./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_power.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_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/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_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/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_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:06:02,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:06:02,638 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:06:02,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:06:02,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:06:02,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:06:02,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:06:02,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:06:02,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:06:02,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:06:02,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:06:02,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:06:02,683 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:06:02,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:06:02,684 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:06:02,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:06:02,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:06:02,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:06:02,686 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:06:02,687 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:06:02,687 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:06:02,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:06:02,689 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:06:02,690 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:06:02,690 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:06:02,691 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:06:02,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:06:02,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:06:02,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:06:02,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:06:02,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:06:02,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:06:02,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:06:02,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:06:02,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:06:02,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:06:02,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:06:02,697 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:06:02,697 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_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2023-11-06 22:06:02,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:06:02,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:06:02,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:06:02,970 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:06:02,970 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:06:02,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/safe035_power.i [2023-11-06 22:06:06,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:06:06,501 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:06:06,501 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/sv-benchmarks/c/pthread-wmm/safe035_power.i [2023-11-06 22:06:06,521 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/data/d32283caf/1ffaf290a88448a2984915985a675174/FLAG83857318f [2023-11-06 22:06:06,537 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/data/d32283caf/1ffaf290a88448a2984915985a675174 [2023-11-06 22:06:06,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:06:06,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:06:06,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:06:06,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:06:06,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:06:06,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:06" (1/1) ... [2023-11-06 22:06:06,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62aa50bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:06, skipping insertion in model container [2023-11-06 22:06:06,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:06" (1/1) ... [2023-11-06 22:06:06,608 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:06:07,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:06:07,172 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:06:07,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:06:07,294 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:06:07,294 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:06:07,302 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:06:07,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07 WrapperNode [2023-11-06 22:06:07,303 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:06:07,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:06:07,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:06:07,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:06:07,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,418 INFO L138 Inliner]: procedures = 176, calls = 61, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 178 [2023-11-06 22:06:07,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:06:07,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:06:07,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:06:07,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:06:07,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:06:07,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:06:07,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:06:07,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:06:07,516 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (1/1) ... [2023-11-06 22:06:07,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:06:07,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:06:07,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:06:07,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:06:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:06:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:06:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:06:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:06:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:06:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:06:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:06:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:06:07,600 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:06:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:06:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:06:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:06:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:06:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:06:07,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:06:07,605 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 22:06:07,822 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:06:07,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:06:08,444 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:06:08,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:06:08,714 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:06:08,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:08 BoogieIcfgContainer [2023-11-06 22:06:08,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:06:08,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:06:08,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:06:08,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:06:08,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:06:06" (1/3) ... [2023-11-06 22:06:08,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416ba702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:08, skipping insertion in model container [2023-11-06 22:06:08,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:07" (2/3) ... [2023-11-06 22:06:08,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416ba702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:08, skipping insertion in model container [2023-11-06 22:06:08,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:08" (3/3) ... [2023-11-06 22:06:08,739 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2023-11-06 22:06:08,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:06:08,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-06 22:06:08,759 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:06:08,840 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:06:08,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 130 transitions, 272 flow [2023-11-06 22:06:09,000 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2023-11-06 22:06:09,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:06:09,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 127 events. 3/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-11-06 22:06:09,008 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 130 transitions, 272 flow [2023-11-06 22:06:09,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 127 transitions, 263 flow [2023-11-06 22:06:09,020 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:06:09,031 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 127 transitions, 263 flow [2023-11-06 22:06:09,035 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 127 transitions, 263 flow [2023-11-06 22:06:09,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 127 transitions, 263 flow [2023-11-06 22:06:09,072 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2023-11-06 22:06:09,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:06:09,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 127 events. 3/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2023-11-06 22:06:09,077 INFO L119 LiptonReduction]: Number of co-enabled transitions 2898 [2023-11-06 22:06:17,451 INFO L134 LiptonReduction]: Checked pairs total: 8897 [2023-11-06 22:06:17,451 INFO L136 LiptonReduction]: Total number of compositions: 132 [2023-11-06 22:06:17,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:06:17,481 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;@108f2585, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:06:17,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-06 22:06:17,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:06:17,483 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-06 22:06:17,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:06:17,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:17,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:06:17,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:17,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash 680, now seen corresponding path program 1 times [2023-11-06 22:06:17,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:17,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329824783] [2023-11-06 22:06:17,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:17,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:17,605 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 22:06:17,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329824783] [2023-11-06 22:06:17,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329824783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:17,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:17,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:06:17,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821831583] [2023-11-06 22:06:17,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:17,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:06:17,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:17,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:06:17,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:06:17,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 262 [2023-11-06 22:06:17,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:17,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:17,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 262 [2023-11-06 22:06:17,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:18,966 INFO L124 PetriNetUnfolderBase]: 3035/4369 cut-off events. [2023-11-06 22:06:18,966 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-06 22:06:18,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8812 conditions, 4369 events. 3035/4369 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 20520 event pairs, 3035 based on Foata normal form. 0/3767 useless extension candidates. Maximal degree in co-relation 8801. Up to 4367 conditions per place. [2023-11-06 22:06:19,007 INFO L140 encePairwiseOnDemand]: 256/262 looper letters, 26 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2023-11-06 22:06:19,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 115 flow [2023-11-06 22:06:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:06:19,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:06:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 254 transitions. [2023-11-06 22:06:19,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4847328244274809 [2023-11-06 22:06:19,026 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 254 transitions. [2023-11-06 22:06:19,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 254 transitions. [2023-11-06 22:06:19,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:19,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 254 transitions. [2023-11-06 22:06:19,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 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 22:06:19,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 22:06:19,042 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 22:06:19,044 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 2 states and 254 transitions. [2023-11-06 22:06:19,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 115 flow [2023-11-06 22:06:19,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:06:19,051 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 60 flow [2023-11-06 22:06:19,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2023-11-06 22:06:19,057 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -8 predicate places. [2023-11-06 22:06:19,058 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 60 flow [2023-11-06 22:06:19,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:19,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:19,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:19,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:06:19,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:19,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:19,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1462588387, now seen corresponding path program 1 times [2023-11-06 22:06:19,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:19,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663271618] [2023-11-06 22:06:19,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:19,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:19,575 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 22:06:19,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:19,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663271618] [2023-11-06 22:06:19,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663271618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:19,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:19,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:06:19,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719586953] [2023-11-06 22:06:19,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:19,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:19,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:19,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:19,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:19,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 262 [2023-11-06 22:06:19,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 22:06:19,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:19,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 262 [2023-11-06 22:06:19,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:20,638 INFO L124 PetriNetUnfolderBase]: 2591/3745 cut-off events. [2023-11-06 22:06:20,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:06:20,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7562 conditions, 3745 events. 2591/3745 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 17940 event pairs, 371 based on Foata normal form. 0/3383 useless extension candidates. Maximal degree in co-relation 7559. Up to 3121 conditions per place. [2023-11-06 22:06:20,666 INFO L140 encePairwiseOnDemand]: 259/262 looper letters, 35 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2023-11-06 22:06:20,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 164 flow [2023-11-06 22:06:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:06:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2023-11-06 22:06:20,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4707379134860051 [2023-11-06 22:06:20,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2023-11-06 22:06:20,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2023-11-06 22:06:20,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:20,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2023-11-06 22:06:20,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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 22:06:20,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 22:06:20,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 22:06:20,690 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 60 flow. Second operand 3 states and 370 transitions. [2023-11-06 22:06:20,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 164 flow [2023-11-06 22:06:20,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:06:20,696 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 60 flow [2023-11-06 22:06:20,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-11-06 22:06:20,698 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-11-06 22:06:20,699 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 60 flow [2023-11-06 22:06:20,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 22:06:20,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:20,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:20,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:06:20,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:20,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:20,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1093213700, now seen corresponding path program 1 times [2023-11-06 22:06:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:20,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566835142] [2023-11-06 22:06:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:21,075 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 22:06:21,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:21,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566835142] [2023-11-06 22:06:21,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566835142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:21,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:21,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:06:21,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99078320] [2023-11-06 22:06:21,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:21,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:21,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:21,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:21,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:21,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 262 [2023-11-06 22:06:21,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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 22:06:21,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:21,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 262 [2023-11-06 22:06:21,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:21,735 INFO L124 PetriNetUnfolderBase]: 1910/2794 cut-off events. [2023-11-06 22:06:21,735 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2023-11-06 22:06:21,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5782 conditions, 2794 events. 1910/2794 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12347 event pairs, 905 based on Foata normal form. 0/2702 useless extension candidates. Maximal degree in co-relation 5778. Up to 1516 conditions per place. [2023-11-06 22:06:21,755 INFO L140 encePairwiseOnDemand]: 259/262 looper letters, 34 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-11-06 22:06:21,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 156 flow [2023-11-06 22:06:21,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:06:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:06:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-11-06 22:06:21,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669211195928753 [2023-11-06 22:06:21,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-11-06 22:06:21,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-11-06 22:06:21,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:21,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-11-06 22:06:21,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 22:06:21,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 22:06:21,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 22:06:21,764 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 60 flow. Second operand 3 states and 367 transitions. [2023-11-06 22:06:21,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 156 flow [2023-11-06 22:06:21,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:06:21,768 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 64 flow [2023-11-06 22:06:21,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-11-06 22:06:21,770 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -7 predicate places. [2023-11-06 22:06:21,770 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 64 flow [2023-11-06 22:06:21,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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 22:06:21,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:21,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:21,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:06:21,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:21,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1093213725, now seen corresponding path program 1 times [2023-11-06 22:06:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486458216] [2023-11-06 22:06:21,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:22,378 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 22:06:22,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:22,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486458216] [2023-11-06 22:06:22,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486458216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:22,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:22,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:22,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740385527] [2023-11-06 22:06:22,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:22,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:22,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:22,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:22,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:22,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 262 [2023-11-06 22:06:22,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 96.8) internal successors, (484), 5 states have internal predecessors, (484), 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 22:06:22,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:22,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 262 [2023-11-06 22:06:22,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:23,048 INFO L124 PetriNetUnfolderBase]: 1466/2168 cut-off events. [2023-11-06 22:06:23,048 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-06 22:06:23,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4683 conditions, 2168 events. 1466/2168 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9485 event pairs, 360 based on Foata normal form. 180/2348 useless extension candidates. Maximal degree in co-relation 4678. Up to 2098 conditions per place. [2023-11-06 22:06:23,066 INFO L140 encePairwiseOnDemand]: 258/262 looper letters, 33 selfloop transitions, 3 changer transitions 0/37 dead transitions. [2023-11-06 22:06:23,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 160 flow [2023-11-06 22:06:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:06:23,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:06:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2023-11-06 22:06:23,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39083969465648855 [2023-11-06 22:06:23,070 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 512 transitions. [2023-11-06 22:06:23,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 512 transitions. [2023-11-06 22:06:23,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:23,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 512 transitions. [2023-11-06 22:06:23,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 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 22:06:23,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 22:06:23,078 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 22:06:23,079 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 64 flow. Second operand 5 states and 512 transitions. [2023-11-06 22:06:23,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 160 flow [2023-11-06 22:06:23,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:06:23,084 INFO L231 Difference]: Finished difference. Result has 37 places, 24 transitions, 64 flow [2023-11-06 22:06:23,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2023-11-06 22:06:23,085 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2023-11-06 22:06:23,086 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 64 flow [2023-11-06 22:06:23,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.8) internal successors, (484), 5 states have internal predecessors, (484), 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 22:06:23,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:23,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:23,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:06:23,087 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:23,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:23,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1737128274, now seen corresponding path program 1 times [2023-11-06 22:06:23,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:23,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938405463] [2023-11-06 22:06:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:23,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:24,946 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 22:06:24,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:24,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938405463] [2023-11-06 22:06:24,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938405463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:24,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:24,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:24,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327948803] [2023-11-06 22:06:24,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:24,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:06:24,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:24,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:06:24,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:06:24,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 262 [2023-11-06 22:06:24,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 64 flow. Second operand has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 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 22:06:24,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:24,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 262 [2023-11-06 22:06:24,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:25,811 INFO L124 PetriNetUnfolderBase]: 2343/3477 cut-off events. [2023-11-06 22:06:25,811 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2023-11-06 22:06:25,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7326 conditions, 3477 events. 2343/3477 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16864 event pairs, 383 based on Foata normal form. 90/3565 useless extension candidates. Maximal degree in co-relation 7321. Up to 1784 conditions per place. [2023-11-06 22:06:25,832 INFO L140 encePairwiseOnDemand]: 251/262 looper letters, 47 selfloop transitions, 10 changer transitions 3/61 dead transitions. [2023-11-06 22:06:25,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 61 transitions, 259 flow [2023-11-06 22:06:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:06:25,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:06:25,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 586 transitions. [2023-11-06 22:06:25,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44732824427480916 [2023-11-06 22:06:25,836 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 586 transitions. [2023-11-06 22:06:25,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 586 transitions. [2023-11-06 22:06:25,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:25,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 586 transitions. [2023-11-06 22:06:25,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 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 22:06:25,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 22:06:25,844 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 22:06:25,844 INFO L175 Difference]: Start difference. First operand has 37 places, 24 transitions, 64 flow. Second operand 5 states and 586 transitions. [2023-11-06 22:06:25,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 61 transitions, 259 flow [2023-11-06 22:06:25,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:06:25,847 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 123 flow [2023-11-06 22:06:25,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2023-11-06 22:06:25,848 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-11-06 22:06:25,848 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 123 flow [2023-11-06 22:06:25,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 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 22:06:25,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:25,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:25,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:06:25,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:25,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:25,850 INFO L85 PathProgramCache]: Analyzing trace with hash -864508972, now seen corresponding path program 2 times [2023-11-06 22:06:25,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:25,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952510686] [2023-11-06 22:06:25,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:25,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:26,825 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 22:06:26,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:26,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952510686] [2023-11-06 22:06:26,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952510686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:26,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:26,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:06:26,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257540933] [2023-11-06 22:06:26,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:26,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:06:26,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:26,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:06:26,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:26,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 262 [2023-11-06 22:06:26,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 123 flow. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 22:06:26,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:26,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 262 [2023-11-06 22:06:26,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:27,900 INFO L124 PetriNetUnfolderBase]: 2744/4065 cut-off events. [2023-11-06 22:06:27,900 INFO L125 PetriNetUnfolderBase]: For 1554/1554 co-relation queries the response was YES. [2023-11-06 22:06:27,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10987 conditions, 4065 events. 2744/4065 cut-off events. For 1554/1554 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 20079 event pairs, 269 based on Foata normal form. 30/4094 useless extension candidates. Maximal degree in co-relation 10980. Up to 2781 conditions per place. [2023-11-06 22:06:27,933 INFO L140 encePairwiseOnDemand]: 249/262 looper letters, 56 selfloop transitions, 20 changer transitions 1/78 dead transitions. [2023-11-06 22:06:27,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 78 transitions, 435 flow [2023-11-06 22:06:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:06:27,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:06:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 805 transitions. [2023-11-06 22:06:27,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4389312977099237 [2023-11-06 22:06:27,938 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 805 transitions. [2023-11-06 22:06:27,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 805 transitions. [2023-11-06 22:06:27,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:27,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 805 transitions. [2023-11-06 22:06:27,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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 22:06:27,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 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 22:06:27,947 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 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 22:06:27,947 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 123 flow. Second operand 7 states and 805 transitions. [2023-11-06 22:06:27,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 78 transitions, 435 flow [2023-11-06 22:06:27,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 78 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:06:27,954 INFO L231 Difference]: Finished difference. Result has 46 places, 46 transitions, 255 flow [2023-11-06 22:06:27,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2023-11-06 22:06:27,955 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2023-11-06 22:06:27,955 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 255 flow [2023-11-06 22:06:27,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 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 22:06:27,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:27,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:27,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:06:27,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:27,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash 687773255, now seen corresponding path program 1 times [2023-11-06 22:06:27,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:27,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849612329] [2023-11-06 22:06:27,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:27,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:28,249 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 22:06:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849612329] [2023-11-06 22:06:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849612329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:28,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:28,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:28,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580018509] [2023-11-06 22:06:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:28,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:28,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:28,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:28,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:28,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 262 [2023-11-06 22:06:28,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 255 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 22:06:28,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:28,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 262 [2023-11-06 22:06:28,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:29,130 INFO L124 PetriNetUnfolderBase]: 2093/3311 cut-off events. [2023-11-06 22:06:29,130 INFO L125 PetriNetUnfolderBase]: For 4918/4918 co-relation queries the response was YES. [2023-11-06 22:06:29,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11130 conditions, 3311 events. 2093/3311 cut-off events. For 4918/4918 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 18018 event pairs, 274 based on Foata normal form. 376/3686 useless extension candidates. Maximal degree in co-relation 11121. Up to 1580 conditions per place. [2023-11-06 22:06:29,158 INFO L140 encePairwiseOnDemand]: 256/262 looper letters, 75 selfloop transitions, 4 changer transitions 64/144 dead transitions. [2023-11-06 22:06:29,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 144 transitions, 1105 flow [2023-11-06 22:06:29,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:06:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:06:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 582 transitions. [2023-11-06 22:06:29,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4442748091603053 [2023-11-06 22:06:29,165 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 582 transitions. [2023-11-06 22:06:29,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 582 transitions. [2023-11-06 22:06:29,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:29,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 582 transitions. [2023-11-06 22:06:29,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 22:06:29,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 22:06:29,180 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 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 22:06:29,180 INFO L175 Difference]: Start difference. First operand has 46 places, 46 transitions, 255 flow. Second operand 5 states and 582 transitions. [2023-11-06 22:06:29,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 144 transitions, 1105 flow [2023-11-06 22:06:29,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 144 transitions, 1038 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-06 22:06:29,199 INFO L231 Difference]: Finished difference. Result has 49 places, 49 transitions, 284 flow [2023-11-06 22:06:29,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=284, PETRI_PLACES=49, PETRI_TRANSITIONS=49} [2023-11-06 22:06:29,201 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 6 predicate places. [2023-11-06 22:06:29,202 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 49 transitions, 284 flow [2023-11-06 22:06:29,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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 22:06:29,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:29,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:29,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:06:29,203 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:29,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:29,203 INFO L85 PathProgramCache]: Analyzing trace with hash -450782852, now seen corresponding path program 1 times [2023-11-06 22:06:29,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:29,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762726488] [2023-11-06 22:06:29,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:29,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:29,853 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 22:06:29,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:29,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762726488] [2023-11-06 22:06:29,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762726488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:29,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:29,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:29,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516329960] [2023-11-06 22:06:29,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:29,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:06:29,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:29,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:06:29,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:06:29,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 262 [2023-11-06 22:06:29,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 49 transitions, 284 flow. Second operand has 7 states, 7 states have (on average 107.14285714285714) internal successors, (750), 7 states have internal predecessors, (750), 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 22:06:29,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:29,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 262 [2023-11-06 22:06:29,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:30,975 INFO L124 PetriNetUnfolderBase]: 1707/2820 cut-off events. [2023-11-06 22:06:30,975 INFO L125 PetriNetUnfolderBase]: For 3804/3804 co-relation queries the response was YES. [2023-11-06 22:06:30,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10799 conditions, 2820 events. 1707/2820 cut-off events. For 3804/3804 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 15525 event pairs, 184 based on Foata normal form. 42/2861 useless extension candidates. Maximal degree in co-relation 10787. Up to 1363 conditions per place. [2023-11-06 22:06:30,994 INFO L140 encePairwiseOnDemand]: 249/262 looper letters, 96 selfloop transitions, 29 changer transitions 9/135 dead transitions. [2023-11-06 22:06:30,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 135 transitions, 1028 flow [2023-11-06 22:06:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:06:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:06:30,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1041 transitions. [2023-11-06 22:06:30,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44147582697201015 [2023-11-06 22:06:30,999 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1041 transitions. [2023-11-06 22:06:30,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1041 transitions. [2023-11-06 22:06:31,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:31,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1041 transitions. [2023-11-06 22:06:31,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 115.66666666666667) internal successors, (1041), 9 states have internal predecessors, (1041), 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 22:06:31,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 262.0) internal successors, (2620), 10 states have internal predecessors, (2620), 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 22:06:31,011 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 262.0) internal successors, (2620), 10 states have internal predecessors, (2620), 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 22:06:31,011 INFO L175 Difference]: Start difference. First operand has 49 places, 49 transitions, 284 flow. Second operand 9 states and 1041 transitions. [2023-11-06 22:06:31,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 135 transitions, 1028 flow [2023-11-06 22:06:31,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 135 transitions, 991 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-11-06 22:06:31,027 INFO L231 Difference]: Finished difference. Result has 58 places, 71 transitions, 566 flow [2023-11-06 22:06:31,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=566, PETRI_PLACES=58, PETRI_TRANSITIONS=71} [2023-11-06 22:06:31,028 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 15 predicate places. [2023-11-06 22:06:31,029 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 71 transitions, 566 flow [2023-11-06 22:06:31,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.14285714285714) internal successors, (750), 7 states have internal predecessors, (750), 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 22:06:31,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:31,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:31,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:06:31,030 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:31,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:31,031 INFO L85 PathProgramCache]: Analyzing trace with hash -888038122, now seen corresponding path program 2 times [2023-11-06 22:06:31,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:31,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516978860] [2023-11-06 22:06:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:31,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:31,292 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 22:06:31,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:31,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516978860] [2023-11-06 22:06:31,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516978860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:31,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:31,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:06:31,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479301646] [2023-11-06 22:06:31,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:31,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:06:31,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:31,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:06:31,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:06:31,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 262 [2023-11-06 22:06:31,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 71 transitions, 566 flow. Second operand has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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 22:06:31,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:31,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 262 [2023-11-06 22:06:31,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:31,857 INFO L124 PetriNetUnfolderBase]: 1053/1802 cut-off events. [2023-11-06 22:06:31,857 INFO L125 PetriNetUnfolderBase]: For 8876/8876 co-relation queries the response was YES. [2023-11-06 22:06:31,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8262 conditions, 1802 events. 1053/1802 cut-off events. For 8876/8876 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9352 event pairs, 166 based on Foata normal form. 179/1980 useless extension candidates. Maximal degree in co-relation 8246. Up to 757 conditions per place. [2023-11-06 22:06:31,869 INFO L140 encePairwiseOnDemand]: 256/262 looper letters, 124 selfloop transitions, 7 changer transitions 61/193 dead transitions. [2023-11-06 22:06:31,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 193 transitions, 1929 flow [2023-11-06 22:06:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:06:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:06:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 700 transitions. [2023-11-06 22:06:31,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44529262086513993 [2023-11-06 22:06:31,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 700 transitions. [2023-11-06 22:06:31,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 700 transitions. [2023-11-06 22:06:31,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:31,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 700 transitions. [2023-11-06 22:06:31,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.66666666666667) internal successors, (700), 6 states have internal predecessors, (700), 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 22:06:31,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 262.0) internal successors, (1834), 7 states have internal predecessors, (1834), 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 22:06:31,881 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 262.0) internal successors, (1834), 7 states have internal predecessors, (1834), 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 22:06:31,881 INFO L175 Difference]: Start difference. First operand has 58 places, 71 transitions, 566 flow. Second operand 6 states and 700 transitions. [2023-11-06 22:06:31,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 193 transitions, 1929 flow [2023-11-06 22:06:31,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 193 transitions, 1785 flow, removed 51 selfloop flow, removed 3 redundant places. [2023-11-06 22:06:31,899 INFO L231 Difference]: Finished difference. Result has 63 places, 71 transitions, 545 flow [2023-11-06 22:06:31,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=545, PETRI_PLACES=63, PETRI_TRANSITIONS=71} [2023-11-06 22:06:31,900 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2023-11-06 22:06:31,900 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 71 transitions, 545 flow [2023-11-06 22:06:31,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 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 22:06:31,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:31,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:31,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:06:31,901 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:31,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash -823106103, now seen corresponding path program 1 times [2023-11-06 22:06:31,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:31,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495157275] [2023-11-06 22:06:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:31,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:33,404 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 22:06:33,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:33,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495157275] [2023-11-06 22:06:33,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495157275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:33,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:33,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:06:33,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767309094] [2023-11-06 22:06:33,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:33,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:06:33,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:33,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:06:33,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:06:33,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 262 [2023-11-06 22:06:33,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 71 transitions, 545 flow. Second operand has 8 states, 8 states have (on average 106.25) internal successors, (850), 8 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 22:06:33,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:33,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 262 [2023-11-06 22:06:33,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:34,178 INFO L124 PetriNetUnfolderBase]: 854/1519 cut-off events. [2023-11-06 22:06:34,178 INFO L125 PetriNetUnfolderBase]: For 5964/5964 co-relation queries the response was YES. [2023-11-06 22:06:34,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7271 conditions, 1519 events. 854/1519 cut-off events. For 5964/5964 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7799 event pairs, 142 based on Foata normal form. 13/1531 useless extension candidates. Maximal degree in co-relation 7253. Up to 651 conditions per place. [2023-11-06 22:06:34,186 INFO L140 encePairwiseOnDemand]: 251/262 looper letters, 57 selfloop transitions, 12 changer transitions 50/120 dead transitions. [2023-11-06 22:06:34,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 120 transitions, 1203 flow [2023-11-06 22:06:34,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:06:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:06:34,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 800 transitions. [2023-11-06 22:06:34,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4362050163576881 [2023-11-06 22:06:34,191 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 800 transitions. [2023-11-06 22:06:34,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 800 transitions. [2023-11-06 22:06:34,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:34,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 800 transitions. [2023-11-06 22:06:34,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.28571428571429) internal successors, (800), 7 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:06:34,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 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 22:06:34,200 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 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 22:06:34,201 INFO L175 Difference]: Start difference. First operand has 63 places, 71 transitions, 545 flow. Second operand 7 states and 800 transitions. [2023-11-06 22:06:34,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 120 transitions, 1203 flow [2023-11-06 22:06:34,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 120 transitions, 1089 flow, removed 44 selfloop flow, removed 4 redundant places. [2023-11-06 22:06:34,219 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 382 flow [2023-11-06 22:06:34,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=382, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2023-11-06 22:06:34,222 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 22 predicate places. [2023-11-06 22:06:34,222 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 382 flow [2023-11-06 22:06:34,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 106.25) internal successors, (850), 8 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 22:06:34,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:34,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:34,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:06:34,223 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:34,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:34,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1472869873, now seen corresponding path program 2 times [2023-11-06 22:06:34,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:34,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104740652] [2023-11-06 22:06:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:34,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:34,535 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 22:06:34,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:34,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104740652] [2023-11-06 22:06:34,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104740652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:34,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:34,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:06:34,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099801770] [2023-11-06 22:06:34,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:34,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:06:34,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:34,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:06:34,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:06:34,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 262 [2023-11-06 22:06:34,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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 22:06:34,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:34,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 262 [2023-11-06 22:06:34,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:34,824 INFO L124 PetriNetUnfolderBase]: 211/398 cut-off events. [2023-11-06 22:06:34,824 INFO L125 PetriNetUnfolderBase]: For 1856/1878 co-relation queries the response was YES. [2023-11-06 22:06:34,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 398 events. 211/398 cut-off events. For 1856/1878 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1507 event pairs, 48 based on Foata normal form. 14/407 useless extension candidates. Maximal degree in co-relation 2002. Up to 192 conditions per place. [2023-11-06 22:06:34,827 INFO L140 encePairwiseOnDemand]: 256/262 looper letters, 65 selfloop transitions, 10 changer transitions 14/90 dead transitions. [2023-11-06 22:06:34,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 90 transitions, 951 flow [2023-11-06 22:06:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:06:34,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:06:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 778 transitions. [2023-11-06 22:06:34,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42420937840785167 [2023-11-06 22:06:34,832 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 778 transitions. [2023-11-06 22:06:34,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 778 transitions. [2023-11-06 22:06:34,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:34,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 778 transitions. [2023-11-06 22:06:34,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 111.14285714285714) internal successors, (778), 7 states have internal predecessors, (778), 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 22:06:34,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 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 22:06:34,840 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 262.0) internal successors, (2096), 8 states have internal predecessors, (2096), 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 22:06:34,841 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 382 flow. Second operand 7 states and 778 transitions. [2023-11-06 22:06:34,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 90 transitions, 951 flow [2023-11-06 22:06:34,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 90 transitions, 694 flow, removed 54 selfloop flow, removed 17 redundant places. [2023-11-06 22:06:34,849 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 268 flow [2023-11-06 22:06:34,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=268, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2023-11-06 22:06:34,850 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2023-11-06 22:06:34,850 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 268 flow [2023-11-06 22:06:34,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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 22:06:34,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:34,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:34,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:06:34,851 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:34,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:34,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1726167200, now seen corresponding path program 1 times [2023-11-06 22:06:34,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:34,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076397882] [2023-11-06 22:06:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:34,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:35,179 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 22:06:35,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:35,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076397882] [2023-11-06 22:06:35,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076397882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:35,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:35,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:06:35,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382900316] [2023-11-06 22:06:35,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:35,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:06:35,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:35,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:06:35,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:06:35,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 262 [2023-11-06 22:06:35,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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 22:06:35,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:35,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 262 [2023-11-06 22:06:35,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:35,425 INFO L124 PetriNetUnfolderBase]: 277/510 cut-off events. [2023-11-06 22:06:35,426 INFO L125 PetriNetUnfolderBase]: For 1168/1168 co-relation queries the response was YES. [2023-11-06 22:06:35,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2146 conditions, 510 events. 277/510 cut-off events. For 1168/1168 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2113 event pairs, 16 based on Foata normal form. 1/511 useless extension candidates. Maximal degree in co-relation 2132. Up to 358 conditions per place. [2023-11-06 22:06:35,429 INFO L140 encePairwiseOnDemand]: 259/262 looper letters, 39 selfloop transitions, 1 changer transitions 38/78 dead transitions. [2023-11-06 22:06:35,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 655 flow [2023-11-06 22:06:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:06:35,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:06:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2023-11-06 22:06:35,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4532442748091603 [2023-11-06 22:06:35,432 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 475 transitions. [2023-11-06 22:06:35,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 475 transitions. [2023-11-06 22:06:35,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:35,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 475 transitions. [2023-11-06 22:06:35,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 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 22:06:35,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 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 22:06:35,438 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 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 22:06:35,438 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 268 flow. Second operand 4 states and 475 transitions. [2023-11-06 22:06:35,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 655 flow [2023-11-06 22:06:35,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 78 transitions, 575 flow, removed 24 selfloop flow, removed 6 redundant places. [2023-11-06 22:06:35,444 INFO L231 Difference]: Finished difference. Result has 52 places, 34 transitions, 177 flow [2023-11-06 22:06:35,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=52, PETRI_TRANSITIONS=34} [2023-11-06 22:06:35,446 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2023-11-06 22:06:35,446 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 34 transitions, 177 flow [2023-11-06 22:06:35,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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 22:06:35,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:35,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:35,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:06:35,448 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:35,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:35,448 INFO L85 PathProgramCache]: Analyzing trace with hash 471695832, now seen corresponding path program 2 times [2023-11-06 22:06:35,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:35,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134556524] [2023-11-06 22:06:35,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:35,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:38,595 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 22:06:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134556524] [2023-11-06 22:06:38,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134556524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:38,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:38,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:06:38,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524889254] [2023-11-06 22:06:38,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:38,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:06:38,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:38,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:06:38,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:06:38,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 262 [2023-11-06 22:06:38,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 34 transitions, 177 flow. Second operand has 10 states, 10 states have (on average 107.3) internal successors, (1073), 10 states have internal predecessors, (1073), 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 22:06:38,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:38,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 262 [2023-11-06 22:06:38,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:39,296 INFO L124 PetriNetUnfolderBase]: 227/477 cut-off events. [2023-11-06 22:06:39,296 INFO L125 PetriNetUnfolderBase]: For 897/897 co-relation queries the response was YES. [2023-11-06 22:06:39,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1940 conditions, 477 events. 227/477 cut-off events. For 897/897 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2040 event pairs, 56 based on Foata normal form. 2/479 useless extension candidates. Maximal degree in co-relation 1927. Up to 188 conditions per place. [2023-11-06 22:06:39,299 INFO L140 encePairwiseOnDemand]: 255/262 looper letters, 30 selfloop transitions, 5 changer transitions 44/80 dead transitions. [2023-11-06 22:06:39,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 80 transitions, 607 flow [2023-11-06 22:06:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:06:39,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:06:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 897 transitions. [2023-11-06 22:06:39,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4279580152671756 [2023-11-06 22:06:39,304 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 897 transitions. [2023-11-06 22:06:39,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 897 transitions. [2023-11-06 22:06:39,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:39,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 897 transitions. [2023-11-06 22:06:39,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 112.125) internal successors, (897), 8 states have internal predecessors, (897), 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 22:06:39,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 262.0) internal successors, (2358), 9 states have internal predecessors, (2358), 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 22:06:39,313 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 262.0) internal successors, (2358), 9 states have internal predecessors, (2358), 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 22:06:39,313 INFO L175 Difference]: Start difference. First operand has 52 places, 34 transitions, 177 flow. Second operand 8 states and 897 transitions. [2023-11-06 22:06:39,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 80 transitions, 607 flow [2023-11-06 22:06:39,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 596 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-06 22:06:39,318 INFO L231 Difference]: Finished difference. Result has 57 places, 32 transitions, 178 flow [2023-11-06 22:06:39,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=178, PETRI_PLACES=57, PETRI_TRANSITIONS=32} [2023-11-06 22:06:39,319 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2023-11-06 22:06:39,319 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 32 transitions, 178 flow [2023-11-06 22:06:39,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.3) internal successors, (1073), 10 states have internal predecessors, (1073), 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 22:06:39,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:39,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:06:39,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:06:39,321 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-06 22:06:39,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash -780734668, now seen corresponding path program 3 times [2023-11-06 22:06:39,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:39,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351341481] [2023-11-06 22:06:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:39,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:41,701 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 22:06:41,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:41,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351341481] [2023-11-06 22:06:41,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351341481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:41,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:41,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:06:41,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593700983] [2023-11-06 22:06:41,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:41,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:06:41,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:06:41,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:06:41,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 262 [2023-11-06 22:06:41,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 32 transitions, 178 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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 22:06:41,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:41,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 262 [2023-11-06 22:06:41,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:06:42,320 INFO L124 PetriNetUnfolderBase]: 124/270 cut-off events. [2023-11-06 22:06:42,320 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2023-11-06 22:06:42,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 270 events. 124/270 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 986 event pairs, 34 based on Foata normal form. 1/271 useless extension candidates. Maximal degree in co-relation 1144. Up to 132 conditions per place. [2023-11-06 22:06:42,322 INFO L140 encePairwiseOnDemand]: 253/262 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2023-11-06 22:06:42,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 55 transitions, 430 flow [2023-11-06 22:06:42,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:06:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:06:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 973 transitions. [2023-11-06 22:06:42,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.412637828668363 [2023-11-06 22:06:42,328 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 973 transitions. [2023-11-06 22:06:42,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 973 transitions. [2023-11-06 22:06:42,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:06:42,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 973 transitions. [2023-11-06 22:06:42,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.11111111111111) internal successors, (973), 9 states have internal predecessors, (973), 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 22:06:42,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 262.0) internal successors, (2620), 10 states have internal predecessors, (2620), 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 22:06:42,339 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 262.0) internal successors, (2620), 10 states have internal predecessors, (2620), 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 22:06:42,340 INFO L175 Difference]: Start difference. First operand has 57 places, 32 transitions, 178 flow. Second operand 9 states and 973 transitions. [2023-11-06 22:06:42,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 55 transitions, 430 flow [2023-11-06 22:06:42,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 55 transitions, 408 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-11-06 22:06:42,343 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2023-11-06 22:06:42,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2023-11-06 22:06:42,344 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2023-11-06 22:06:42,344 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2023-11-06 22:06:42,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 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 22:06:42,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-11-06 22:06:42,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2023-11-06 22:06:42,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-06 22:06:42,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-06 22:06:42,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-11-06 22:06:42,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-11-06 22:06:42,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-06 22:06:42,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 13 remaining) [2023-11-06 22:06:42,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-11-06 22:06:42,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-11-06 22:06:42,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-11-06 22:06:42,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-11-06 22:06:42,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-06 22:06:42,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:06:42,352 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:06:42,359 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:06:42,359 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:06:42,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:06:42 BasicIcfg [2023-11-06 22:06:42,363 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:06:42,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:06:42,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:06:42,364 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:06:42,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:08" (3/4) ... [2023-11-06 22:06:42,366 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:06:42,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 22:06:42,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 22:06:42,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-06 22:06:42,377 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2023-11-06 22:06:42,378 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:06:42,378 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:06:42,379 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:06:42,446 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:06:42,447 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:06:42,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:06:42,448 INFO L158 Benchmark]: Toolchain (without parser) took 35906.58ms. Allocated memory was 180.4MB in the beginning and 660.6MB in the end (delta: 480.2MB). Free memory was 146.0MB in the beginning and 242.4MB in the end (delta: -96.4MB). Peak memory consumption was 385.2MB. Max. memory is 16.1GB. [2023-11-06 22:06:42,448 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:06:42,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 760.79ms. Allocated memory is still 180.4MB. Free memory was 146.0MB in the beginning and 118.1MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-06 22:06:42,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.54ms. Allocated memory is still 180.4MB. Free memory was 118.1MB in the beginning and 114.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:06:42,450 INFO L158 Benchmark]: Boogie Preprocessor took 93.74ms. Allocated memory is still 180.4MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:06:42,451 INFO L158 Benchmark]: RCFGBuilder took 1203.85ms. Allocated memory is still 180.4MB. Free memory was 111.8MB in the beginning and 133.4MB in the end (delta: -21.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2023-11-06 22:06:42,451 INFO L158 Benchmark]: TraceAbstraction took 33638.44ms. Allocated memory was 180.4MB in the beginning and 660.6MB in the end (delta: 480.2MB). Free memory was 133.1MB in the beginning and 246.6MB in the end (delta: -113.6MB). Peak memory consumption was 366.7MB. Max. memory is 16.1GB. [2023-11-06 22:06:42,452 INFO L158 Benchmark]: Witness Printer took 83.66ms. Allocated memory is still 660.6MB. Free memory was 246.6MB in the beginning and 242.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:06:42,454 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 123.7MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 760.79ms. Allocated memory is still 180.4MB. Free memory was 146.0MB in the beginning and 118.1MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.54ms. Allocated memory is still 180.4MB. Free memory was 118.1MB in the beginning and 114.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.74ms. Allocated memory is still 180.4MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1203.85ms. Allocated memory is still 180.4MB. Free memory was 111.8MB in the beginning and 133.4MB in the end (delta: -21.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * TraceAbstraction took 33638.44ms. Allocated memory was 180.4MB in the beginning and 660.6MB in the end (delta: 480.2MB). Free memory was 133.1MB in the beginning and 246.6MB in the end (delta: -113.6MB). Peak memory consumption was 366.7MB. Max. memory is 16.1GB. * Witness Printer took 83.66ms. Allocated memory is still 660.6MB. Free memory was 246.6MB in the beginning and 242.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4s, 134 PlacesBefore, 43 PlacesAfterwards, 127 TransitionsBefore, 33 TransitionsAfterwards, 2898 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 132 TotalNumberOfCompositions, 8897 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2737, independent: 2498, independent conditional: 0, independent unconditional: 2498, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1493, independent: 1443, independent conditional: 0, independent unconditional: 1443, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2737, independent: 1055, independent conditional: 0, independent unconditional: 1055, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 1493, unknown conditional: 0, unknown unconditional: 1493] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -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: 866]: 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 7 procedures, 159 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 33.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 732 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 633 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 354 mSDsCounter, 305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2286 IncrementalHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 305 mSolverCounterUnsat, 22 mSDtfsCounter, 2286 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=566occurred in iteration=8, InterpolantAutomatonStates: 80, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 2020 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:06:42,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e19b0d8c-0fdb-4539-ac38-b47c4c9bc605/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