./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-1_1-join.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_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/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_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/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_54cb9664-480d-42c9-b059-2e9c2655d0c8/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 ab598119c4148bae0d8b880ae1fca3b30d4f7d9a1b46bb07e7f3565fa04f9e72 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:50,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:50,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:54:50,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:50,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:50,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:50,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:50,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:50,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:50,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:50,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:50,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:50,680 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:50,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:50,681 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:50,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:50,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:50,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:50,683 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:54:50,684 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:54:50,684 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:54:50,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:50,685 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:54:50,686 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:54:50,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:50,687 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:50,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:50,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:50,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:50,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:50,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:50,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:50,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:50,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:54:50,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:50,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:50,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:50,692 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:50,693 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_54cb9664-480d-42c9-b059-2e9c2655d0c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab598119c4148bae0d8b880ae1fca3b30d4f7d9a1b46bb07e7f3565fa04f9e72 [2023-11-19 07:54:50,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:51,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:51,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:51,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:51,050 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:51,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-1_1-join.i [2023-11-19 07:54:54,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:54,643 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:54,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/sv-benchmarks/c/ldv-races/race-1_1-join.i [2023-11-19 07:54:54,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/data/828f09f0e/6669b4ba5de34e2f9426dc536ac20e0b/FLAG307d23b69 [2023-11-19 07:54:54,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/data/828f09f0e/6669b4ba5de34e2f9426dc536ac20e0b [2023-11-19 07:54:54,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:54,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:54,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:54,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:54,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:54,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295121c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:54, skipping insertion in model container [2023-11-19 07:54:54,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:54" (1/1) ... [2023-11-19 07:54:54,817 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:55,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:55,869 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:55,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:56,140 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:56,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56 WrapperNode [2023-11-19 07:54:56,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:56,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:56,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:56,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:56,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,262 INFO L138 Inliner]: procedures = 480, calls = 28, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 103 [2023-11-19 07:54:56,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:56,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:56,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:56,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:56,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:56,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:56,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:56,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:56,332 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (1/1) ... [2023-11-19 07:54:56,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:56,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:56,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:56,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:54:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:54:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:54:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:56,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:54:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:54:56,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:54:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:54:56,453 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 07:54:56,919 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:56,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:57,130 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:57,141 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:57,141 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:54:57,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:57 BoogieIcfgContainer [2023-11-19 07:54:57,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:57,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:57,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:57,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:57,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:54" (1/3) ... [2023-11-19 07:54:57,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e4b969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:57, skipping insertion in model container [2023-11-19 07:54:57,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:56" (2/3) ... [2023-11-19 07:54:57,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e4b969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:57, skipping insertion in model container [2023-11-19 07:54:57,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:57" (3/3) ... [2023-11-19 07:54:57,156 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2023-11-19 07:54:57,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:57,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:54:57,177 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:54:57,274 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:54:57,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 138 transitions, 283 flow [2023-11-19 07:54:57,372 INFO L124 PetriNetUnfolderBase]: 9/156 cut-off events. [2023-11-19 07:54:57,377 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:57,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 156 events. 9/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 349 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 86. Up to 3 conditions per place. [2023-11-19 07:54:57,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 138 transitions, 283 flow [2023-11-19 07:54:57,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 137 transitions, 280 flow [2023-11-19 07:54:57,406 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:54:57,422 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 137 transitions, 280 flow [2023-11-19 07:54:57,428 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 137 transitions, 280 flow [2023-11-19 07:54:57,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 137 transitions, 280 flow [2023-11-19 07:54:57,483 INFO L124 PetriNetUnfolderBase]: 9/156 cut-off events. [2023-11-19 07:54:57,484 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:54:57,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 156 events. 9/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 349 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 86. Up to 3 conditions per place. [2023-11-19 07:54:57,488 INFO L119 LiptonReduction]: Number of co-enabled transitions 968 [2023-11-19 07:55:03,740 INFO L134 LiptonReduction]: Checked pairs total: 912 [2023-11-19 07:55:03,740 INFO L136 LiptonReduction]: Total number of compositions: 186 [2023-11-19 07:55:03,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:03,779 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;@7b53d741, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:03,779 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-19 07:55:03,781 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:03,782 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:55:03,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:03,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:03,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:55:03,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:55:03,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:03,789 INFO L85 PathProgramCache]: Analyzing trace with hash 556, now seen corresponding path program 1 times [2023-11-19 07:55:03,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:03,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523588972] [2023-11-19 07:55:03,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:03,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:04,107 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 07:55:04,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:04,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523588972] [2023-11-19 07:55:04,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523588972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:04,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:04,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:55:04,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163938595] [2023-11-19 07:55:04,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:04,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:55:04,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:55:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:55:04,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 324 [2023-11-19 07:55:04,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 48 flow. Second operand has 2 states, 2 states have (on average 124.5) internal successors, (249), 2 states have internal predecessors, (249), 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 07:55:04,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:04,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 324 [2023-11-19 07:55:04,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:04,231 INFO L124 PetriNetUnfolderBase]: 7/33 cut-off events. [2023-11-19 07:55:04,231 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:04,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 33 events. 7/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 90 event pairs, 6 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 39. Up to 30 conditions per place. [2023-11-19 07:55:04,233 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 11 selfloop transitions, 0 changer transitions 1/15 dead transitions. [2023-11-19 07:55:04,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 15 transitions, 60 flow [2023-11-19 07:55:04,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:55:04,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:55:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 266 transitions. [2023-11-19 07:55:04,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4104938271604938 [2023-11-19 07:55:04,261 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 266 transitions. [2023-11-19 07:55:04,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 266 transitions. [2023-11-19 07:55:04,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:04,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 266 transitions. [2023-11-19 07:55:04,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 133.0) internal successors, (266), 2 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 07:55:04,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 324.0) internal successors, (972), 3 states have internal predecessors, (972), 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 07:55:04,283 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 324.0) internal successors, (972), 3 states have internal predecessors, (972), 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 07:55:04,285 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 48 flow. Second operand 2 states and 266 transitions. [2023-11-19 07:55:04,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 15 transitions, 60 flow [2023-11-19 07:55:04,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:55:04,290 INFO L231 Difference]: Finished difference. Result has 16 places, 14 transitions, 30 flow [2023-11-19 07:55:04,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=30, PETRI_PLACES=16, PETRI_TRANSITIONS=14} [2023-11-19 07:55:04,297 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -7 predicate places. [2023-11-19 07:55:04,297 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 14 transitions, 30 flow [2023-11-19 07:55:04,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 124.5) internal successors, (249), 2 states have internal predecessors, (249), 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 07:55:04,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:04,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:55:04,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:04,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:55:04,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:04,300 INFO L85 PathProgramCache]: Analyzing trace with hash 17883, now seen corresponding path program 1 times [2023-11-19 07:55:04,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:04,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223994830] [2023-11-19 07:55:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:04,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:04,505 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 07:55:04,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:04,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223994830] [2023-11-19 07:55:04,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223994830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:04,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:04,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:55:04,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908985119] [2023-11-19 07:55:04,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:04,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:04,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:04,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:04,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:04,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 324 [2023-11-19 07:55:04,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 14 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 07:55:04,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:04,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 324 [2023-11-19 07:55:04,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:04,566 INFO L124 PetriNetUnfolderBase]: 6/27 cut-off events. [2023-11-19 07:55:04,567 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:04,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 27 events. 6/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 61 event pairs, 5 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 50. Up to 22 conditions per place. [2023-11-19 07:55:04,567 INFO L140 encePairwiseOnDemand]: 319/324 looper letters, 10 selfloop transitions, 2 changer transitions 0/15 dead transitions. [2023-11-19 07:55:04,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 15 transitions, 56 flow [2023-11-19 07:55:04,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:04,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-11-19 07:55:04,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3765432098765432 [2023-11-19 07:55:04,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-11-19 07:55:04,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-11-19 07:55:04,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:04,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-11-19 07:55:04,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 07:55:04,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:04,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:04,578 INFO L175 Difference]: Start difference. First operand has 16 places, 14 transitions, 30 flow. Second operand 3 states and 366 transitions. [2023-11-19 07:55:04,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 15 transitions, 56 flow [2023-11-19 07:55:04,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 15 transitions, 56 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:55:04,580 INFO L231 Difference]: Finished difference. Result has 18 places, 15 transitions, 46 flow [2023-11-19 07:55:04,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=18, PETRI_TRANSITIONS=15} [2023-11-19 07:55:04,581 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -5 predicate places. [2023-11-19 07:55:04,582 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 15 transitions, 46 flow [2023-11-19 07:55:04,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 07:55:04,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:04,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 07:55:04,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:55:04,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:55:04,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 553538, now seen corresponding path program 1 times [2023-11-19 07:55:04,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:04,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355938195] [2023-11-19 07:55:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:04,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:04,660 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 07:55:04,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:04,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355938195] [2023-11-19 07:55:04,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355938195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:04,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:04,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:55:04,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263252907] [2023-11-19 07:55:04,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:04,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:04,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:04,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:04,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:04,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 324 [2023-11-19 07:55:04,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 15 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 07:55:04,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:04,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 324 [2023-11-19 07:55:04,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:04,731 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2023-11-19 07:55:04,732 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:04,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 25 events. 5/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 47 event pairs, 2 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 60. Up to 13 conditions per place. [2023-11-19 07:55:04,732 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 7 selfloop transitions, 4 changer transitions 3/16 dead transitions. [2023-11-19 07:55:04,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 16 transitions, 76 flow [2023-11-19 07:55:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-11-19 07:55:04,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3786008230452675 [2023-11-19 07:55:04,736 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-11-19 07:55:04,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-11-19 07:55:04,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:04,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-11-19 07:55:04,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 07:55:04,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:04,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:04,743 INFO L175 Difference]: Start difference. First operand has 18 places, 15 transitions, 46 flow. Second operand 3 states and 368 transitions. [2023-11-19 07:55:04,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 16 transitions, 76 flow [2023-11-19 07:55:04,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 16 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:55:04,745 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 46 flow [2023-11-19 07:55:04,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2023-11-19 07:55:04,746 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places. [2023-11-19 07:55:04,746 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 46 flow [2023-11-19 07:55:04,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 07:55:04,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:04,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:55:04,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:55:04,748 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:55:04,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:04,748 INFO L85 PathProgramCache]: Analyzing trace with hash 17121854, now seen corresponding path program 1 times [2023-11-19 07:55:04,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:04,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169711937] [2023-11-19 07:55:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:04,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:05,013 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 07:55:05,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:05,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169711937] [2023-11-19 07:55:05,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169711937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:05,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:05,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:55:05,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732550942] [2023-11-19 07:55:05,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:05,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:05,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:05,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:05,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:05,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 324 [2023-11-19 07:55:05,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 07:55:05,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:05,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 324 [2023-11-19 07:55:05,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:05,098 INFO L124 PetriNetUnfolderBase]: 2/14 cut-off events. [2023-11-19 07:55:05,098 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 07:55:05,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 14 events. 2/14 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 2 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. [2023-11-19 07:55:05,099 INFO L140 encePairwiseOnDemand]: 320/324 looper letters, 5 selfloop transitions, 2 changer transitions 0/10 dead transitions. [2023-11-19 07:55:05,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 10 transitions, 46 flow [2023-11-19 07:55:05,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-11-19 07:55:05,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3765432098765432 [2023-11-19 07:55:05,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-11-19 07:55:05,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-11-19 07:55:05,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:05,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-11-19 07:55:05,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 07:55:05,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:05,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:05,109 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 46 flow. Second operand 3 states and 366 transitions. [2023-11-19 07:55:05,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 10 transitions, 46 flow [2023-11-19 07:55:05,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 10 transitions, 36 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-19 07:55:05,110 INFO L231 Difference]: Finished difference. Result has 15 places, 10 transitions, 26 flow [2023-11-19 07:55:05,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=26, PETRI_PLACES=15, PETRI_TRANSITIONS=10} [2023-11-19 07:55:05,111 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -8 predicate places. [2023-11-19 07:55:05,112 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 10 transitions, 26 flow [2023-11-19 07:55:05,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 07:55:05,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:05,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:05,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:55:05,113 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:55:05,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:05,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1021474798, now seen corresponding path program 1 times [2023-11-19 07:55:05,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:05,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175220662] [2023-11-19 07:55:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:05,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:05,254 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 07:55:05,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:05,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175220662] [2023-11-19 07:55:05,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175220662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:05,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:05,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:05,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87208418] [2023-11-19 07:55:05,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:05,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:05,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:05,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:05,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:05,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 324 [2023-11-19 07:55:05,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 10 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 07:55:05,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:05,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 324 [2023-11-19 07:55:05,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:05,323 INFO L124 PetriNetUnfolderBase]: 2/13 cut-off events. [2023-11-19 07:55:05,323 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:05,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 13 events. 2/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 1 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 27. Up to 8 conditions per place. [2023-11-19 07:55:05,324 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 6 selfloop transitions, 2 changer transitions 0/10 dead transitions. [2023-11-19 07:55:05,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 10 transitions, 42 flow [2023-11-19 07:55:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2023-11-19 07:55:05,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37037037037037035 [2023-11-19 07:55:05,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2023-11-19 07:55:05,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2023-11-19 07:55:05,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:05,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2023-11-19 07:55:05,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 07:55:05,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:05,333 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:05,333 INFO L175 Difference]: Start difference. First operand has 15 places, 10 transitions, 26 flow. Second operand 3 states and 360 transitions. [2023-11-19 07:55:05,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 10 transitions, 42 flow [2023-11-19 07:55:05,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 10 transitions, 38 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:55:05,335 INFO L231 Difference]: Finished difference. Result has 14 places, 9 transitions, 24 flow [2023-11-19 07:55:05,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=24, PETRI_PLACES=14, PETRI_TRANSITIONS=9} [2023-11-19 07:55:05,336 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -9 predicate places. [2023-11-19 07:55:05,336 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 9 transitions, 24 flow [2023-11-19 07:55:05,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 07:55:05,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:05,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:05,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:55:05,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:55:05,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1021474797, now seen corresponding path program 1 times [2023-11-19 07:55:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:05,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522237901] [2023-11-19 07:55:05,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:05,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:05,493 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 07:55:05,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:05,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522237901] [2023-11-19 07:55:05,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522237901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:05,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:05,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:05,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662425705] [2023-11-19 07:55:05,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:05,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:05,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:05,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:05,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:05,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 324 [2023-11-19 07:55:05,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 9 transitions, 24 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 07:55:05,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:05,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 324 [2023-11-19 07:55:05,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:05,552 INFO L124 PetriNetUnfolderBase]: 2/12 cut-off events. [2023-11-19 07:55:05,553 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:05,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 12 events. 2/12 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 1 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 27. Up to 8 conditions per place. [2023-11-19 07:55:05,553 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 6 selfloop transitions, 2 changer transitions 0/9 dead transitions. [2023-11-19 07:55:05,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 9 transitions, 40 flow [2023-11-19 07:55:05,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-11-19 07:55:05,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3765432098765432 [2023-11-19 07:55:05,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-11-19 07:55:05,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-11-19 07:55:05,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:05,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-11-19 07:55:05,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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 07:55:05,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:05,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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 07:55:05,563 INFO L175 Difference]: Start difference. First operand has 14 places, 9 transitions, 24 flow. Second operand 3 states and 366 transitions. [2023-11-19 07:55:05,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 9 transitions, 40 flow [2023-11-19 07:55:05,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 9 transitions, 36 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:55:05,564 INFO L231 Difference]: Finished difference. Result has 13 places, 8 transitions, 22 flow [2023-11-19 07:55:05,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=22, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2023-11-19 07:55:05,565 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -10 predicate places. [2023-11-19 07:55:05,565 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 22 flow [2023-11-19 07:55:05,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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 07:55:05,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:05,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:05,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:55:05,567 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 07:55:05,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:05,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1600941247, now seen corresponding path program 1 times [2023-11-19 07:55:05,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:05,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797801998] [2023-11-19 07:55:05,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:05,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:05,780 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 07:55:05,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:05,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797801998] [2023-11-19 07:55:05,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797801998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:05,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:05,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:05,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038250625] [2023-11-19 07:55:05,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:05,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:55:05,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:05,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:55:05,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:55:05,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 324 [2023-11-19 07:55:05,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 8 transitions, 22 flow. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 07:55:05,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:05,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 324 [2023-11-19 07:55:05,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:05,873 INFO L124 PetriNetUnfolderBase]: 2/11 cut-off events. [2023-11-19 07:55:05,874 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:05,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 11 events. 2/11 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 1 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 26. Up to 7 conditions per place. [2023-11-19 07:55:05,874 INFO L140 encePairwiseOnDemand]: 320/324 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-11-19 07:55:05,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 8 transitions, 38 flow [2023-11-19 07:55:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:55:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:55:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2023-11-19 07:55:05,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3618827160493827 [2023-11-19 07:55:05,878 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 469 transitions. [2023-11-19 07:55:05,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 469 transitions. [2023-11-19 07:55:05,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:05,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 469 transitions. [2023-11-19 07:55:05,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 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 07:55:05,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 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 07:55:05,885 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 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 07:55:05,885 INFO L175 Difference]: Start difference. First operand has 13 places, 8 transitions, 22 flow. Second operand 4 states and 469 transitions. [2023-11-19 07:55:05,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 8 transitions, 38 flow [2023-11-19 07:55:05,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:55:05,886 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2023-11-19 07:55:05,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2023-11-19 07:55:05,887 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -10 predicate places. [2023-11-19 07:55:05,887 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 0 transitions, 0 flow [2023-11-19 07:55:05,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 07:55:05,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-11-19 07:55:05,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2023-11-19 07:55:05,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-19 07:55:05,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-19 07:55:05,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (8 of 13 remaining) [2023-11-19 07:55:05,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (7 of 13 remaining) [2023-11-19 07:55:05,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-19 07:55:05,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-11-19 07:55:05,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2023-11-19 07:55:05,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2023-11-19 07:55:05,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (2 of 13 remaining) [2023-11-19 07:55:05,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-11-19 07:55:05,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-19 07:55:05,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:55:05,895 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:05,900 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:55:05,901 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:55:05,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:55:05 BasicIcfg [2023-11-19 07:55:05,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:55:05,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:05,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:05,907 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:05,907 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:57" (3/4) ... [2023-11-19 07:55:05,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:55:05,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 07:55:05,920 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 07:55:05,920 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 07:55:05,921 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:55:05,921 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:55:06,027 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:55:06,027 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:55:06,027 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:06,028 INFO L158 Benchmark]: Toolchain (without parser) took 11311.29ms. Allocated memory was 180.4MB in the beginning and 222.3MB in the end (delta: 41.9MB). Free memory was 144.8MB in the beginning and 136.1MB in the end (delta: 8.7MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2023-11-19 07:55:06,029 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 71.3MB in the beginning and 71.2MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:06,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1423.22ms. Allocated memory is still 180.4MB. Free memory was 144.8MB in the beginning and 90.5MB in the end (delta: 54.3MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:06,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.78ms. Allocated memory is still 180.4MB. Free memory was 90.5MB in the beginning and 87.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:06,030 INFO L158 Benchmark]: Boogie Preprocessor took 66.85ms. Allocated memory is still 180.4MB. Free memory was 87.4MB in the beginning and 84.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:06,030 INFO L158 Benchmark]: RCFGBuilder took 815.45ms. Allocated memory is still 180.4MB. Free memory was 84.2MB in the beginning and 63.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:55:06,031 INFO L158 Benchmark]: TraceAbstraction took 8757.45ms. Allocated memory was 180.4MB in the beginning and 222.3MB in the end (delta: 41.9MB). Free memory was 62.3MB in the beginning and 141.3MB in the end (delta: -79.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:06,031 INFO L158 Benchmark]: Witness Printer took 121.47ms. Allocated memory is still 222.3MB. Free memory was 141.3MB in the beginning and 136.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:06,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 71.3MB in the beginning and 71.2MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1423.22ms. Allocated memory is still 180.4MB. Free memory was 144.8MB in the beginning and 90.5MB in the end (delta: 54.3MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.78ms. Allocated memory is still 180.4MB. Free memory was 90.5MB in the beginning and 87.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.85ms. Allocated memory is still 180.4MB. Free memory was 87.4MB in the beginning and 84.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 815.45ms. Allocated memory is still 180.4MB. Free memory was 84.2MB in the beginning and 63.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8757.45ms. Allocated memory was 180.4MB in the beginning and 222.3MB in the end (delta: 41.9MB). Free memory was 62.3MB in the beginning and 141.3MB in the end (delta: -79.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 121.47ms. Allocated memory is still 222.3MB. Free memory was 141.3MB in the beginning and 136.1MB in the end (delta: 5.2MB). 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: 6.3s, 131 PlacesBefore, 23 PlacesAfterwards, 137 TransitionsBefore, 21 TransitionsAfterwards, 968 CoEnabledTransitionPairs, 7 FixpointIterations, 97 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 24 TrivialYvCompositions, 16 ConcurrentYvCompositions, 8 ChoiceCompositions, 186 TotalNumberOfCompositions, 912 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 912, independent: 912, independent conditional: 0, independent unconditional: 912, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 559, independent: 559, independent conditional: 0, independent unconditional: 559, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 912, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 559, unknown conditional: 0, unknown unconditional: 559] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: 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: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1724]: 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: -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: 1691]: 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, 151 locations, 13 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: 8.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 276 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 43 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:55:06,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cb9664-480d-42c9-b059-2e9c2655d0c8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE