./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:01:05,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:05,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 08:01:05,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:05,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:06,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:06,002 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:06,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:06,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:01:06,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:01:06,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:06,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:06,006 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:06,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:06,007 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:01:06,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:06,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:01:06,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:06,009 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:01:06,009 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:01:06,010 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:01:06,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:01:06,015 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:01:06,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:01:06,015 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:01:06,016 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:06,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:06,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:06,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:01:06,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:06,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:06,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:01:06,020 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:06,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:01:06,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:01:06,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:01:06,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:01:06,021 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:01:06,021 INFO L153 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_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f8eb81fe04afedf177636b6e0b2ff7ec90c549122dc143b3ac2872279b10356 [2023-11-19 08:01:06,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:06,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:06,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:06,360 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:06,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:06,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-11-19 08:01:09,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:09,888 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:09,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/sv-benchmarks/c/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-11-19 08:01:09,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/data/74a843f1b/16de500685764cd8a6fc3c1c5d0ed9c4/FLAG6f4e702c4 [2023-11-19 08:01:09,928 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/data/74a843f1b/16de500685764cd8a6fc3c1c5d0ed9c4 [2023-11-19 08:01:09,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:09,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:09,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:09,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:09,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:09,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:09" (1/1) ... [2023-11-19 08:01:09,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5829b36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:09, skipping insertion in model container [2023-11-19 08:01:09,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:09" (1/1) ... [2023-11-19 08:01:10,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:10,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:10,441 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:10,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:10,562 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:10,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10 WrapperNode [2023-11-19 08:01:10,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:10,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:10,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:10,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:10,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,626 INFO L138 Inliner]: procedures = 162, calls = 32, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 63 [2023-11-19 08:01:10,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:10,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:10,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:10,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:10,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:10,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:10,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:10,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:10,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (1/1) ... [2023-11-19 08:01:10,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:01:10,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:10,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:10,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:01:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:01:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:01:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:01:10,756 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 08:01:10,756 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 08:01:10,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:01:10,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:01:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:10,758 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:01:10,952 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:10,954 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:11,324 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:11,333 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:11,333 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:01:11,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:11 BoogieIcfgContainer [2023-11-19 08:01:11,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:11,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:01:11,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:01:11,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:01:11,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:09" (1/3) ... [2023-11-19 08:01:11,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6372b3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:11, skipping insertion in model container [2023-11-19 08:01:11,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:10" (2/3) ... [2023-11-19 08:01:11,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6372b3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:11, skipping insertion in model container [2023-11-19 08:01:11,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:11" (3/3) ... [2023-11-19 08:01:11,350 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2023-11-19 08:01:11,370 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:01:11,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-19 08:01:11,371 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:01:11,427 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 08:01:11,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 98 transitions, 203 flow [2023-11-19 08:01:11,534 INFO L124 PetriNetUnfolderBase]: 4/97 cut-off events. [2023-11-19 08:01:11,535 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:01:11,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 97 events. 4/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-11-19 08:01:11,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 98 transitions, 203 flow [2023-11-19 08:01:11,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 92 transitions, 190 flow [2023-11-19 08:01:11,548 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:01:11,558 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 92 transitions, 190 flow [2023-11-19 08:01:11,561 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 92 transitions, 190 flow [2023-11-19 08:01:11,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 190 flow [2023-11-19 08:01:11,594 INFO L124 PetriNetUnfolderBase]: 4/92 cut-off events. [2023-11-19 08:01:11,594 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:01:11,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 92 events. 4/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-11-19 08:01:11,597 INFO L119 LiptonReduction]: Number of co-enabled transitions 728 [2023-11-19 08:01:15,968 INFO L134 LiptonReduction]: Checked pairs total: 2569 [2023-11-19 08:01:15,969 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-11-19 08:01:15,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:01:16,009 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;@738f2d5a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:01:16,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 08:01:16,012 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:01:16,012 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:01:16,012 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:01:16,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:16,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:01:16,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:16,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:16,019 INFO L85 PathProgramCache]: Analyzing trace with hash 348, now seen corresponding path program 1 times [2023-11-19 08:01:16,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:16,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506960520] [2023-11-19 08:01:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:16,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:16,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:16,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:16,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506960520] [2023-11-19 08:01:16,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506960520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:16,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:16,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:01:16,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196243770] [2023-11-19 08:01:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:16,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:01:16,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:16,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:01:16,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:01:16,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 188 [2023-11-19 08:01:16,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 56 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2023-11-19 08:01:16,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:16,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 188 [2023-11-19 08:01:16,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:16,264 INFO L124 PetriNetUnfolderBase]: 36/101 cut-off events. [2023-11-19 08:01:16,264 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:01:16,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 101 events. 36/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 359 event pairs, 36 based on Foata normal form. 5/78 useless extension candidates. Maximal degree in co-relation 182. Up to 90 conditions per place. [2023-11-19 08:01:16,267 INFO L140 encePairwiseOnDemand]: 184/188 looper letters, 16 selfloop transitions, 0 changer transitions 1/21 dead transitions. [2023-11-19 08:01:16,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 21 transitions, 82 flow [2023-11-19 08:01:16,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:01:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:01:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 201 transitions. [2023-11-19 08:01:16,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5345744680851063 [2023-11-19 08:01:16,287 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 201 transitions. [2023-11-19 08:01:16,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 201 transitions. [2023-11-19 08:01:16,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:16,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 201 transitions. [2023-11-19 08:01:16,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2023-11-19 08:01:16,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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) [2023-11-19 08:01:16,309 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 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) [2023-11-19 08:01:16,311 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 56 flow. Second operand 2 states and 201 transitions. [2023-11-19 08:01:16,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 21 transitions, 82 flow [2023-11-19 08:01:16,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 21 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:01:16,316 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 42 flow [2023-11-19 08:01:16,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2023-11-19 08:01:16,324 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2023-11-19 08:01:16,325 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 42 flow [2023-11-19 08:01:16,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2023-11-19 08:01:16,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:16,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:01:16,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:01:16,326 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:16,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:16,327 INFO L85 PathProgramCache]: Analyzing trace with hash 329420478, now seen corresponding path program 1 times [2023-11-19 08:01:16,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:16,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590126804] [2023-11-19 08:01:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:16,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:16,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:16,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590126804] [2023-11-19 08:01:16,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590126804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:16,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:16,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:01:16,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108566561] [2023-11-19 08:01:16,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:16,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:16,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:16,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:16,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:16,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 188 [2023-11-19 08:01:16,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:16,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:16,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 188 [2023-11-19 08:01:16,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:16,700 INFO L124 PetriNetUnfolderBase]: 43/119 cut-off events. [2023-11-19 08:01:16,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:01:16,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 119 events. 43/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 399 event pairs, 29 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 226. Up to 73 conditions per place. [2023-11-19 08:01:16,702 INFO L140 encePairwiseOnDemand]: 184/188 looper letters, 22 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-11-19 08:01:16,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 27 transitions, 106 flow [2023-11-19 08:01:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:01:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-11-19 08:01:16,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5088652482269503 [2023-11-19 08:01:16,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-11-19 08:01:16,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-11-19 08:01:16,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:16,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-11-19 08:01:16,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-19 08:01:16,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:16,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:16,712 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 42 flow. Second operand 3 states and 287 transitions. [2023-11-19 08:01:16,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 27 transitions, 106 flow [2023-11-19 08:01:16,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 106 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:01:16,714 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 53 flow [2023-11-19 08:01:16,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-11-19 08:01:16,715 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-11-19 08:01:16,715 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 53 flow [2023-11-19 08:01:16,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:16,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:16,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:16,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:01:16,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:16,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1254526687, now seen corresponding path program 1 times [2023-11-19 08:01:16,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:16,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473157121] [2023-11-19 08:01:16,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:16,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:16,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:16,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473157121] [2023-11-19 08:01:16,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473157121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:16,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:16,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:01:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910025709] [2023-11-19 08:01:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:16,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:16,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:16,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:16,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:16,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 188 [2023-11-19 08:01:16,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-11-19 08:01:16,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:16,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 188 [2023-11-19 08:01:16,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:16,952 INFO L124 PetriNetUnfolderBase]: 25/80 cut-off events. [2023-11-19 08:01:16,952 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-19 08:01:16,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 80 events. 25/80 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 264 event pairs, 25 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 160. Up to 65 conditions per place. [2023-11-19 08:01:16,953 INFO L140 encePairwiseOnDemand]: 185/188 looper letters, 13 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2023-11-19 08:01:16,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 81 flow [2023-11-19 08:01:16,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:16,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:01:16,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2023-11-19 08:01:16,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2023-11-19 08:01:16,957 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2023-11-19 08:01:16,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2023-11-19 08:01:16,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:16,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2023-11-19 08:01:16,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-19 08:01:16,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:16,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:16,962 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 53 flow. Second operand 3 states and 268 transitions. [2023-11-19 08:01:16,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 81 flow [2023-11-19 08:01:16,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 75 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:01:16,963 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 49 flow [2023-11-19 08:01:16,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-11-19 08:01:16,965 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-11-19 08:01:16,965 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 49 flow [2023-11-19 08:01:16,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-11-19 08:01:16,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:16,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:16,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:01:16,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:16,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:16,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1254526688, now seen corresponding path program 1 times [2023-11-19 08:01:16,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:16,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069376235] [2023-11-19 08:01:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:16,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:17,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:17,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069376235] [2023-11-19 08:01:17,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069376235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:17,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:17,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:01:17,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181258992] [2023-11-19 08:01:17,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:17,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:17,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:17,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:17,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:17,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 188 [2023-11-19 08:01:17,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2023-11-19 08:01:17,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:17,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 188 [2023-11-19 08:01:17,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:17,109 INFO L124 PetriNetUnfolderBase]: 21/71 cut-off events. [2023-11-19 08:01:17,110 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-19 08:01:17,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 71 events. 21/71 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 211 event pairs, 21 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 136. Up to 56 conditions per place. [2023-11-19 08:01:17,111 INFO L140 encePairwiseOnDemand]: 185/188 looper letters, 12 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-11-19 08:01:17,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 18 transitions, 75 flow [2023-11-19 08:01:17,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:17,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:01:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-11-19 08:01:17,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4574468085106383 [2023-11-19 08:01:17,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-11-19 08:01:17,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-11-19 08:01:17,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:17,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-11-19 08:01:17,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2023-11-19 08:01:17,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:17,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:17,118 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 49 flow. Second operand 3 states and 258 transitions. [2023-11-19 08:01:17,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 18 transitions, 75 flow [2023-11-19 08:01:17,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 18 transitions, 71 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:01:17,119 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 47 flow [2023-11-19 08:01:17,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2023-11-19 08:01:17,121 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2023-11-19 08:01:17,121 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 47 flow [2023-11-19 08:01:17,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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) [2023-11-19 08:01:17,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:17,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:17,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:01:17,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:17,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:17,123 INFO L85 PathProgramCache]: Analyzing trace with hash -231855814, now seen corresponding path program 1 times [2023-11-19 08:01:17,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:17,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200745155] [2023-11-19 08:01:17,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:17,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:17,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:17,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200745155] [2023-11-19 08:01:17,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200745155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:17,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:17,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:17,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137508258] [2023-11-19 08:01:17,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:17,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:17,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:17,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:17,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:17,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 188 [2023-11-19 08:01:17,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-11-19 08:01:17,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:17,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 188 [2023-11-19 08:01:17,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:17,281 INFO L124 PetriNetUnfolderBase]: 25/85 cut-off events. [2023-11-19 08:01:17,283 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:01:17,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 85 events. 25/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 247 event pairs, 12 based on Foata normal form. 4/89 useless extension candidates. Maximal degree in co-relation 170. Up to 52 conditions per place. [2023-11-19 08:01:17,284 INFO L140 encePairwiseOnDemand]: 181/188 looper letters, 18 selfloop transitions, 7 changer transitions 0/27 dead transitions. [2023-11-19 08:01:17,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 115 flow [2023-11-19 08:01:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:01:17,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2023-11-19 08:01:17,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48404255319148937 [2023-11-19 08:01:17,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2023-11-19 08:01:17,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2023-11-19 08:01:17,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:17,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2023-11-19 08:01:17,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2023-11-19 08:01:17,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:17,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:17,297 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 47 flow. Second operand 3 states and 273 transitions. [2023-11-19 08:01:17,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 115 flow [2023-11-19 08:01:17,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 111 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:01:17,299 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 84 flow [2023-11-19 08:01:17,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2023-11-19 08:01:17,302 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-11-19 08:01:17,302 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 84 flow [2023-11-19 08:01:17,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-11-19 08:01:17,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:17,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:17,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:01:17,304 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:17,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:17,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1430198618, now seen corresponding path program 1 times [2023-11-19 08:01:17,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:17,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562099209] [2023-11-19 08:01:17,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:17,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:17,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:17,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:17,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562099209] [2023-11-19 08:01:17,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562099209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:17,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:17,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:01:17,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856012020] [2023-11-19 08:01:17,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:17,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:01:17,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:17,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:01:17,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:01:17,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 188 [2023-11-19 08:01:17,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2023-11-19 08:01:17,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:17,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 188 [2023-11-19 08:01:17,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:17,657 INFO L124 PetriNetUnfolderBase]: 9/54 cut-off events. [2023-11-19 08:01:17,658 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 08:01:17,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 54 events. 9/54 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 119 event pairs, 4 based on Foata normal form. 9/63 useless extension candidates. Maximal degree in co-relation 146. Up to 31 conditions per place. [2023-11-19 08:01:17,659 INFO L140 encePairwiseOnDemand]: 181/188 looper letters, 13 selfloop transitions, 9 changer transitions 0/24 dead transitions. [2023-11-19 08:01:17,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 132 flow [2023-11-19 08:01:17,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:01:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 349 transitions. [2023-11-19 08:01:17,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4640957446808511 [2023-11-19 08:01:17,661 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 349 transitions. [2023-11-19 08:01:17,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 349 transitions. [2023-11-19 08:01:17,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:17,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 349 transitions. [2023-11-19 08:01:17,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2023-11-19 08:01:17,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 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) [2023-11-19 08:01:17,666 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 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) [2023-11-19 08:01:17,666 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 84 flow. Second operand 4 states and 349 transitions. [2023-11-19 08:01:17,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 132 flow [2023-11-19 08:01:17,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 123 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 08:01:17,669 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 89 flow [2023-11-19 08:01:17,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=89, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-11-19 08:01:17,670 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-11-19 08:01:17,670 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 89 flow [2023-11-19 08:01:17,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2023-11-19 08:01:17,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:17,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:17,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:01:17,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:17,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash -766618334, now seen corresponding path program 2 times [2023-11-19 08:01:17,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:17,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495228967] [2023-11-19 08:01:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:17,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:17,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:17,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495228967] [2023-11-19 08:01:17,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495228967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:17,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:17,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:01:17,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760972053] [2023-11-19 08:01:17,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:17,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:01:17,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:17,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:01:17,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:01:17,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 188 [2023-11-19 08:01:17,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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) [2023-11-19 08:01:17,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:17,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 188 [2023-11-19 08:01:17,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:17,942 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2023-11-19 08:01:17,942 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 08:01:17,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 40 events. 4/40 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 1 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 115. Up to 22 conditions per place. [2023-11-19 08:01:17,943 INFO L140 encePairwiseOnDemand]: 183/188 looper letters, 13 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-11-19 08:01:17,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 117 flow [2023-11-19 08:01:17,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:01:17,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:01:17,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-11-19 08:01:17,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45478723404255317 [2023-11-19 08:01:17,946 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-11-19 08:01:17,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-11-19 08:01:17,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:17,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-11-19 08:01:17,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 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) [2023-11-19 08:01:17,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 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) [2023-11-19 08:01:17,950 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 188.0) internal successors, (940), 5 states have internal predecessors, (940), 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) [2023-11-19 08:01:17,950 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 89 flow. Second operand 4 states and 342 transitions. [2023-11-19 08:01:17,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 117 flow [2023-11-19 08:01:17,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 102 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-19 08:01:17,952 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 73 flow [2023-11-19 08:01:17,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2023-11-19 08:01:17,953 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-11-19 08:01:17,954 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 73 flow [2023-11-19 08:01:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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) [2023-11-19 08:01:17,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:17,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:17,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:01:17,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-19 08:01:17,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:17,956 INFO L85 PathProgramCache]: Analyzing trace with hash -500763040, now seen corresponding path program 1 times [2023-11-19 08:01:17,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:17,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337894170] [2023-11-19 08:01:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:17,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:18,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:18,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337894170] [2023-11-19 08:01:18,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337894170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:18,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:18,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:01:18,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625124121] [2023-11-19 08:01:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:18,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:01:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:18,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:01:18,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:01:18,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 188 [2023-11-19 08:01:18,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-19 08:01:18,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:18,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 188 [2023-11-19 08:01:18,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:18,138 INFO L124 PetriNetUnfolderBase]: 4/39 cut-off events. [2023-11-19 08:01:18,138 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 08:01:18,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 39 events. 4/39 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 104. Up to 29 conditions per place. [2023-11-19 08:01:18,139 INFO L140 encePairwiseOnDemand]: 186/188 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-11-19 08:01:18,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 18 transitions, 97 flow [2023-11-19 08:01:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:01:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:01:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2023-11-19 08:01:18,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2023-11-19 08:01:18,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2023-11-19 08:01:18,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2023-11-19 08:01:18,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:18,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2023-11-19 08:01:18,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-19 08:01:18,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:18,145 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 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) [2023-11-19 08:01:18,145 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 73 flow. Second operand 3 states and 268 transitions. [2023-11-19 08:01:18,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 18 transitions, 97 flow [2023-11-19 08:01:18,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:01:18,147 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-11-19 08:01:18,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-11-19 08:01:18,147 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-11-19 08:01:18,148 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-11-19 08:01:18,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-19 08:01:18,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-11-19 08:01:18,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-11-19 08:01:18,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-11-19 08:01:18,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2023-11-19 08:01:18,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-11-19 08:01:18,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2023-11-19 08:01:18,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2023-11-19 08:01:18,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-11-19 08:01:18,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:01:18,153 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:18,156 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:01:18,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:01:18,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:01:18 BasicIcfg [2023-11-19 08:01:18,161 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:01:18,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:01:18,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:01:18,162 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:01:18,162 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:11" (3/4) ... [2023-11-19 08:01:18,164 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:01:18,168 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 08:01:18,173 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-19 08:01:18,173 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 08:01:18,174 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:01:18,174 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:01:18,260 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:01:18,261 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:01:18,261 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:01:18,262 INFO L158 Benchmark]: Toolchain (without parser) took 8325.26ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 121.9MB in the beginning and 94.6MB in the end (delta: 27.3MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2023-11-19 08:01:18,262 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory was 59.7MB in the beginning and 59.6MB in the end (delta: 142.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:18,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.82ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 102.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:01:18,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.92ms. Allocated memory is still 165.7MB. Free memory was 102.7MB in the beginning and 100.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:18,263 INFO L158 Benchmark]: Boogie Preprocessor took 31.77ms. Allocated memory is still 165.7MB. Free memory was 100.6MB in the beginning and 99.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:18,264 INFO L158 Benchmark]: RCFGBuilder took 677.63ms. Allocated memory is still 165.7MB. Free memory was 99.2MB in the beginning and 133.8MB in the end (delta: -34.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 08:01:18,264 INFO L158 Benchmark]: TraceAbstraction took 6818.70ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 132.6MB in the beginning and 98.8MB in the end (delta: 33.8MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2023-11-19 08:01:18,265 INFO L158 Benchmark]: Witness Printer took 99.86ms. Allocated memory is still 199.2MB. Free memory was 98.8MB in the beginning and 94.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:01:18,267 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory was 59.7MB in the beginning and 59.6MB in the end (delta: 142.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.82ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 102.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.92ms. Allocated memory is still 165.7MB. Free memory was 102.7MB in the beginning and 100.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.77ms. Allocated memory is still 165.7MB. Free memory was 100.6MB in the beginning and 99.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 677.63ms. Allocated memory is still 165.7MB. Free memory was 99.2MB in the beginning and 133.8MB in the end (delta: -34.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6818.70ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 132.6MB in the beginning and 98.8MB in the end (delta: 33.8MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Witness Printer took 99.86ms. Allocated memory is still 199.2MB. Free memory was 98.8MB in the beginning and 94.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 92 PlacesBefore, 28 PlacesAfterwards, 92 TransitionsBefore, 25 TransitionsAfterwards, 728 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 90 TotalNumberOfCompositions, 2569 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 942, independent: 754, independent conditional: 0, independent unconditional: 754, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 402, independent: 376, independent conditional: 0, independent unconditional: 376, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 942, independent: 378, independent conditional: 0, independent unconditional: 378, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 402, unknown conditional: 0, unknown unconditional: 402] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 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, 111 locations, 8 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: 6.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 331 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 440 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 18 mSDtfsCounter, 440 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=6, InterpolantAutomatonStates: 25, 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, 0.9s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 08:01:18,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bcc8be8-02dc-4e57-9546-303db2d444f5/bin/uautomizer-verify-uCwYo4JHxu/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