./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_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_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/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_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/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_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/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 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 --- 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 12:23:53,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:23:53,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:23:53,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:23:53,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:23:53,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:23:53,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:23:53,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:23:53,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:23:53,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:23:53,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:23:53,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:23:53,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:23:53,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:23:53,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:23:53,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:23:53,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:23:53,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:23:53,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:23:53,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:23:53,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:23:53,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:23:53,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:23:53,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:23:53,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:23:53,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:23:53,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:23:53,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:23:53,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:23:53,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:23:53,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:23:53,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:23:53,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:23:53,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:23:53,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:23:53,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:23:53,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:23:53,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:23:53,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:23:53,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:23:53,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:23:53,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 12:23:53,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:23:53,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:23:53,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:23:53,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:23:53,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:23:53,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:23:53,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:23:53,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:23:53,414 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:23:53,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:23:53,415 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:23:53,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:23:53,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:23:53,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:23:53,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:23:53,416 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:23:53,416 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:23:53,416 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:23:53,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:23:53,416 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:23:53,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:23:53,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:23:53,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:23:53,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:23:53,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:23:53,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:23:53,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:23:53,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:23:53,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:23:53,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:23:53,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:23:53,419 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:23:53,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:23:53,419 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:23:53,419 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_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5093baaae269ae8f20fbce19a6dc2a002c438d5951124b2c99d459b145e3e5a5 [2022-12-13 12:23:53,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:23:53,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:23:53,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:23:53,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:23:53,645 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:23:53,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2022-12-13 12:23:56,164 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:23:56,383 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:23:56,383 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i [2022-12-13 12:23:56,396 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/data/e7e17b39a/f8b182d6defb48e9b8a9625ad35bf52b/FLAGba9b3b3b8 [2022-12-13 12:23:56,743 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/data/e7e17b39a/f8b182d6defb48e9b8a9625ad35bf52b [2022-12-13 12:23:56,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:23:56,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:23:56,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:23:56,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:23:56,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:23:56,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:23:56" (1/1) ... [2022-12-13 12:23:56,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8baf0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:56, skipping insertion in model container [2022-12-13 12:23:56,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:23:56" (1/1) ... [2022-12-13 12:23:56,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:23:56,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:23:56,912 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_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2022-12-13 12:23:57,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:23:57,021 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:23:57,030 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_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/sv-benchmarks/c/goblint-regression/13-privatized_33-traces-v-matters_true.i[1093,1106] [2022-12-13 12:23:57,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:23:57,087 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:23:57,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57 WrapperNode [2022-12-13 12:23:57,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:23:57,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:23:57,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:23:57,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:23:57,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,120 INFO L138 Inliner]: procedures = 162, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2022-12-13 12:23:57,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:23:57,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:23:57,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:23:57,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:23:57,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:23:57,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:23:57,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:23:57,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:23:57,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (1/1) ... [2022-12-13 12:23:57,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:23:57,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:23:57,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:23:57,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:23:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:23:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 12:23:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:23:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:23:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 12:23:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 12:23:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:23:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:23:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:23:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:23:57,199 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 12:23:57,287 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:23:57,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:23:57,423 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:23:57,428 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:23:57,428 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:23:57,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:23:57 BoogieIcfgContainer [2022-12-13 12:23:57,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:23:57,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:23:57,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:23:57,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:23:57,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:23:56" (1/3) ... [2022-12-13 12:23:57,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e26c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:23:57, skipping insertion in model container [2022-12-13 12:23:57,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:23:57" (2/3) ... [2022-12-13 12:23:57,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e26c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:23:57, skipping insertion in model container [2022-12-13 12:23:57,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:23:57" (3/3) ... [2022-12-13 12:23:57,437 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2022-12-13 12:23:57,451 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:23:57,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 12:23:57,451 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:23:57,487 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:23:57,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 175 flow [2022-12-13 12:23:57,544 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-12-13 12:23:57,544 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:23:57,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 84 events. 1/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-12-13 12:23:57,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 85 transitions, 175 flow [2022-12-13 12:23:57,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 79 transitions, 161 flow [2022-12-13 12:23:57,556 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:23:57,563 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 79 transitions, 161 flow [2022-12-13 12:23:57,565 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 79 transitions, 161 flow [2022-12-13 12:23:57,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 79 transitions, 161 flow [2022-12-13 12:23:57,582 INFO L130 PetriNetUnfolder]: 1/79 cut-off events. [2022-12-13 12:23:57,582 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:23:57,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 1/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2022-12-13 12:23:57,583 INFO L119 LiptonReduction]: Number of co-enabled transitions 624 [2022-12-13 12:23:59,890 INFO L134 LiptonReduction]: Checked pairs total: 2038 [2022-12-13 12:23:59,890 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-12-13 12:23:59,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:23:59,908 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;@619ab073, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:23:59,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 12:23:59,910 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:23:59,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:23:59,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:23:59,910 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:23:59,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 12:23:59,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:23:59,915 INFO L85 PathProgramCache]: Analyzing trace with hash 294, now seen corresponding path program 1 times [2022-12-13 12:23:59,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:23:59,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636079402] [2022-12-13 12:23:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:23:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:23:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:23:59,998 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 12:23:59,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:23:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636079402] [2022-12-13 12:23:59,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636079402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:23:59,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:23:59,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:24:00,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650375576] [2022-12-13 12:24:00,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:24:00,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:24:00,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:24:00,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:24:00,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:24:00,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 160 [2022-12-13 12:24:00,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 41 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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 12:24:00,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:24:00,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 160 [2022-12-13 12:24:00,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:24:00,065 INFO L130 PetriNetUnfolder]: 24/75 cut-off events. [2022-12-13 12:24:00,066 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:24:00,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 75 events. 24/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 226 event pairs, 24 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 131. Up to 61 conditions per place. [2022-12-13 12:24:00,068 INFO L137 encePairwiseOnDemand]: 157/160 looper letters, 12 selfloop transitions, 0 changer transitions 0/16 dead transitions. [2022-12-13 12:24:00,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 59 flow [2022-12-13 12:24:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:24:00,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:24:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 179 transitions. [2022-12-13 12:24:00,084 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559375 [2022-12-13 12:24:00,085 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 179 transitions. [2022-12-13 12:24:00,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 179 transitions. [2022-12-13 12:24:00,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:24:00,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 179 transitions. [2022-12-13 12:24:00,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 89.5) internal successors, (179), 2 states have internal predecessors, (179), 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 12:24:00,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 12:24:00,093 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 12:24:00,094 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 41 flow. Second operand 2 states and 179 transitions. [2022-12-13 12:24:00,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 59 flow [2022-12-13 12:24:00,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:24:00,097 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 34 flow [2022-12-13 12:24:00,099 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=34, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2022-12-13 12:24:00,101 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2022-12-13 12:24:00,102 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 34 flow [2022-12-13 12:24:00,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 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 12:24:00,102 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:24:00,102 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:24:00,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:24:00,102 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 12:24:00,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:24:00,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1715256210, now seen corresponding path program 1 times [2022-12-13 12:24:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:24:00,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261860446] [2022-12-13 12:24:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:24:00,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:24:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:24:00,240 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 12:24:00,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:24:00,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261860446] [2022-12-13 12:24:00,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261860446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:24:00,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:24:00,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:24:00,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106359154] [2022-12-13 12:24:00,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:24:00,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:24:00,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:24:00,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:24:00,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:24:00,249 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 160 [2022-12-13 12:24:00,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 34 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 12:24:00,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:24:00,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 160 [2022-12-13 12:24:00,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:24:00,287 INFO L130 PetriNetUnfolder]: 25/87 cut-off events. [2022-12-13 12:24:00,287 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:24:00,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 87 events. 25/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 297 event pairs, 10 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 157. Up to 42 conditions per place. [2022-12-13 12:24:00,289 INFO L137 encePairwiseOnDemand]: 156/160 looper letters, 15 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2022-12-13 12:24:00,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 82 flow [2022-12-13 12:24:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:24:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:24:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2022-12-13 12:24:00,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-13 12:24:00,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2022-12-13 12:24:00,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2022-12-13 12:24:00,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:24:00,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2022-12-13 12:24:00,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:24:00,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:24:00,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:24:00,295 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 34 flow. Second operand 3 states and 256 transitions. [2022-12-13 12:24:00,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 82 flow [2022-12-13 12:24:00,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:24:00,295 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 56 flow [2022-12-13 12:24:00,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2022-12-13 12:24:00,296 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2022-12-13 12:24:00,296 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 56 flow [2022-12-13 12:24:00,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 12:24:00,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:24:00,296 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:24:00,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:24:00,297 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 12:24:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:24:00,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1715256204, now seen corresponding path program 1 times [2022-12-13 12:24:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:24:00,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905437711] [2022-12-13 12:24:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:24:00,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:24:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:24:00,410 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 12:24:00,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:24:00,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905437711] [2022-12-13 12:24:00,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905437711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:24:00,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:24:00,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:24:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011232262] [2022-12-13 12:24:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:24:00,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:24:00,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:24:00,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:24:00,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:24:00,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 160 [2022-12-13 12:24:00,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 12:24:00,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:24:00,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 160 [2022-12-13 12:24:00,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:24:00,460 INFO L130 PetriNetUnfolder]: 19/73 cut-off events. [2022-12-13 12:24:00,460 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-13 12:24:00,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 73 events. 19/73 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 233 event pairs, 19 based on Foata normal form. 8/79 useless extension candidates. Maximal degree in co-relation 149. Up to 54 conditions per place. [2022-12-13 12:24:00,461 INFO L137 encePairwiseOnDemand]: 158/160 looper letters, 10 selfloop transitions, 1 changer transitions 1/16 dead transitions. [2022-12-13 12:24:00,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 16 transitions, 70 flow [2022-12-13 12:24:00,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:24:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:24:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2022-12-13 12:24:00,463 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5125 [2022-12-13 12:24:00,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 246 transitions. [2022-12-13 12:24:00,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 246 transitions. [2022-12-13 12:24:00,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:24:00,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 246 transitions. [2022-12-13 12:24:00,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 12:24:00,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:24:00,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:24:00,466 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 56 flow. Second operand 3 states and 246 transitions. [2022-12-13 12:24:00,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 16 transitions, 70 flow [2022-12-13 12:24:00,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 16 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:24:00,467 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 40 flow [2022-12-13 12:24:00,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2022-12-13 12:24:00,468 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2022-12-13 12:24:00,468 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 40 flow [2022-12-13 12:24:00,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 12:24:00,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:24:00,468 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:24:00,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:24:00,469 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 12:24:00,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:24:00,469 INFO L85 PathProgramCache]: Analyzing trace with hash 29447114, now seen corresponding path program 1 times [2022-12-13 12:24:00,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:24:00,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693801290] [2022-12-13 12:24:00,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:24:00,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:24:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:24:00,545 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 12:24:00,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:24:00,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693801290] [2022-12-13 12:24:00,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693801290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:24:00,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:24:00,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:24:00,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077805510] [2022-12-13 12:24:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:24:00,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:24:00,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:24:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:24:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:24:00,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 160 [2022-12-13 12:24:00,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 15 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 12:24:00,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:24:00,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 160 [2022-12-13 12:24:00,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:24:00,596 INFO L130 PetriNetUnfolder]: 10/38 cut-off events. [2022-12-13 12:24:00,596 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 12:24:00,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 38 events. 10/38 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 4 based on Foata normal form. 4/42 useless extension candidates. Maximal degree in co-relation 84. Up to 20 conditions per place. [2022-12-13 12:24:00,597 INFO L137 encePairwiseOnDemand]: 156/160 looper letters, 12 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2022-12-13 12:24:00,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 78 flow [2022-12-13 12:24:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:24:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:24:00,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2022-12-13 12:24:00,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.50625 [2022-12-13 12:24:00,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2022-12-13 12:24:00,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2022-12-13 12:24:00,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:24:00,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2022-12-13 12:24:00,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 12:24:00,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:24:00,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:24:00,602 INFO L175 Difference]: Start difference. First operand has 23 places, 15 transitions, 40 flow. Second operand 3 states and 243 transitions. [2022-12-13 12:24:00,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 78 flow [2022-12-13 12:24:00,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 17 transitions, 77 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:24:00,603 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 47 flow [2022-12-13 12:24:00,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2022-12-13 12:24:00,604 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2022-12-13 12:24:00,604 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 47 flow [2022-12-13 12:24:00,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 12:24:00,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:24:00,605 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:24:00,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:24:00,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 12:24:00,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:24:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1972339316, now seen corresponding path program 2 times [2022-12-13 12:24:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:24:00,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530975556] [2022-12-13 12:24:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:24:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:24:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:24:00,706 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 12:24:00,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:24:00,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530975556] [2022-12-13 12:24:00,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530975556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:24:00,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:24:00,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:24:00,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569070705] [2022-12-13 12:24:00,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:24:00,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:24:00,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:24:00,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:24:00,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:24:00,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 160 [2022-12-13 12:24:00,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 47 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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 12:24:00,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:24:00,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 160 [2022-12-13 12:24:00,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:24:00,793 INFO L130 PetriNetUnfolder]: 4/29 cut-off events. [2022-12-13 12:24:00,793 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:24:00,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 29 events. 4/29 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 73. Up to 15 conditions per place. [2022-12-13 12:24:00,794 INFO L137 encePairwiseOnDemand]: 155/160 looper letters, 13 selfloop transitions, 5 changer transitions 1/19 dead transitions. [2022-12-13 12:24:00,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 97 flow [2022-12-13 12:24:00,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:24:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:24:00,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2022-12-13 12:24:00,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4953125 [2022-12-13 12:24:00,796 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 317 transitions. [2022-12-13 12:24:00,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 317 transitions. [2022-12-13 12:24:00,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:24:00,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 317 transitions. [2022-12-13 12:24:00,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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 12:24:00,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 12:24:00,799 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 12:24:00,799 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 47 flow. Second operand 4 states and 317 transitions. [2022-12-13 12:24:00,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 97 flow [2022-12-13 12:24:00,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:24:00,800 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 61 flow [2022-12-13 12:24:00,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2022-12-13 12:24:00,801 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2022-12-13 12:24:00,801 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 61 flow [2022-12-13 12:24:00,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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 12:24:00,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:24:00,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:24:00,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:24:00,802 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-12-13 12:24:00,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:24:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1314377789, now seen corresponding path program 1 times [2022-12-13 12:24:00,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:24:00,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613080989] [2022-12-13 12:24:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:24:00,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:24:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:24:00,911 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 12:24:00,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:24:00,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613080989] [2022-12-13 12:24:00,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613080989] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:24:00,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:24:00,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:24:00,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901779367] [2022-12-13 12:24:00,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:24:00,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:24:00,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:24:00,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:24:00,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:24:00,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 160 [2022-12-13 12:24:00,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 61 flow. Second operand has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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 12:24:00,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:24:00,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 160 [2022-12-13 12:24:00,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:24:01,013 INFO L130 PetriNetUnfolder]: 1/14 cut-off events. [2022-12-13 12:24:01,014 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 12:24:01,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 14 events. 1/14 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 1 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 37. Up to 8 conditions per place. [2022-12-13 12:24:01,014 INFO L137 encePairwiseOnDemand]: 157/160 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2022-12-13 12:24:01,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 11 transitions, 61 flow [2022-12-13 12:24:01,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:24:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:24:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2022-12-13 12:24:01,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4734375 [2022-12-13 12:24:01,015 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 303 transitions. [2022-12-13 12:24:01,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 303 transitions. [2022-12-13 12:24:01,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:24:01,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 303 transitions. [2022-12-13 12:24:01,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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 12:24:01,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 12:24:01,017 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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 12:24:01,017 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 61 flow. Second operand 4 states and 303 transitions. [2022-12-13 12:24:01,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 11 transitions, 61 flow [2022-12-13 12:24:01,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 11 transitions, 56 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 12:24:01,018 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2022-12-13 12:24:01,018 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, 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=4, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2022-12-13 12:24:01,018 INFO L288 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2022-12-13 12:24:01,018 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2022-12-13 12:24:01,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 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 12:24:01,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2022-12-13 12:24:01,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-12-13 12:24:01,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2022-12-13 12:24:01,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-12-13 12:24:01,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-13 12:24:01,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:24:01,022 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-12-13 12:24:01,025 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:24:01,025 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:24:01,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:24:01 BasicIcfg [2022-12-13 12:24:01,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:24:01,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:24:01,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:24:01,028 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:24:01,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:23:57" (3/4) ... [2022-12-13 12:24:01,031 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:24:01,036 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 12:24:01,039 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-13 12:24:01,039 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 12:24:01,039 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 12:24:01,039 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:24:01,065 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:24:01,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:24:01,066 INFO L158 Benchmark]: Toolchain (without parser) took 4319.33ms. Allocated memory is still 165.7MB. Free memory was 129.0MB in the beginning and 78.4MB in the end (delta: 50.6MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2022-12-13 12:24:01,066 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:24:01,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.56ms. Allocated memory is still 165.7MB. Free memory was 129.0MB in the beginning and 110.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 12:24:01,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.24ms. Allocated memory is still 165.7MB. Free memory was 109.7MB in the beginning and 108.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:24:01,067 INFO L158 Benchmark]: Boogie Preprocessor took 20.67ms. Allocated memory is still 165.7MB. Free memory was 108.2MB in the beginning and 106.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:24:01,067 INFO L158 Benchmark]: RCFGBuilder took 287.06ms. Allocated memory is still 165.7MB. Free memory was 106.7MB in the beginning and 92.9MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 12:24:01,068 INFO L158 Benchmark]: TraceAbstraction took 3596.53ms. Allocated memory is still 165.7MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.0MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-12-13 12:24:01,068 INFO L158 Benchmark]: Witness Printer took 37.21ms. Allocated memory is still 165.7MB. Free memory was 81.5MB in the beginning and 78.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:24:01,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.56ms. Allocated memory is still 165.7MB. Free memory was 129.0MB in the beginning and 110.3MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.24ms. Allocated memory is still 165.7MB. Free memory was 109.7MB in the beginning and 108.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.67ms. Allocated memory is still 165.7MB. Free memory was 108.2MB in the beginning and 106.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 287.06ms. Allocated memory is still 165.7MB. Free memory was 106.7MB in the beginning and 92.9MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3596.53ms. Allocated memory is still 165.7MB. Free memory was 92.6MB in the beginning and 81.5MB in the end (delta: 11.0MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Witness Printer took 37.21ms. Allocated memory is still 165.7MB. Free memory was 81.5MB in the beginning and 78.4MB in the end (delta: 3.1MB). 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: 2.3s, 82 PlacesBefore, 22 PlacesAfterwards, 79 TransitionsBefore, 19 TransitionsAfterwards, 624 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 75 TotalNumberOfCompositions, 2038 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 792, independent: 608, independent conditional: 0, independent unconditional: 608, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 353, independent: 320, independent conditional: 0, independent unconditional: 320, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 792, independent: 288, independent conditional: 0, independent unconditional: 288, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 353, unknown conditional: 0, unknown unconditional: 353] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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: 695]: 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, 100 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: 3.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 269 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 147 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 13 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 0.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 12:24:01,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12a79715-ed1f-40f5-a0f6-d55f237d5ea3/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