./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:22,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:22,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:30:22,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:22,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:22,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:22,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:22,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:22,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:30:22,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:30:22,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:22,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:22,961 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:22,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:22,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:30:22,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:22,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:30:22,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:22,965 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:30:22,965 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:30:22,966 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:30:22,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:30:22,967 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:30:22,967 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:30:22,968 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:30:22,968 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:22,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:22,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:22,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:30:22,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:22,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:22,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:30:22,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:30:22,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:30:22,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:30:22,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:30:22,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:30:22,974 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:30:22,974 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_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2023-11-12 02:30:23,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:23,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:23,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:23,382 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:23,383 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:23,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-12 02:30:26,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:26,910 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:26,913 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-12 02:30:26,935 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/data/25e927a05/d069a476d63847dd9d5fdebb48f58904/FLAG89a296182 [2023-11-12 02:30:26,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/data/25e927a05/d069a476d63847dd9d5fdebb48f58904 [2023-11-12 02:30:26,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:26,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:26,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:26,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:26,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:26,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:26" (1/1) ... [2023-11-12 02:30:26,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb72adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:26, skipping insertion in model container [2023-11-12 02:30:26,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:26" (1/1) ... [2023-11-12 02:30:27,039 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:27,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:27,444 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:30:27,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:27,559 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:30:27,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27 WrapperNode [2023-11-12 02:30:27,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:27,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:27,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:30:27,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:30:27,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,638 INFO L138 Inliner]: procedures = 165, calls = 43, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 152 [2023-11-12 02:30:27,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:27,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:30:27,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:30:27,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:30:27,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:30:27,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:30:27,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:30:27,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:30:27,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (1/1) ... [2023-11-12 02:30:27,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:27,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:27,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:30:27,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:30:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:30:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:30:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:30:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:30:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:30:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:30:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:30:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:30:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:30:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:30:27,826 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:30:28,057 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:30:28,060 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:30:28,420 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:28,435 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:28,435 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:30:28,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:28 BoogieIcfgContainer [2023-11-12 02:30:28,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:28,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:30:28,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:30:28,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:30:28,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:30:26" (1/3) ... [2023-11-12 02:30:28,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae54d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:28, skipping insertion in model container [2023-11-12 02:30:28,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:27" (2/3) ... [2023-11-12 02:30:28,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae54d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:28, skipping insertion in model container [2023-11-12 02:30:28,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:28" (3/3) ... [2023-11-12 02:30:28,452 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-11-12 02:30:28,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:30:28,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:30:28,485 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:30:28,616 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:30:28,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 205 transitions, 414 flow [2023-11-12 02:30:28,779 INFO L124 PetriNetUnfolderBase]: 11/211 cut-off events. [2023-11-12 02:30:28,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:28,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 211 events. 11/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 252 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2023-11-12 02:30:28,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 205 transitions, 414 flow [2023-11-12 02:30:28,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 204 transitions, 411 flow [2023-11-12 02:30:28,810 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:30:28,822 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 204 transitions, 411 flow [2023-11-12 02:30:28,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 204 transitions, 411 flow [2023-11-12 02:30:28,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 204 transitions, 411 flow [2023-11-12 02:30:28,894 INFO L124 PetriNetUnfolderBase]: 11/211 cut-off events. [2023-11-12 02:30:28,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:28,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 211 events. 11/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 252 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2023-11-12 02:30:28,907 INFO L119 LiptonReduction]: Number of co-enabled transitions 11424 [2023-11-12 02:30:37,641 INFO L134 LiptonReduction]: Checked pairs total: 19829 [2023-11-12 02:30:37,643 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-11-12 02:30:37,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:30:37,667 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;@22dd8a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:30:37,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-12 02:30:37,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:30:37,675 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:30:37,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:37,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:37,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:30:37,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:37,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:37,684 INFO L85 PathProgramCache]: Analyzing trace with hash 824, now seen corresponding path program 1 times [2023-11-12 02:30:37,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:37,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060512782] [2023-11-12 02:30:37,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:37,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:37,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:37,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060512782] [2023-11-12 02:30:37,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060512782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:37,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:37,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:30:37,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277430674] [2023-11-12 02:30:37,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:37,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:30:37,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:37,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:30:37,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:30:37,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 432 [2023-11-12 02:30:37,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 41 transitions, 85 flow. Second operand has 2 states, 2 states have (on average 191.5) internal successors, (383), 2 states have internal predecessors, (383), 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) [2023-11-12 02:30:37,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:37,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 432 [2023-11-12 02:30:37,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:38,013 INFO L124 PetriNetUnfolderBase]: 161/401 cut-off events. [2023-11-12 02:30:38,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:38,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 401 events. 161/401 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1715 event pairs, 150 based on Foata normal form. 22/351 useless extension candidates. Maximal degree in co-relation 732. Up to 341 conditions per place. [2023-11-12 02:30:38,021 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 29 selfloop transitions, 0 changer transitions 0/34 dead transitions. [2023-11-12 02:30:38,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 129 flow [2023-11-12 02:30:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:30:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:30:38,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 417 transitions. [2023-11-12 02:30:38,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4826388888888889 [2023-11-12 02:30:38,048 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 417 transitions. [2023-11-12 02:30:38,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 417 transitions. [2023-11-12 02:30:38,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:38,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 417 transitions. [2023-11-12 02:30:38,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 208.5) internal successors, (417), 2 states have internal predecessors, (417), 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) [2023-11-12 02:30:38,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 432.0) internal successors, (1296), 3 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:38,068 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 432.0) internal successors, (1296), 3 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:38,070 INFO L175 Difference]: Start difference. First operand has 39 places, 41 transitions, 85 flow. Second operand 2 states and 417 transitions. [2023-11-12 02:30:38,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 129 flow [2023-11-12 02:30:38,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:30:38,077 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 70 flow [2023-11-12 02:30:38,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2023-11-12 02:30:38,087 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2023-11-12 02:30:38,087 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 70 flow [2023-11-12 02:30:38,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 191.5) internal successors, (383), 2 states have internal predecessors, (383), 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) [2023-11-12 02:30:38,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:38,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-12 02:30:38,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:30:38,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:38,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:38,091 INFO L85 PathProgramCache]: Analyzing trace with hash 25792, now seen corresponding path program 1 times [2023-11-12 02:30:38,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:38,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183501752] [2023-11-12 02:30:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:38,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:38,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:38,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183501752] [2023-11-12 02:30:38,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183501752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:38,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:38,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:30:38,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146648550] [2023-11-12 02:30:38,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:38,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:38,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:38,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:38,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:38,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 432 [2023-11-12 02:30:38,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 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) [2023-11-12 02:30:38,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:38,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 432 [2023-11-12 02:30:38,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:38,407 INFO L124 PetriNetUnfolderBase]: 177/416 cut-off events. [2023-11-12 02:30:38,407 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:30:38,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 416 events. 177/416 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1675 event pairs, 150 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 790. Up to 339 conditions per place. [2023-11-12 02:30:38,410 INFO L140 encePairwiseOnDemand]: 429/432 looper letters, 38 selfloop transitions, 1 changer transitions 8/51 dead transitions. [2023-11-12 02:30:38,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 51 transitions, 198 flow [2023-11-12 02:30:38,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:38,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:30:38,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2023-11-12 02:30:38,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4652777777777778 [2023-11-12 02:30:38,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 603 transitions. [2023-11-12 02:30:38,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 603 transitions. [2023-11-12 02:30:38,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:38,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 603 transitions. [2023-11-12 02:30:38,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 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) [2023-11-12 02:30:38,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 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) [2023-11-12 02:30:38,423 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 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) [2023-11-12 02:30:38,423 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 70 flow. Second operand 3 states and 603 transitions. [2023-11-12 02:30:38,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 51 transitions, 198 flow [2023-11-12 02:30:38,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:30:38,425 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 73 flow [2023-11-12 02:30:38,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2023-11-12 02:30:38,427 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-11-12 02:30:38,427 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 73 flow [2023-11-12 02:30:38,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 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) [2023-11-12 02:30:38,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:38,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:30:38,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:30:38,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:38,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:38,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1690305327, now seen corresponding path program 1 times [2023-11-12 02:30:38,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:38,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302303644] [2023-11-12 02:30:38,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:38,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:38,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:38,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302303644] [2023-11-12 02:30:38,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302303644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:38,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:38,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:30:38,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259374472] [2023-11-12 02:30:38,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:38,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:38,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:38,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:38,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:38,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 432 [2023-11-12 02:30:38,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 185.5) internal successors, (742), 4 states have internal predecessors, (742), 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) [2023-11-12 02:30:38,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:38,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 432 [2023-11-12 02:30:38,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:38,935 INFO L124 PetriNetUnfolderBase]: 179/443 cut-off events. [2023-11-12 02:30:38,936 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-12 02:30:38,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 861 conditions, 443 events. 179/443 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1968 event pairs, 21 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 856. Up to 256 conditions per place. [2023-11-12 02:30:38,939 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 53 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2023-11-12 02:30:38,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 62 transitions, 247 flow [2023-11-12 02:30:38,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:30:38,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:30:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 982 transitions. [2023-11-12 02:30:38,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4546296296296296 [2023-11-12 02:30:38,944 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 982 transitions. [2023-11-12 02:30:38,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 982 transitions. [2023-11-12 02:30:38,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:38,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 982 transitions. [2023-11-12 02:30:38,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 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) [2023-11-12 02:30:38,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 432.0) internal successors, (2592), 6 states have internal predecessors, (2592), 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) [2023-11-12 02:30:38,957 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 432.0) internal successors, (2592), 6 states have internal predecessors, (2592), 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) [2023-11-12 02:30:38,957 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 73 flow. Second operand 5 states and 982 transitions. [2023-11-12 02:30:38,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 62 transitions, 247 flow [2023-11-12 02:30:38,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 243 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-12 02:30:38,962 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 104 flow [2023-11-12 02:30:38,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-11-12 02:30:38,963 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 5 predicate places. [2023-11-12 02:30:38,964 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 104 flow [2023-11-12 02:30:38,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 185.5) internal successors, (742), 4 states have internal predecessors, (742), 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) [2023-11-12 02:30:38,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:38,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:38,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:30:38,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:38,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:38,966 INFO L85 PathProgramCache]: Analyzing trace with hash -885834744, now seen corresponding path program 1 times [2023-11-12 02:30:38,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:38,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948095420] [2023-11-12 02:30:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:38,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:39,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948095420] [2023-11-12 02:30:39,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948095420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:39,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:39,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:39,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476559356] [2023-11-12 02:30:39,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:39,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:30:39,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:30:39,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:30:39,283 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 432 [2023-11-12 02:30:39,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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) [2023-11-12 02:30:39,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:39,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 432 [2023-11-12 02:30:39,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:39,635 INFO L124 PetriNetUnfolderBase]: 221/546 cut-off events. [2023-11-12 02:30:39,635 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-12 02:30:39,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 546 events. 221/546 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2647 event pairs, 69 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 1165. Up to 231 conditions per place. [2023-11-12 02:30:39,640 INFO L140 encePairwiseOnDemand]: 423/432 looper letters, 70 selfloop transitions, 22 changer transitions 1/97 dead transitions. [2023-11-12 02:30:39,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 97 transitions, 431 flow [2023-11-12 02:30:39,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:30:39,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-12 02:30:39,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2196 transitions. [2023-11-12 02:30:39,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4236111111111111 [2023-11-12 02:30:39,649 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2196 transitions. [2023-11-12 02:30:39,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2196 transitions. [2023-11-12 02:30:39,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:39,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2196 transitions. [2023-11-12 02:30:39,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 183.0) internal successors, (2196), 12 states have internal predecessors, (2196), 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) [2023-11-12 02:30:39,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 432.0) internal successors, (5616), 13 states have internal predecessors, (5616), 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) [2023-11-12 02:30:39,676 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 432.0) internal successors, (5616), 13 states have internal predecessors, (5616), 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) [2023-11-12 02:30:39,676 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 104 flow. Second operand 12 states and 2196 transitions. [2023-11-12 02:30:39,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 97 transitions, 431 flow [2023-11-12 02:30:39,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 97 transitions, 426 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:30:39,683 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 212 flow [2023-11-12 02:30:39,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=212, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2023-11-12 02:30:39,685 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-11-12 02:30:39,685 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 212 flow [2023-11-12 02:30:39,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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) [2023-11-12 02:30:39,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:39,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:39,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:30:39,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:39,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1757901382, now seen corresponding path program 1 times [2023-11-12 02:30:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:39,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890798559] [2023-11-12 02:30:39,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:39,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:39,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890798559] [2023-11-12 02:30:39,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890798559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:39,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:39,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:39,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693074429] [2023-11-12 02:30:39,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:39,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:30:39,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:39,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:30:39,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:30:39,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 432 [2023-11-12 02:30:39,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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) [2023-11-12 02:30:39,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:39,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 432 [2023-11-12 02:30:39,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:40,022 INFO L124 PetriNetUnfolderBase]: 198/518 cut-off events. [2023-11-12 02:30:40,022 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2023-11-12 02:30:40,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1244 conditions, 518 events. 198/518 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2657 event pairs, 75 based on Foata normal form. 16/490 useless extension candidates. Maximal degree in co-relation 1234. Up to 304 conditions per place. [2023-11-12 02:30:40,027 INFO L140 encePairwiseOnDemand]: 422/432 looper letters, 58 selfloop transitions, 14 changer transitions 0/75 dead transitions. [2023-11-12 02:30:40,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 75 transitions, 432 flow [2023-11-12 02:30:40,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:30:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:30:40,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-11-12 02:30:40,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46141975308641975 [2023-11-12 02:30:40,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-11-12 02:30:40,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-11-12 02:30:40,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:40,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-11-12 02:30:40,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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) [2023-11-12 02:30:40,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 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) [2023-11-12 02:30:40,038 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 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) [2023-11-12 02:30:40,038 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 212 flow. Second operand 3 states and 598 transitions. [2023-11-12 02:30:40,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 75 transitions, 432 flow [2023-11-12 02:30:40,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 75 transitions, 394 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-11-12 02:30:40,043 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 245 flow [2023-11-12 02:30:40,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-11-12 02:30:40,045 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 15 predicate places. [2023-11-12 02:30:40,045 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 245 flow [2023-11-12 02:30:40,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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) [2023-11-12 02:30:40,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:40,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:40,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:30:40,046 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:40,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:40,047 INFO L85 PathProgramCache]: Analyzing trace with hash -883598793, now seen corresponding path program 1 times [2023-11-12 02:30:40,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:40,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502990453] [2023-11-12 02:30:40,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:40,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:40,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:40,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502990453] [2023-11-12 02:30:40,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502990453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:40,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:40,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:40,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104957051] [2023-11-12 02:30:40,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:40,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:30:40,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:40,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:30:40,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:30:40,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 432 [2023-11-12 02:30:40,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 245 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2023-11-12 02:30:40,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:40,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 432 [2023-11-12 02:30:40,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:40,533 INFO L124 PetriNetUnfolderBase]: 191/532 cut-off events. [2023-11-12 02:30:40,533 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2023-11-12 02:30:40,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 532 events. 191/532 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2881 event pairs, 69 based on Foata normal form. 11/502 useless extension candidates. Maximal degree in co-relation 1463. Up to 211 conditions per place. [2023-11-12 02:30:40,538 INFO L140 encePairwiseOnDemand]: 423/432 looper letters, 87 selfloop transitions, 13 changer transitions 2/109 dead transitions. [2023-11-12 02:30:40,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 109 transitions, 664 flow [2023-11-12 02:30:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:30:40,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:30:40,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1687 transitions. [2023-11-12 02:30:40,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4338991769547325 [2023-11-12 02:30:40,546 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1687 transitions. [2023-11-12 02:30:40,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1687 transitions. [2023-11-12 02:30:40,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:40,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1687 transitions. [2023-11-12 02:30:40,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 187.44444444444446) internal successors, (1687), 9 states have internal predecessors, (1687), 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) [2023-11-12 02:30:40,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 432.0) internal successors, (4320), 10 states have internal predecessors, (4320), 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) [2023-11-12 02:30:40,562 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 432.0) internal successors, (4320), 10 states have internal predecessors, (4320), 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) [2023-11-12 02:30:40,562 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 245 flow. Second operand 9 states and 1687 transitions. [2023-11-12 02:30:40,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 109 transitions, 664 flow [2023-11-12 02:30:40,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 109 transitions, 634 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:30:40,568 INFO L231 Difference]: Finished difference. Result has 63 places, 62 transitions, 306 flow [2023-11-12 02:30:40,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=306, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2023-11-12 02:30:40,569 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 24 predicate places. [2023-11-12 02:30:40,569 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 306 flow [2023-11-12 02:30:40,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 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) [2023-11-12 02:30:40,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:40,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:40,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:30:40,571 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:40,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:40,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1476844855, now seen corresponding path program 1 times [2023-11-12 02:30:40,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:40,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460132988] [2023-11-12 02:30:40,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:40,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:40,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:40,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:40,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460132988] [2023-11-12 02:30:40,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460132988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:40,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:40,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:40,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259092674] [2023-11-12 02:30:40,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:40,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:30:40,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:40,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:30:40,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:40,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 432 [2023-11-12 02:30:40,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 306 flow. Second operand has 5 states, 5 states have (on average 182.4) internal successors, (912), 5 states have internal predecessors, (912), 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) [2023-11-12 02:30:40,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:40,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 432 [2023-11-12 02:30:40,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:41,089 INFO L124 PetriNetUnfolderBase]: 213/561 cut-off events. [2023-11-12 02:30:41,089 INFO L125 PetriNetUnfolderBase]: For 305/305 co-relation queries the response was YES. [2023-11-12 02:30:41,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 561 events. 213/561 cut-off events. For 305/305 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3075 event pairs, 104 based on Foata normal form. 1/520 useless extension candidates. Maximal degree in co-relation 1655. Up to 352 conditions per place. [2023-11-12 02:30:41,094 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 77 selfloop transitions, 12 changer transitions 0/95 dead transitions. [2023-11-12 02:30:41,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 95 transitions, 628 flow [2023-11-12 02:30:41,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:30:41,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:30:41,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 961 transitions. [2023-11-12 02:30:41,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4449074074074074 [2023-11-12 02:30:41,099 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 961 transitions. [2023-11-12 02:30:41,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 961 transitions. [2023-11-12 02:30:41,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:41,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 961 transitions. [2023-11-12 02:30:41,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 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) [2023-11-12 02:30:41,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 432.0) internal successors, (2592), 6 states have internal predecessors, (2592), 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) [2023-11-12 02:30:41,109 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 432.0) internal successors, (2592), 6 states have internal predecessors, (2592), 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) [2023-11-12 02:30:41,110 INFO L175 Difference]: Start difference. First operand has 63 places, 62 transitions, 306 flow. Second operand 5 states and 961 transitions. [2023-11-12 02:30:41,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 95 transitions, 628 flow [2023-11-12 02:30:41,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 95 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:30:41,116 INFO L231 Difference]: Finished difference. Result has 68 places, 64 transitions, 346 flow [2023-11-12 02:30:41,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=346, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2023-11-12 02:30:41,117 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 29 predicate places. [2023-11-12 02:30:41,117 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 346 flow [2023-11-12 02:30:41,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 182.4) internal successors, (912), 5 states have internal predecessors, (912), 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) [2023-11-12 02:30:41,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:41,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:41,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:30:41,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:41,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:41,119 INFO L85 PathProgramCache]: Analyzing trace with hash 151175494, now seen corresponding path program 1 times [2023-11-12 02:30:41,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:41,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536926498] [2023-11-12 02:30:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:41,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:41,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:41,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536926498] [2023-11-12 02:30:41,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536926498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:41,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:41,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:41,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156779606] [2023-11-12 02:30:41,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:41,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:30:41,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:41,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:30:41,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:41,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 432 [2023-11-12 02:30:41,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 184.6) internal successors, (923), 5 states have internal predecessors, (923), 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) [2023-11-12 02:30:41,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:41,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 432 [2023-11-12 02:30:41,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:41,492 INFO L124 PetriNetUnfolderBase]: 181/502 cut-off events. [2023-11-12 02:30:41,492 INFO L125 PetriNetUnfolderBase]: For 335/337 co-relation queries the response was YES. [2023-11-12 02:30:41,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 502 events. 181/502 cut-off events. For 335/337 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2643 event pairs, 77 based on Foata normal form. 7/476 useless extension candidates. Maximal degree in co-relation 1541. Up to 210 conditions per place. [2023-11-12 02:30:41,497 INFO L140 encePairwiseOnDemand]: 424/432 looper letters, 79 selfloop transitions, 13 changer transitions 0/100 dead transitions. [2023-11-12 02:30:41,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 100 transitions, 689 flow [2023-11-12 02:30:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:30:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:30:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1346 transitions. [2023-11-12 02:30:41,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4451058201058201 [2023-11-12 02:30:41,503 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1346 transitions. [2023-11-12 02:30:41,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1346 transitions. [2023-11-12 02:30:41,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:41,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1346 transitions. [2023-11-12 02:30:41,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 192.28571428571428) internal successors, (1346), 7 states have internal predecessors, (1346), 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) [2023-11-12 02:30:41,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 432.0) internal successors, (3456), 8 states have internal predecessors, (3456), 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) [2023-11-12 02:30:41,516 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 432.0) internal successors, (3456), 8 states have internal predecessors, (3456), 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) [2023-11-12 02:30:41,517 INFO L175 Difference]: Start difference. First operand has 68 places, 64 transitions, 346 flow. Second operand 7 states and 1346 transitions. [2023-11-12 02:30:41,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 100 transitions, 689 flow [2023-11-12 02:30:41,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 100 transitions, 668 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-12 02:30:41,524 INFO L231 Difference]: Finished difference. Result has 75 places, 68 transitions, 404 flow [2023-11-12 02:30:41,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=404, PETRI_PLACES=75, PETRI_TRANSITIONS=68} [2023-11-12 02:30:41,527 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 36 predicate places. [2023-11-12 02:30:41,528 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 68 transitions, 404 flow [2023-11-12 02:30:41,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 184.6) internal successors, (923), 5 states have internal predecessors, (923), 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) [2023-11-12 02:30:41,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:41,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:41,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:30:41,529 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:41,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:41,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1908644590, now seen corresponding path program 1 times [2023-11-12 02:30:41,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:41,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714244704] [2023-11-12 02:30:41,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:41,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:41,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:41,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:41,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714244704] [2023-11-12 02:30:41,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714244704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:41,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:41,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:30:41,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571755760] [2023-11-12 02:30:41,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:41,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:30:41,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:41,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:30:41,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:30:41,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 432 [2023-11-12 02:30:41,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 68 transitions, 404 flow. Second operand has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2023-11-12 02:30:41,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:41,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 432 [2023-11-12 02:30:41,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:42,066 INFO L124 PetriNetUnfolderBase]: 180/477 cut-off events. [2023-11-12 02:30:42,066 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2023-11-12 02:30:42,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1622 conditions, 477 events. 180/477 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2431 event pairs, 72 based on Foata normal form. 4/448 useless extension candidates. Maximal degree in co-relation 1604. Up to 227 conditions per place. [2023-11-12 02:30:42,071 INFO L140 encePairwiseOnDemand]: 427/432 looper letters, 72 selfloop transitions, 8 changer transitions 3/86 dead transitions. [2023-11-12 02:30:42,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 86 transitions, 663 flow [2023-11-12 02:30:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:30:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 762 transitions. [2023-11-12 02:30:42,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4409722222222222 [2023-11-12 02:30:42,075 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 762 transitions. [2023-11-12 02:30:42,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 762 transitions. [2023-11-12 02:30:42,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:42,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 762 transitions. [2023-11-12 02:30:42,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.5) internal successors, (762), 4 states have internal predecessors, (762), 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) [2023-11-12 02:30:42,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:42,082 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:42,083 INFO L175 Difference]: Start difference. First operand has 75 places, 68 transitions, 404 flow. Second operand 4 states and 762 transitions. [2023-11-12 02:30:42,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 86 transitions, 663 flow [2023-11-12 02:30:42,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 86 transitions, 655 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-12 02:30:42,088 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 397 flow [2023-11-12 02:30:42,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=397, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2023-11-12 02:30:42,089 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 37 predicate places. [2023-11-12 02:30:42,090 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 397 flow [2023-11-12 02:30:42,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2023-11-12 02:30:42,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:42,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:42,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:30:42,091 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:42,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:42,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2143901105, now seen corresponding path program 1 times [2023-11-12 02:30:42,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:42,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848529220] [2023-11-12 02:30:42,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:42,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:42,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:42,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848529220] [2023-11-12 02:30:42,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848529220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:42,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:42,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:42,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332867313] [2023-11-12 02:30:42,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:42,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:30:42,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:42,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:30:42,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:42,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 432 [2023-11-12 02:30:42,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 397 flow. Second operand has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 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) [2023-11-12 02:30:42,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:42,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 432 [2023-11-12 02:30:42,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:42,470 INFO L124 PetriNetUnfolderBase]: 164/442 cut-off events. [2023-11-12 02:30:42,470 INFO L125 PetriNetUnfolderBase]: For 446/446 co-relation queries the response was YES. [2023-11-12 02:30:42,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1523 conditions, 442 events. 164/442 cut-off events. For 446/446 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2163 event pairs, 25 based on Foata normal form. 8/430 useless extension candidates. Maximal degree in co-relation 1505. Up to 150 conditions per place. [2023-11-12 02:30:42,474 INFO L140 encePairwiseOnDemand]: 424/432 looper letters, 76 selfloop transitions, 15 changer transitions 9/106 dead transitions. [2023-11-12 02:30:42,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 106 transitions, 815 flow [2023-11-12 02:30:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:30:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:30:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1524 transitions. [2023-11-12 02:30:42,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4409722222222222 [2023-11-12 02:30:42,482 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1524 transitions. [2023-11-12 02:30:42,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1524 transitions. [2023-11-12 02:30:42,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:42,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1524 transitions. [2023-11-12 02:30:42,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 190.5) internal successors, (1524), 8 states have internal predecessors, (1524), 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) [2023-11-12 02:30:42,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 432.0) internal successors, (3888), 9 states have internal predecessors, (3888), 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) [2023-11-12 02:30:42,495 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 432.0) internal successors, (3888), 9 states have internal predecessors, (3888), 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) [2023-11-12 02:30:42,496 INFO L175 Difference]: Start difference. First operand has 76 places, 65 transitions, 397 flow. Second operand 8 states and 1524 transitions. [2023-11-12 02:30:42,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 106 transitions, 815 flow [2023-11-12 02:30:42,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 106 transitions, 793 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:30:42,502 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 406 flow [2023-11-12 02:30:42,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=406, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2023-11-12 02:30:42,504 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 37 predicate places. [2023-11-12 02:30:42,504 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 406 flow [2023-11-12 02:30:42,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 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) [2023-11-12 02:30:42,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:42,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:42,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:30:42,505 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:42,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:42,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1995524426, now seen corresponding path program 1 times [2023-11-12 02:30:42,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:42,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933317582] [2023-11-12 02:30:42,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:42,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:42,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:42,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:42,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933317582] [2023-11-12 02:30:42,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933317582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:42,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:42,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:30:42,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035926531] [2023-11-12 02:30:42,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:42,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:42,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:42,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:42,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:42,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 432 [2023-11-12 02:30:42,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 406 flow. Second operand has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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) [2023-11-12 02:30:42,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:42,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 432 [2023-11-12 02:30:42,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:42,771 INFO L124 PetriNetUnfolderBase]: 153/416 cut-off events. [2023-11-12 02:30:42,771 INFO L125 PetriNetUnfolderBase]: For 511/511 co-relation queries the response was YES. [2023-11-12 02:30:42,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 416 events. 153/416 cut-off events. For 511/511 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2019 event pairs, 60 based on Foata normal form. 31/427 useless extension candidates. Maximal degree in co-relation 1469. Up to 246 conditions per place. [2023-11-12 02:30:42,774 INFO L140 encePairwiseOnDemand]: 429/432 looper letters, 46 selfloop transitions, 3 changer transitions 28/82 dead transitions. [2023-11-12 02:30:42,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 82 transitions, 652 flow [2023-11-12 02:30:42,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:30:42,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 765 transitions. [2023-11-12 02:30:42,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427083333333333 [2023-11-12 02:30:42,778 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 765 transitions. [2023-11-12 02:30:42,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 765 transitions. [2023-11-12 02:30:42,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:42,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 765 transitions. [2023-11-12 02:30:42,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 191.25) internal successors, (765), 4 states have internal predecessors, (765), 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) [2023-11-12 02:30:42,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:42,785 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:42,786 INFO L175 Difference]: Start difference. First operand has 76 places, 65 transitions, 406 flow. Second operand 4 states and 765 transitions. [2023-11-12 02:30:42,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 82 transitions, 652 flow [2023-11-12 02:30:42,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 82 transitions, 618 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-12 02:30:42,792 INFO L231 Difference]: Finished difference. Result has 73 places, 44 transitions, 260 flow [2023-11-12 02:30:42,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=73, PETRI_TRANSITIONS=44} [2023-11-12 02:30:42,792 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 34 predicate places. [2023-11-12 02:30:42,793 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 44 transitions, 260 flow [2023-11-12 02:30:42,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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) [2023-11-12 02:30:42,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:42,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:42,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:30:42,794 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:42,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:42,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1876813708, now seen corresponding path program 1 times [2023-11-12 02:30:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:42,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398539614] [2023-11-12 02:30:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:42,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:42,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398539614] [2023-11-12 02:30:42,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398539614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:42,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:42,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:30:42,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543319568] [2023-11-12 02:30:42,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:42,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:30:42,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:42,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:30:42,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:30:43,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 432 [2023-11-12 02:30:43,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 44 transitions, 260 flow. Second operand has 7 states, 7 states have (on average 175.28571428571428) internal successors, (1227), 7 states have internal predecessors, (1227), 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) [2023-11-12 02:30:43,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:43,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 432 [2023-11-12 02:30:43,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:43,302 INFO L124 PetriNetUnfolderBase]: 58/185 cut-off events. [2023-11-12 02:30:43,303 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2023-11-12 02:30:43,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 185 events. 58/185 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 682 event pairs, 9 based on Foata normal form. 8/192 useless extension candidates. Maximal degree in co-relation 639. Up to 42 conditions per place. [2023-11-12 02:30:43,305 INFO L140 encePairwiseOnDemand]: 423/432 looper letters, 45 selfloop transitions, 24 changer transitions 3/76 dead transitions. [2023-11-12 02:30:43,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 574 flow [2023-11-12 02:30:43,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:30:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-12 02:30:43,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2655 transitions. [2023-11-12 02:30:43,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4097222222222222 [2023-11-12 02:30:43,315 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2655 transitions. [2023-11-12 02:30:43,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2655 transitions. [2023-11-12 02:30:43,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:43,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2655 transitions. [2023-11-12 02:30:43,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 177.0) internal successors, (2655), 15 states have internal predecessors, (2655), 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) [2023-11-12 02:30:43,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 432.0) internal successors, (6912), 16 states have internal predecessors, (6912), 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) [2023-11-12 02:30:43,353 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 432.0) internal successors, (6912), 16 states have internal predecessors, (6912), 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) [2023-11-12 02:30:43,353 INFO L175 Difference]: Start difference. First operand has 73 places, 44 transitions, 260 flow. Second operand 15 states and 2655 transitions. [2023-11-12 02:30:43,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 574 flow [2023-11-12 02:30:43,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 558 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:30:43,357 INFO L231 Difference]: Finished difference. Result has 75 places, 50 transitions, 328 flow [2023-11-12 02:30:43,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=328, PETRI_PLACES=75, PETRI_TRANSITIONS=50} [2023-11-12 02:30:43,358 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 36 predicate places. [2023-11-12 02:30:43,358 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 50 transitions, 328 flow [2023-11-12 02:30:43,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 175.28571428571428) internal successors, (1227), 7 states have internal predecessors, (1227), 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) [2023-11-12 02:30:43,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:43,359 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] [2023-11-12 02:30:43,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:30:43,359 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:43,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:43,360 INFO L85 PathProgramCache]: Analyzing trace with hash 268356515, now seen corresponding path program 1 times [2023-11-12 02:30:43,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:43,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900884287] [2023-11-12 02:30:43,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:43,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:43,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:43,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900884287] [2023-11-12 02:30:43,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900884287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:43,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793080455] [2023-11-12 02:30:43,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:43,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:43,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:43,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:43,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:43,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 432 [2023-11-12 02:30:43,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 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) [2023-11-12 02:30:43,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:43,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 432 [2023-11-12 02:30:43,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:43,666 INFO L124 PetriNetUnfolderBase]: 54/179 cut-off events. [2023-11-12 02:30:43,666 INFO L125 PetriNetUnfolderBase]: For 287/291 co-relation queries the response was YES. [2023-11-12 02:30:43,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 179 events. 54/179 cut-off events. For 287/291 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 656 event pairs, 30 based on Foata normal form. 8/185 useless extension candidates. Maximal degree in co-relation 672. Up to 120 conditions per place. [2023-11-12 02:30:43,667 INFO L140 encePairwiseOnDemand]: 427/432 looper letters, 36 selfloop transitions, 10 changer transitions 16/68 dead transitions. [2023-11-12 02:30:43,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 68 transitions, 542 flow [2023-11-12 02:30:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:43,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:30:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 765 transitions. [2023-11-12 02:30:43,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427083333333333 [2023-11-12 02:30:43,671 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 765 transitions. [2023-11-12 02:30:43,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 765 transitions. [2023-11-12 02:30:43,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:43,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 765 transitions. [2023-11-12 02:30:43,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 191.25) internal successors, (765), 4 states have internal predecessors, (765), 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) [2023-11-12 02:30:43,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:43,678 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:43,678 INFO L175 Difference]: Start difference. First operand has 75 places, 50 transitions, 328 flow. Second operand 4 states and 765 transitions. [2023-11-12 02:30:43,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 68 transitions, 542 flow [2023-11-12 02:30:43,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 495 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-12 02:30:43,685 INFO L231 Difference]: Finished difference. Result has 72 places, 42 transitions, 272 flow [2023-11-12 02:30:43,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=272, PETRI_PLACES=72, PETRI_TRANSITIONS=42} [2023-11-12 02:30:43,686 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 33 predicate places. [2023-11-12 02:30:43,686 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 42 transitions, 272 flow [2023-11-12 02:30:43,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 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) [2023-11-12 02:30:43,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:30:43,687 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] [2023-11-12 02:30:43,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:30:43,687 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-12 02:30:43,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash 587269341, now seen corresponding path program 1 times [2023-11-12 02:30:43,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:43,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310248745] [2023-11-12 02:30:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:43,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:30:44,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:30:44,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310248745] [2023-11-12 02:30:44,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310248745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:44,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:44,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:30:44,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394912371] [2023-11-12 02:30:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:44,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:30:44,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:30:44,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:30:44,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:44,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 432 [2023-11-12 02:30:44,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 42 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2023-11-12 02:30:44,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:30:44,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 432 [2023-11-12 02:30:44,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:30:44,298 INFO L124 PetriNetUnfolderBase]: 21/92 cut-off events. [2023-11-12 02:30:44,298 INFO L125 PetriNetUnfolderBase]: For 164/165 co-relation queries the response was YES. [2023-11-12 02:30:44,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 92 events. 21/92 cut-off events. For 164/165 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 264 event pairs, 8 based on Foata normal form. 16/107 useless extension candidates. Maximal degree in co-relation 331. Up to 76 conditions per place. [2023-11-12 02:30:44,299 INFO L140 encePairwiseOnDemand]: 429/432 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-11-12 02:30:44,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 43 transitions, 342 flow [2023-11-12 02:30:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:30:44,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 756 transitions. [2023-11-12 02:30:44,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375 [2023-11-12 02:30:44,303 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 756 transitions. [2023-11-12 02:30:44,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 756 transitions. [2023-11-12 02:30:44,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:30:44,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 756 transitions. [2023-11-12 02:30:44,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2023-11-12 02:30:44,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:44,309 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 432.0) internal successors, (2160), 5 states have internal predecessors, (2160), 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) [2023-11-12 02:30:44,310 INFO L175 Difference]: Start difference. First operand has 72 places, 42 transitions, 272 flow. Second operand 4 states and 756 transitions. [2023-11-12 02:30:44,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 43 transitions, 342 flow [2023-11-12 02:30:44,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 43 transitions, 294 flow, removed 2 selfloop flow, removed 12 redundant places. [2023-11-12 02:30:44,312 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2023-11-12 02:30:44,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2023-11-12 02:30:44,313 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 17 predicate places. [2023-11-12 02:30:44,313 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2023-11-12 02:30:44,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2023-11-12 02:30:44,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-11-12 02:30:44,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2023-11-12 02:30:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-11-12 02:30:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 10 remaining) [2023-11-12 02:30:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 10 remaining) [2023-11-12 02:30:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 10 remaining) [2023-11-12 02:30:44,317 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-11-12 02:30:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 10 remaining) [2023-11-12 02:30:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 10 remaining) [2023-11-12 02:30:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-11-12 02:30:44,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:30:44,318 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:30:44,324 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:30:44,324 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:30:44,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:30:44 BasicIcfg [2023-11-12 02:30:44,328 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:30:44,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:30:44,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:30:44,328 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:30:44,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:28" (3/4) ... [2023-11-12 02:30:44,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:30:44,334 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-12 02:30:44,340 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-12 02:30:44,340 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:30:44,340 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:30:44,341 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:30:44,425 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:30:44,425 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:30:44,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:30:44,426 INFO L158 Benchmark]: Toolchain (without parser) took 17470.50ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 123.3MB in the beginning and 157.3MB in the end (delta: -34.0MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-11-12 02:30:44,427 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:30:44,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.97ms. Allocated memory is still 155.2MB. Free memory was 123.3MB in the beginning and 103.0MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:30:44,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.93ms. Allocated memory is still 155.2MB. Free memory was 103.0MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:30:44,428 INFO L158 Benchmark]: Boogie Preprocessor took 69.30ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:30:44,428 INFO L158 Benchmark]: RCFGBuilder took 727.02ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 108.8MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:30:44,429 INFO L158 Benchmark]: TraceAbstraction took 15884.16ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 107.6MB in the beginning and 162.5MB in the end (delta: -54.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-12 02:30:44,429 INFO L158 Benchmark]: Witness Printer took 97.71ms. Allocated memory is still 224.4MB. Free memory was 162.5MB in the beginning and 157.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:30:44,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.97ms. Allocated memory is still 155.2MB. Free memory was 123.3MB in the beginning and 103.0MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.93ms. Allocated memory is still 155.2MB. Free memory was 103.0MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.30ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 727.02ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 108.8MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15884.16ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 107.6MB in the beginning and 162.5MB in the end (delta: -54.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 97.71ms. Allocated memory is still 224.4MB. Free memory was 162.5MB in the beginning and 157.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8s, 196 PlacesBefore, 39 PlacesAfterwards, 204 TransitionsBefore, 41 TransitionsAfterwards, 11424 CoEnabledTransitionPairs, 8 FixpointIterations, 48 TrivialSequentialCompositions, 132 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 41 ConcurrentYvCompositions, 6 ChoiceCompositions, 227 TotalNumberOfCompositions, 19829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11314, independent: 10904, independent conditional: 0, independent unconditional: 10904, dependent: 410, dependent conditional: 0, dependent unconditional: 410, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6627, independent: 6548, independent conditional: 0, independent unconditional: 6548, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11314, independent: 4356, independent conditional: 0, independent unconditional: 4356, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 6627, unknown conditional: 0, unknown unconditional: 6627] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 730]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 289 locations, 10 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: 15.7s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1412 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1056 mSDsluCounter, 415 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 351 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2516 IncrementalHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 64 mSDtfsCounter, 2516 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=10, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 773 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:30:44,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e330fad7-e04c-48cd-955c-32ded2d3188b/bin/uautomizer-verify-uTZkv6EMXl/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