:35,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:16:35,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:16:35,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:16:35,111 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 18:16:35,111 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 18:16:35,111 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 18:16:35,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:16:35,112 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:16:35,112 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:16:35,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:16:35,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:16:35,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:16:35,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:16:35,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:16:35,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:16:35,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:16:35,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:16:35,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:16:35,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:16:35,114 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:16:35,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:16:35,114 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:16:35,114 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_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 [2022-12-13 18:16:35,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:16:35,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:16:35,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:16:35,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:16:35,323 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:16:35,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2022-12-13 18:16:37,872 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:16:38,059 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:16:38,059 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2022-12-13 18:16:38,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/data/9a9167e8b/8f86fcbb76d94d62880d0930225871ce/FLAG96da40404 [2022-12-13 18:16:38,079 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/data/9a9167e8b/8f86fcbb76d94d62880d0930225871ce [2022-12-13 18:16:38,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:16:38,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:16:38,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:16:38,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:16:38,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:16:38,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668aabde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38, skipping insertion in model container [2022-12-13 18:16:38,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:16:38,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:16:38,228 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2022-12-13 18:16:38,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:16:38,332 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:16:38,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i[1088,1101] [2022-12-13 18:16:38,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:16:38,383 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:16:38,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38 WrapperNode [2022-12-13 18:16:38,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:16:38,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:16:38,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:16:38,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:16:38,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,413 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-13 18:16:38,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:16:38,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:16:38,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:16:38,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:16:38,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:16:38,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:16:38,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:16:38,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:16:38,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (1/1) ... [2022-12-13 18:16:38,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:16:38,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:16:38,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:16:38,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:16:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:16:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 18:16:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:16:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:16:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 18:16:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 18:16:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:16:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:16:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:16:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:16:38,484 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 18:16:38,576 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:16:38,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:16:38,700 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:16:38,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:16:38,705 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:16:38,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:16:38 BoogieIcfgContainer [2022-12-13 18:16:38,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:16:38,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:16:38,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:16:38,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:16:38,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:16:38" (1/3) ... [2022-12-13 18:16:38,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ffc6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:16:38, skipping insertion in model container [2022-12-13 18:16:38,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:16:38" (2/3) ... [2022-12-13 18:16:38,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ffc6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:16:38, skipping insertion in model container [2022-12-13 18:16:38,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:16:38" (3/3) ... [2022-12-13 18:16:38,712 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2022-12-13 18:16:38,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:16:38,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 18:16:38,734 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:16:38,780 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 18:16:38,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 153 flow [2022-12-13 18:16:38,851 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2022-12-13 18:16:38,851 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:16:38,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-13 18:16:38,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 153 flow [2022-12-13 18:16:38,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 68 transitions, 139 flow [2022-12-13 18:16:38,861 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:16:38,871 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 68 transitions, 139 flow [2022-12-13 18:16:38,873 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 68 transitions, 139 flow [2022-12-13 18:16:38,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 68 transitions, 139 flow [2022-12-13 18:16:38,895 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-13 18:16:38,895 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:16:38,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-12-13 18:16:38,897 INFO L119 LiptonReduction]: Number of co-enabled transitions 484 [2022-12-13 18:16:40,836 INFO L134 LiptonReduction]: Checked pairs total: 1192 [2022-12-13 18:16:40,837 INFO L136 LiptonReduction]: Total number of compositions: 65 [2022-12-13 18:16:40,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:16:40,852 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;@12d13311, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:16:40,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 18:16:40,853 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 18:16:40,853 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:16:40,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:16:40,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 18:16:40,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 18:16:40,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:16:40,858 INFO L85 PathProgramCache]: Analyzing trace with hash 260, now seen corresponding path program 1 times [2022-12-13 18:16:40,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:16:40,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134385954] [2022-12-13 18:16:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:16:40,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:16:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:16:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:16:40,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:16:40,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134385954] [2022-12-13 18:16:40,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134385954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:16:40,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:16:40,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 18:16:40,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443089001] [2022-12-13 18:16:40,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:16:40,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:16:40,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:16:40,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:16:40,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:16:40,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 139 [2022-12-13 18:16:40,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:40,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:16:40,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 139 [2022-12-13 18:16:40,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:16:41,010 INFO L130 PetriNetUnfolder]: 24/66 cut-off events. [2022-12-13 18:16:41,011 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:16:41,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 66 events. 24/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 191 event pairs, 24 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 122. Up to 61 conditions per place. [2022-12-13 18:16:41,013 INFO L137 encePairwiseOnDemand]: 137/139 looper letters, 12 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2022-12-13 18:16:41,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 14 transitions, 55 flow [2022-12-13 18:16:41,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:16:41,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 18:16:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 156 transitions. [2022-12-13 18:16:41,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5611510791366906 [2022-12-13 18:16:41,026 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 156 transitions. [2022-12-13 18:16:41,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 156 transitions. [2022-12-13 18:16:41,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:16:41,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 156 transitions. [2022-12-13 18:16:41,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,038 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,039 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 2 states and 156 transitions. [2022-12-13 18:16:41,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 14 transitions, 55 flow [2022-12-13 18:16:41,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 14 transitions, 54 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 18:16:41,043 INFO L231 Difference]: Finished difference. Result has 18 places, 14 transitions, 30 flow [2022-12-13 18:16:41,045 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=14} [2022-12-13 18:16:41,049 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2022-12-13 18:16:41,049 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 14 transitions, 30 flow [2022-12-13 18:16:41,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 71.5) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:16:41,049 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:16:41,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:16:41,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 18:16:41,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:16:41,051 INFO L85 PathProgramCache]: Analyzing trace with hash -958904003, now seen corresponding path program 1 times [2022-12-13 18:16:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:16:41,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305909122] [2022-12-13 18:16:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:16:41,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:16:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:16:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:16:41,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:16:41,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305909122] [2022-12-13 18:16:41,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305909122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:16:41,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:16:41,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:16:41,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455954517] [2022-12-13 18:16:41,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:16:41,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:16:41,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:16:41,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:16:41,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:16:41,234 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 139 [2022-12-13 18:16:41,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:16:41,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 139 [2022-12-13 18:16:41,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:16:41,269 INFO L130 PetriNetUnfolder]: 26/73 cut-off events. [2022-12-13 18:16:41,269 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:16:41,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 73 events. 26/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 208 event pairs, 16 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 142. Up to 42 conditions per place. [2022-12-13 18:16:41,270 INFO L137 encePairwiseOnDemand]: 135/139 looper letters, 15 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2022-12-13 18:16:41,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 19 transitions, 76 flow [2022-12-13 18:16:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:16:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:16:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2022-12-13 18:16:41,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5347721822541966 [2022-12-13 18:16:41,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2022-12-13 18:16:41,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2022-12-13 18:16:41,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:16:41,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2022-12-13 18:16:41,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,276 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 30 flow. Second operand 3 states and 223 transitions. [2022-12-13 18:16:41,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 19 transitions, 76 flow [2022-12-13 18:16:41,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:16:41,277 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 41 flow [2022-12-13 18:16:41,277 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2022-12-13 18:16:41,278 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2022-12-13 18:16:41,278 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 41 flow [2022-12-13 18:16:41,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:16:41,279 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:16:41,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:16:41,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 18:16:41,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:16:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash 338746523, now seen corresponding path program 1 times [2022-12-13 18:16:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:16:41,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215805147] [2022-12-13 18:16:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:16:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:16:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:16:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:16:41,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:16:41,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215805147] [2022-12-13 18:16:41,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215805147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:16:41,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:16:41,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:16:41,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282946877] [2022-12-13 18:16:41,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:16:41,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:16:41,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:16:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:16:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:16:41,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 139 [2022-12-13 18:16:41,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:16:41,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 139 [2022-12-13 18:16:41,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:16:41,432 INFO L130 PetriNetUnfolder]: 17/53 cut-off events. [2022-12-13 18:16:41,433 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 18:16:41,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 53 events. 17/53 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 138 event pairs, 17 based on Foata normal form. 5/56 useless extension candidates. Maximal degree in co-relation 118. Up to 46 conditions per place. [2022-12-13 18:16:41,433 INFO L137 encePairwiseOnDemand]: 137/139 looper letters, 9 selfloop transitions, 1 changer transitions 1/13 dead transitions. [2022-12-13 18:16:41,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 13 transitions, 61 flow [2022-12-13 18:16:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:16:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:16:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2022-12-13 18:16:41,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5107913669064749 [2022-12-13 18:16:41,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 213 transitions. [2022-12-13 18:16:41,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 213 transitions. [2022-12-13 18:16:41,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:16:41,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 213 transitions. [2022-12-13 18:16:41,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,439 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 41 flow. Second operand 3 states and 213 transitions. [2022-12-13 18:16:41,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 13 transitions, 61 flow [2022-12-13 18:16:41,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 55 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:16:41,440 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 33 flow [2022-12-13 18:16:41,440 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2022-12-13 18:16:41,441 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2022-12-13 18:16:41,441 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 33 flow [2022-12-13 18:16:41,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:16:41,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:16:41,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:16:41,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 18:16:41,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:16:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1905300666, now seen corresponding path program 1 times [2022-12-13 18:16:41,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:16:41,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277347441] [2022-12-13 18:16:41,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:16:41,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:16:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:16:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:16:41,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:16:41,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277347441] [2022-12-13 18:16:41,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277347441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:16:41,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:16:41,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:16:41,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320197741] [2022-12-13 18:16:41,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:16:41,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:16:41,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:16:41,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:16:41,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:16:41,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 139 [2022-12-13 18:16:41,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 33 flow. Second operand has 5 states, 5 states have (on average 64.6) internal successors, (323), 5 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:16:41,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 139 [2022-12-13 18:16:41,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:16:41,624 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2022-12-13 18:16:41,625 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:16:41,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 32 events. 8/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 2 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 64. Up to 17 conditions per place. [2022-12-13 18:16:41,625 INFO L137 encePairwiseOnDemand]: 135/139 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2022-12-13 18:16:41,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 55 flow [2022-12-13 18:16:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:16:41,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 18:16:41,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2022-12-13 18:16:41,627 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4766187050359712 [2022-12-13 18:16:41,627 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 265 transitions. [2022-12-13 18:16:41,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 265 transitions. [2022-12-13 18:16:41,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:16:41,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 265 transitions. [2022-12-13 18:16:41,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,631 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,631 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 33 flow. Second operand 4 states and 265 transitions. [2022-12-13 18:16:41,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 55 flow [2022-12-13 18:16:41,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 51 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 18:16:41,632 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2022-12-13 18:16:41,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2022-12-13 18:16:41,633 INFO L288 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2022-12-13 18:16:41,633 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2022-12-13 18:16:41,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.6) internal successors, (323), 5 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:16:41,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2022-12-13 18:16:41,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-12-13 18:16:41,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2022-12-13 18:16:41,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-12-13 18:16:41,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-13 18:16:41,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:16:41,637 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 18:16:41,641 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:16:41,641 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:16:41,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:16:41 BasicIcfg [2022-12-13 18:16:41,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:16:41,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:16:41,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:16:41,645 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:16:41,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:16:38" (3/4) ... [2022-12-13 18:16:41,649 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:16:41,655 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 18:16:41,658 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 18:16:41,658 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 18:16:41,658 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 18:16:41,659 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:16:41,688 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:16:41,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:16:41,689 INFO L158 Benchmark]: Toolchain (without parser) took 3606.15ms. Allocated memory is still 136.3MB. Free memory was 101.5MB in the beginning and 66.4MB in the end (delta: 35.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-12-13 18:16:41,690 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:16:41,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.12ms. Allocated memory is still 136.3MB. Free memory was 101.5MB in the beginning and 82.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 18:16:41,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.75ms. Allocated memory is still 136.3MB. Free memory was 82.7MB in the beginning and 80.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:16:41,691 INFO L158 Benchmark]: Boogie Preprocessor took 16.72ms. Allocated memory is still 136.3MB. Free memory was 80.6MB in the beginning and 79.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:16:41,691 INFO L158 Benchmark]: RCFGBuilder took 275.34ms. Allocated memory is still 136.3MB. Free memory was 79.2MB in the beginning and 66.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 18:16:41,691 INFO L158 Benchmark]: TraceAbstraction took 2936.79ms. Allocated memory is still 136.3MB. Free memory was 65.6MB in the beginning and 68.5MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:16:41,692 INFO L158 Benchmark]: Witness Printer took 43.59ms. Allocated memory is still 136.3MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:16:41,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.12ms. Allocated memory is still 136.3MB. Free memory was 101.5MB in the beginning and 82.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.75ms. Allocated memory is still 136.3MB. Free memory was 82.7MB in the beginning and 80.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.72ms. Allocated memory is still 136.3MB. Free memory was 80.6MB in the beginning and 79.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.34ms. Allocated memory is still 136.3MB. Free memory was 79.2MB in the beginning and 66.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2936.79ms. Allocated memory is still 136.3MB. Free memory was 65.6MB in the beginning and 68.5MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.59ms. Allocated memory is still 136.3MB. Free memory was 68.5MB in the beginning and 66.4MB 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: 2.0s, 71 PlacesBefore, 20 PlacesAfterwards, 68 TransitionsBefore, 16 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 65 TotalNumberOfCompositions, 1192 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 506, independent: 387, independent conditional: 0, independent unconditional: 387, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 264, independent: 238, independent conditional: 0, independent unconditional: 238, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 506, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 264, unknown conditional: 0, unknown unconditional: 264] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: 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, 87 locations, 5 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: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 7 mSDtfsCounter, 161 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:16:41,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eeedd2d-83f0-49fc-9aaa-f38d92fa7326/bin/uautomizer-uyxdKDjOR8/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