./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:36:44,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:36:44,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:36:44,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:36:44,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:36:44,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:36:44,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:36:44,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:36:44,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:36:44,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:36:44,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:36:44,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:36:44,564 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:36:44,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:36:44,566 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:36:44,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:36:44,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:36:44,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:36:44,568 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:36:44,568 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:36:44,569 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:36:44,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:36:44,570 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:36:44,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:36:44,571 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:36:44,571 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:36:44,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:36:44,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:36:44,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:36:44,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:44,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:36:44,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:36:44,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:36:44,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:36:44,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:36:44,577 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:36:44,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:36:44,577 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:36:44,577 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_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2023-11-06 22:36:44,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:36:44,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:36:44,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:36:44,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:36:44,918 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:36:44,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2023-11-06 22:36:48,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:36:48,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:36:48,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2023-11-06 22:36:48,568 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/data/265d497bb/eb54687aa1d7484b9b46eb833fa4b9a3/FLAGea77a4738 [2023-11-06 22:36:48,585 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/data/265d497bb/eb54687aa1d7484b9b46eb833fa4b9a3 [2023-11-06 22:36:48,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:36:48,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:36:48,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:48,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:36:48,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:36:48,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44764d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:48, skipping insertion in model container [2023-11-06 22:36:48,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:48" (1/1) ... [2023-11-06 22:36:48,677 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:36:49,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:49,107 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:36:49,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:49,223 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:36:49,223 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:36:49,231 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:36:49,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49 WrapperNode [2023-11-06 22:36:49,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:49,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:49,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:36:49,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:36:49,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,316 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-06 22:36:49,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:49,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:36:49,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:36:49,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:36:49,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:36:49,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:36:49,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:36:49,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:36:49,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (1/1) ... [2023-11-06 22:36:49,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:49,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:49,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:49,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:36:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:36:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:36:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:36:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:36:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:36:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:36:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:36:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:36:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:36:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:36:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:36:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:36:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:36:49,478 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:36:49,686 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:36:49,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:36:49,850 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:36:49,857 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:36:49,857 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:36:49,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:49 BoogieIcfgContainer [2023-11-06 22:36:49,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:36:49,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:36:49,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:36:49,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:36:49,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:36:48" (1/3) ... [2023-11-06 22:36:49,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2520126c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:49, skipping insertion in model container [2023-11-06 22:36:49,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:49" (2/3) ... [2023-11-06 22:36:49,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2520126c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:49, skipping insertion in model container [2023-11-06 22:36:49,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:49" (3/3) ... [2023-11-06 22:36:49,882 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2023-11-06 22:36:49,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:36:49,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:36:49,899 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:36:49,961 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:36:50,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 172 flow [2023-11-06 22:36:50,062 INFO L124 PetriNetUnfolderBase]: 3/80 cut-off events. [2023-11-06 22:36:50,062 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:36:50,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 3/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2023-11-06 22:36:50,069 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 82 transitions, 172 flow [2023-11-06 22:36:50,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 75 transitions, 156 flow [2023-11-06 22:36:50,080 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:36:50,093 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 75 transitions, 156 flow [2023-11-06 22:36:50,097 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 75 transitions, 156 flow [2023-11-06 22:36:50,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 156 flow [2023-11-06 22:36:50,129 INFO L124 PetriNetUnfolderBase]: 3/75 cut-off events. [2023-11-06 22:36:50,130 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:36:50,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2023-11-06 22:36:50,133 INFO L119 LiptonReduction]: Number of co-enabled transitions 972 [2023-11-06 22:36:53,047 INFO L134 LiptonReduction]: Checked pairs total: 1933 [2023-11-06 22:36:53,048 INFO L136 LiptonReduction]: Total number of compositions: 88 [2023-11-06 22:36:53,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:36:53,079 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;@590db9bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:36:53,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:36:53,081 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:36:53,081 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:36:53,081 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:36:53,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:53,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:36:53,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 22:36:53,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:53,089 INFO L85 PathProgramCache]: Analyzing trace with hash 306, now seen corresponding path program 1 times [2023-11-06 22:36:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:53,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388421534] [2023-11-06 22:36:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:53,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:53,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:53,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:53,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388421534] [2023-11-06 22:36:53,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388421534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:53,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:53,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:36:53,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603930777] [2023-11-06 22:36:53,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:53,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:36:53,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:36:53,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:36:53,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 170 [2023-11-06 22:36:53,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-11-06 22:36:53,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:53,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 170 [2023-11-06 22:36:53,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:53,429 INFO L124 PetriNetUnfolderBase]: 56/116 cut-off events. [2023-11-06 22:36:53,429 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:36:53,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 116 events. 56/116 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 408 event pairs, 56 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 226. Up to 109 conditions per place. [2023-11-06 22:36:53,436 INFO L140 encePairwiseOnDemand]: 165/170 looper letters, 12 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2023-11-06 22:36:53,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 58 flow [2023-11-06 22:36:53,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:36:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:36:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 169 transitions. [2023-11-06 22:36:53,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4970588235294118 [2023-11-06 22:36:53,458 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 169 transitions. [2023-11-06 22:36:53,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 169 transitions. [2023-11-06 22:36:53,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:53,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 169 transitions. [2023-11-06 22:36:53,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 84.5) internal successors, (169), 2 states have internal predecessors, (169), 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) [2023-11-06 22:36:53,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2023-11-06 22:36:53,481 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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) [2023-11-06 22:36:53,483 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 2 states and 169 transitions. [2023-11-06 22:36:53,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 58 flow [2023-11-06 22:36:53,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:53,488 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 32 flow [2023-11-06 22:36:53,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-11-06 22:36:53,496 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2023-11-06 22:36:53,496 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 32 flow [2023-11-06 22:36:53,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2023-11-06 22:36:53,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:53,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:53,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:36:53,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 22:36:53,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:53,501 INFO L85 PathProgramCache]: Analyzing trace with hash 573727284, now seen corresponding path program 1 times [2023-11-06 22:36:53,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:53,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912130145] [2023-11-06 22:36:53,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:53,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:54,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:54,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912130145] [2023-11-06 22:36:54,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912130145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:54,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:54,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:54,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049306278] [2023-11-06 22:36:54,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:54,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:54,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:54,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:54,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:54,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 170 [2023-11-06 22:36:54,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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) [2023-11-06 22:36:54,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:54,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 170 [2023-11-06 22:36:54,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:54,436 INFO L124 PetriNetUnfolderBase]: 44/92 cut-off events. [2023-11-06 22:36:54,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:36:54,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 92 events. 44/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 288 event pairs, 30 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 187. Up to 83 conditions per place. [2023-11-06 22:36:54,440 INFO L140 encePairwiseOnDemand]: 167/170 looper letters, 11 selfloop transitions, 2 changer transitions 0/15 dead transitions. [2023-11-06 22:36:54,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 15 transitions, 60 flow [2023-11-06 22:36:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:36:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:36:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2023-11-06 22:36:54,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39705882352941174 [2023-11-06 22:36:54,451 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 270 transitions. [2023-11-06 22:36:54,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 270 transitions. [2023-11-06 22:36:54,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:54,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 270 transitions. [2023-11-06 22:36:54,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 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) [2023-11-06 22:36:54,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2023-11-06 22:36:54,460 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2023-11-06 22:36:54,461 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 32 flow. Second operand 4 states and 270 transitions. [2023-11-06 22:36:54,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 15 transitions, 60 flow [2023-11-06 22:36:54,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 60 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:36:54,466 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 34 flow [2023-11-06 22:36:54,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=34, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-11-06 22:36:54,468 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, -3 predicate places. [2023-11-06 22:36:54,468 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 34 flow [2023-11-06 22:36:54,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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) [2023-11-06 22:36:54,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:54,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:54,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:36:54,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 22:36:54,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash 573727266, now seen corresponding path program 1 times [2023-11-06 22:36:54,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:54,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495616530] [2023-11-06 22:36:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:54,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:54,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:54,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495616530] [2023-11-06 22:36:54,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495616530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:54,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:54,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:54,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684978400] [2023-11-06 22:36:54,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:54,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:54,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:54,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:54,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:54,748 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 170 [2023-11-06 22:36:54,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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) [2023-11-06 22:36:54,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:54,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 170 [2023-11-06 22:36:54,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:54,856 INFO L124 PetriNetUnfolderBase]: 114/221 cut-off events. [2023-11-06 22:36:54,857 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:36:54,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 221 events. 114/221 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 875 event pairs, 42 based on Foata normal form. 20/241 useless extension candidates. Maximal degree in co-relation 457. Up to 117 conditions per place. [2023-11-06 22:36:54,859 INFO L140 encePairwiseOnDemand]: 163/170 looper letters, 18 selfloop transitions, 5 changer transitions 13/36 dead transitions. [2023-11-06 22:36:54,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 36 transitions, 156 flow [2023-11-06 22:36:54,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:54,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 378 transitions. [2023-11-06 22:36:54,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4447058823529412 [2023-11-06 22:36:54,862 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 378 transitions. [2023-11-06 22:36:54,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 378 transitions. [2023-11-06 22:36:54,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:54,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 378 transitions. [2023-11-06 22:36:54,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 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) [2023-11-06 22:36:54,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 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) [2023-11-06 22:36:54,867 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 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) [2023-11-06 22:36:54,868 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 34 flow. Second operand 5 states and 378 transitions. [2023-11-06 22:36:54,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 36 transitions, 156 flow [2023-11-06 22:36:54,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 36 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:54,869 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 81 flow [2023-11-06 22:36:54,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-11-06 22:36:54,870 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-11-06 22:36:54,871 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 81 flow [2023-11-06 22:36:54,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.75) internal successors, (279), 4 states have internal predecessors, (279), 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) [2023-11-06 22:36:54,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:54,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:54,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:36:54,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 22:36:54,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:54,872 INFO L85 PathProgramCache]: Analyzing trace with hash 605669410, now seen corresponding path program 1 times [2023-11-06 22:36:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:54,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377184352] [2023-11-06 22:36:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:54,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:55,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:55,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:55,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377184352] [2023-11-06 22:36:55,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377184352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:55,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:55,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:36:55,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988058927] [2023-11-06 22:36:55,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:55,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:36:55,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:55,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:36:55,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:36:55,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 170 [2023-11-06 22:36:55,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2023-11-06 22:36:55,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:55,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 170 [2023-11-06 22:36:55,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:55,229 INFO L124 PetriNetUnfolderBase]: 71/158 cut-off events. [2023-11-06 22:36:55,229 INFO L125 PetriNetUnfolderBase]: For 126/130 co-relation queries the response was YES. [2023-11-06 22:36:55,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 158 events. 71/158 cut-off events. For 126/130 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 630 event pairs, 21 based on Foata normal form. 6/158 useless extension candidates. Maximal degree in co-relation 470. Up to 73 conditions per place. [2023-11-06 22:36:55,237 INFO L140 encePairwiseOnDemand]: 166/170 looper letters, 17 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2023-11-06 22:36:55,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 166 flow [2023-11-06 22:36:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:36:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:36:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2023-11-06 22:36:55,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4323529411764706 [2023-11-06 22:36:55,240 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 294 transitions. [2023-11-06 22:36:55,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 294 transitions. [2023-11-06 22:36:55,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:55,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 294 transitions. [2023-11-06 22:36:55,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2023-11-06 22:36:55,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2023-11-06 22:36:55,246 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2023-11-06 22:36:55,247 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 81 flow. Second operand 4 states and 294 transitions. [2023-11-06 22:36:55,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 166 flow [2023-11-06 22:36:55,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 148 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:55,252 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 97 flow [2023-11-06 22:36:55,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2023-11-06 22:36:55,254 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-11-06 22:36:55,254 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 97 flow [2023-11-06 22:36:55,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2023-11-06 22:36:55,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:55,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:55,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:36:55,256 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 22:36:55,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:55,257 INFO L85 PathProgramCache]: Analyzing trace with hash 603840627, now seen corresponding path program 1 times [2023-11-06 22:36:55,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:55,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929874251] [2023-11-06 22:36:55,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:55,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:55,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:55,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929874251] [2023-11-06 22:36:55,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929874251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:55,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:55,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:55,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405449193] [2023-11-06 22:36:55,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:55,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:55,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:55,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:55,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:55,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 170 [2023-11-06 22:36:55,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-11-06 22:36:55,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:55,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 170 [2023-11-06 22:36:55,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:55,520 INFO L124 PetriNetUnfolderBase]: 73/174 cut-off events. [2023-11-06 22:36:55,520 INFO L125 PetriNetUnfolderBase]: For 159/160 co-relation queries the response was YES. [2023-11-06 22:36:55,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 174 events. 73/174 cut-off events. For 159/160 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 708 event pairs, 52 based on Foata normal form. 14/186 useless extension candidates. Maximal degree in co-relation 511. Up to 136 conditions per place. [2023-11-06 22:36:55,523 INFO L140 encePairwiseOnDemand]: 165/170 looper letters, 17 selfloop transitions, 4 changer transitions 8/32 dead transitions. [2023-11-06 22:36:55,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 206 flow [2023-11-06 22:36:55,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:36:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:36:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 382 transitions. [2023-11-06 22:36:55,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44941176470588234 [2023-11-06 22:36:55,527 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 382 transitions. [2023-11-06 22:36:55,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 382 transitions. [2023-11-06 22:36:55,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:55,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 382 transitions. [2023-11-06 22:36:55,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 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) [2023-11-06 22:36:55,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 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) [2023-11-06 22:36:55,533 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 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) [2023-11-06 22:36:55,533 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 97 flow. Second operand 5 states and 382 transitions. [2023-11-06 22:36:55,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 206 flow [2023-11-06 22:36:55,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 202 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-11-06 22:36:55,537 INFO L231 Difference]: Finished difference. Result has 35 places, 21 transitions, 127 flow [2023-11-06 22:36:55,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=127, PETRI_PLACES=35, PETRI_TRANSITIONS=21} [2023-11-06 22:36:55,539 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2023-11-06 22:36:55,539 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 21 transitions, 127 flow [2023-11-06 22:36:55,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-11-06 22:36:55,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:55,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:55,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:36:55,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 22:36:55,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:55,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1549360591, now seen corresponding path program 1 times [2023-11-06 22:36:55,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:55,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822217844] [2023-11-06 22:36:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:55,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:55,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:55,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822217844] [2023-11-06 22:36:55,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822217844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:55,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:55,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:55,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144146199] [2023-11-06 22:36:55,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:55,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:36:55,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:55,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:36:55,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:36:55,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 170 [2023-11-06 22:36:55,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 21 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-11-06 22:36:55,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:55,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 170 [2023-11-06 22:36:55,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:55,706 INFO L124 PetriNetUnfolderBase]: 20/71 cut-off events. [2023-11-06 22:36:55,707 INFO L125 PetriNetUnfolderBase]: For 92/96 co-relation queries the response was YES. [2023-11-06 22:36:55,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 71 events. 20/71 cut-off events. For 92/96 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 222 event pairs, 7 based on Foata normal form. 6/76 useless extension candidates. Maximal degree in co-relation 240. Up to 46 conditions per place. [2023-11-06 22:36:55,708 INFO L140 encePairwiseOnDemand]: 166/170 looper letters, 16 selfloop transitions, 3 changer transitions 4/27 dead transitions. [2023-11-06 22:36:55,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 192 flow [2023-11-06 22:36:55,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:36:55,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:36:55,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2023-11-06 22:36:55,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4647058823529412 [2023-11-06 22:36:55,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2023-11-06 22:36:55,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2023-11-06 22:36:55,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:55,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2023-11-06 22:36:55,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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) [2023-11-06 22:36:55,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-11-06 22:36:55,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-11-06 22:36:55,715 INFO L175 Difference]: Start difference. First operand has 35 places, 21 transitions, 127 flow. Second operand 3 states and 237 transitions. [2023-11-06 22:36:55,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 192 flow [2023-11-06 22:36:55,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 182 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-06 22:36:55,719 INFO L231 Difference]: Finished difference. Result has 33 places, 19 transitions, 109 flow [2023-11-06 22:36:55,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2023-11-06 22:36:55,720 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2023-11-06 22:36:55,720 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 109 flow [2023-11-06 22:36:55,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2023-11-06 22:36:55,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:55,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:55,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:36:55,722 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-11-06 22:36:55,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:55,722 INFO L85 PathProgramCache]: Analyzing trace with hash -630537641, now seen corresponding path program 1 times [2023-11-06 22:36:55,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:55,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730711525] [2023-11-06 22:36:55,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:55,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:55,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:55,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:55,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730711525] [2023-11-06 22:36:55,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730711525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:55,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:55,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:36:55,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774637649] [2023-11-06 22:36:55,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:55,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:36:55,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:55,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:36:55,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:36:55,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 170 [2023-11-06 22:36:55,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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) [2023-11-06 22:36:55,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:55,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 170 [2023-11-06 22:36:55,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:55,923 INFO L124 PetriNetUnfolderBase]: 8/35 cut-off events. [2023-11-06 22:36:55,923 INFO L125 PetriNetUnfolderBase]: For 35/40 co-relation queries the response was YES. [2023-11-06 22:36:55,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 35 events. 8/35 cut-off events. For 35/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 2 based on Foata normal form. 10/44 useless extension candidates. Maximal degree in co-relation 134. Up to 15 conditions per place. [2023-11-06 22:36:55,924 INFO L140 encePairwiseOnDemand]: 166/170 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-11-06 22:36:55,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 21 transitions, 152 flow [2023-11-06 22:36:55,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:36:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:36:55,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2023-11-06 22:36:55,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45294117647058824 [2023-11-06 22:36:55,927 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 308 transitions. [2023-11-06 22:36:55,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 308 transitions. [2023-11-06 22:36:55,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:55,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 308 transitions. [2023-11-06 22:36:55,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2023-11-06 22:36:55,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2023-11-06 22:36:55,932 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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) [2023-11-06 22:36:55,932 INFO L175 Difference]: Start difference. First operand has 33 places, 19 transitions, 109 flow. Second operand 4 states and 308 transitions. [2023-11-06 22:36:55,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 21 transitions, 152 flow [2023-11-06 22:36:55,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 131 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-06 22:36:55,935 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-11-06 22:36:55,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-11-06 22:36:55,936 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-11-06 22:36:55,936 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-11-06 22:36:55,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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) [2023-11-06 22:36:55,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2023-11-06 22:36:55,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-11-06 22:36:55,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-11-06 22:36:55,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-11-06 22:36:55,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2023-11-06 22:36:55,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-11-06 22:36:55,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-11-06 22:36:55,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-11-06 22:36:55,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:36:55,943 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:55,947 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:36:55,947 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:36:55,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:36:55 BasicIcfg [2023-11-06 22:36:55,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:36:55,953 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:36:55,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:36:55,954 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:36:55,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:49" (3/4) ... [2023-11-06 22:36:55,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:36:55,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:36:55,963 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:36:55,969 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-06 22:36:55,969 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:36:55,969 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:36:55,970 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:36:56,031 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:36:56,031 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:36:56,032 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:36:56,033 INFO L158 Benchmark]: Toolchain (without parser) took 7443.23ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 110.1MB in the beginning and 147.7MB in the end (delta: -37.6MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-11-06 22:36:56,033 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:56,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.85ms. Allocated memory is still 157.3MB. Free memory was 109.8MB in the beginning and 90.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:36:56,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.43ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 87.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:56,034 INFO L158 Benchmark]: Boogie Preprocessor took 61.81ms. Allocated memory is still 157.3MB. Free memory was 87.9MB in the beginning and 86.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:56,035 INFO L158 Benchmark]: RCFGBuilder took 481.00ms. Allocated memory is still 157.3MB. Free memory was 86.7MB in the beginning and 121.6MB in the end (delta: -34.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-06 22:36:56,035 INFO L158 Benchmark]: TraceAbstraction took 6090.05ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 121.1MB in the beginning and 150.8MB in the end (delta: -29.7MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-06 22:36:56,036 INFO L158 Benchmark]: Witness Printer took 78.44ms. Allocated memory is still 201.3MB. Free memory was 150.8MB in the beginning and 147.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:56,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.85ms. Allocated memory is still 157.3MB. Free memory was 109.8MB in the beginning and 90.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.43ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 87.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.81ms. Allocated memory is still 157.3MB. Free memory was 87.9MB in the beginning and 86.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 481.00ms. Allocated memory is still 157.3MB. Free memory was 86.7MB in the beginning and 121.6MB in the end (delta: -34.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6090.05ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 121.1MB in the beginning and 150.8MB in the end (delta: -29.7MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 78.44ms. Allocated memory is still 201.3MB. Free memory was 150.8MB in the beginning and 147.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 79 PlacesBefore, 25 PlacesAfterwards, 75 TransitionsBefore, 19 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 88 TotalNumberOfCompositions, 1933 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1258, independent: 1193, independent conditional: 0, independent unconditional: 1193, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 568, independent: 554, independent conditional: 0, independent unconditional: 554, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1258, independent: 639, independent conditional: 0, independent unconditional: 639, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 568, unknown conditional: 0, unknown unconditional: 568] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 754]: 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 5 procedures, 96 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 316 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 16 mSDtfsCounter, 316 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=5, InterpolantAutomatonStates: 27, 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, 1.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 278 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:36:56,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c375851-8565-4683-bd5e-ad70a5cad22a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE